Canon NP6218 manual

SER VICE MANU AL REVISION 0 FY8-13EX-000 MAY 1997 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV .0 MA Y 1997 PRINTED IN JAP AN (IMPRIMÉ A U JAPON)[...]

IMPORT ANT THIS DOCUMENT A TION IS PUBLISHED BY CANON INC ., JAP AN, T O SER VE AS A SOURCE OF REFERENCE FOR WORK IN THE FIELD . SPECIFICA TIONS AND OTHER INFORMA TION CONT AINED HEREIN MA Y V AR Y SLIGHTL Y FROM A CTU AL MA CHINE V ALUES OR THOSE FOUND IN AD VER TISING AND O THER PRINTED MA TTER. ANY QUESTIONS REGARDING INFORMA TION CONT AINED HER[...]

This Ser vice Man ual contains the bsic f acts and figures about the plain paper copier NP6218, and is compiled to ser ve as a handy ref erence f or ser vicing the machine in the field. The NP6218 is designed to enable fully automated cop ying work and may be configured with the f ollowing accessories: 1. Cassette F eeding Module-B2* 2. Cassette F [...]

Chapter 9 Maintenance and Ser vicing provides tab les of per iodically replaced par ts and consumables/dur ables and scheduled ser vicing char ts. Chapter 10 T roub leshooting provides tab les of maintenance/inspection, standards/adjustments, and prob lem identification (image f ault/malfunction). Appendix contains a general timing char t and gener[...]

System Configuration The NP6218 ma y be configured with the f ollowing systems options: COPYRIGHT © 1997 CANON INC. CANON NP6218 REV .0 MA Y 1997 PRINTED IN JAP AN (IMPRIMÉ A U JAPON) iii ADF-E1 Sends originals one by one from a stack set on its tray Stapler Sorter B2/D1, MS-B1 Automatically sorts or (page collation) or groups up to 10 sets of co[...]

1. GENERAL DESCRIPTION COPYRIGHT © 1997 CANON INC. CANON NP6218 REV .0 MAR. 1997 PRINTED IN JAP AN (IMPRIMÉ A U JAPON) iv[...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV .0 MA Y 1997 PRINTED IN JAP AN (IMPRIMÉ A U JAPON) v CONTENTS CHAPTER 1 GENERAL DESCRIPTION I. FEA TURES .........................................1-1 II. SPECIFICA TIONS ..............................1-2 A. Copier ............................................1-2 1. T ype ................................[...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV .0 MA Y 1997 PRINTED IN JAP AN (IMPRIMÉ A U JAPON) vi I. PROCESSES .....................................4-1 A. Outline ...........................................4-1 B. Basic Sequence of Operations (image f ormation system) ..............4-3 C . Controlling the Scanning Lamp .....4-4 1. Outline .......[...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV .0 MA Y 1997 PRINTED IN JAP AN (IMPRIMÉ A U JAPON) vii 1. Outline ......................................4-16 2. Switching the Static Eliminator Bias V oltage Lev el ....................4-17 3. Ensuring Proper Separation of Thin P aper ................................4-17 G. Controlling Blank Exposure .[...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV .0 MA Y 1997 PRINTED IN JAP AN (IMPRIMÉ A U JAPON) viii C . Pre-Registration Stationary Jam ...5-13 D . Separation Dela y Jam ...................5-14 E. Separation Stationar y Jam ............5-14 F . Deliv er y Delay J am ........................5-15 G. Deliv er y Stationar y Jam ................5-15 [...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV .0 MA Y 1997 PRINTED IN JAP AN (IMPRIMÉ A U JAPON) ix CHAPTER 7 EXTERNALS/A UXILIAR Y MECHANISMS I. PO WER SUPPL Y ...............................7-1 A. Outline ...........................................7-1 B. P ower Supply Circuit Assemb ly .....7-2 C . Detecting Errors in the P ower Supply PCB .....[...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV .0 MA Y 1997 PRINTED IN JAP AN (IMPRIMÉ A U JAPON) x CHAPTER 10 TR OUBLESHOO TING I. MAINTENANCE AND INSPECTION .. 10-3 A. Image Adjustment Basic Procedure ....................................10-3 B. P eriodical Ser vicing .....................10-4 II . ST AND ARDS AND ADJUSTMENTS .. 10-5 A. Image Adju[...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV .0 MA Y 1997 PRINTED IN JAP AN (IMPRIMÉ A U JAPON) xi 10. The cop y has white spot (v er tical)..................................10-55 11. The cop y has white lines (v er tical)..................................10-55 12. The cop y has white spots (horizontal). ............................10-56 13. The [...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV .0 MA Y 1997 PRINTED IN JAP AN (IMPRIMÉ A U JAPON) xii APPENDIX A. GENERAL TIMING CHART................A-1 B. SIGNALS AND ABBREVIA TIONS ......A-2 C . GENERAL CIRCUIT DIA GRAM .........A-3 not av ailable D . SPECIAL T OOLS................................A-5 E. SOL VENTS/OILS ...........................[...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 1 GENERAL DESCRIPTION I. FEA TURES .........................................1-1 II. SPECIFICA TIONS ..............................1-2 A. Copier ............................................1-2 B. Cassette F eeding Module-B2/ Cassette F eeding Mo[...]

I. FEA TURES The copier becomes ready to mak e copies as soon as it is tur ned on. When fitted with options, it pro vides a maximum of four paper sources . 1. Multiple front loading and m ultifeeder for space sa ving. • The cassette may be slid out to the front f or paper supply work. • With the adjustable cassette and the multif eeder , v ario[...]

II. SPECIFICA TIONS A. Copier 1. T ype 2. System COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 1 GENERAL DESCRIPTION 1-2 Item Body Cop yboard Light source Lens Photosensitiv e medium Description Desk top Fix ed Fluorescent lamp Zoom OPC (ø30) Item Cop ying Charging Exposure Cop y density [...]

3. Features Caution: 1. Use Canon-recommended paper . 2. Remov e cur ling bef ore feeding f or a second time. 3. F an out the transparencies bef ore setting them on the multif eeder to pre vent adhesion. COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 1 GENERAL DESCRIPTION 1-3 Item Original [...]

4. Others T able 1-201 Standar d Repr oduction Ratios Reproduction ratio DIRECT REDUCE I REDUCE II ENLARGE I ENLARGE II ZOOM COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 1 GENERAL DESCRIPTION 1-4 Item Operating en vironment T emperature Humidity Atmospheric pressure P ower supply 230 V (5[...]

T able 1-202 Cop ying Speed Specifications subject to change without notice. B. Cassette Feeding Module-B2/Cassette Feeding Module-A2 T able 1-203 Copies/min 10 18 21 14 18 20 12 12 11 10 19 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 1 GENERAL DESCRIPTION 1-5 Reproduction ratio DIRECT 1[...]

III. NAMES OF P AR TS A. Exterior View Figure 1-301 Figure 1-302 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 1 GENERAL DESCRIPTION 1-6 q Cop yboard cover w P ow er s witch e Clip tra y r Multif eeder t Cassette y F ront door u Control panel i Cop yboard glass q Open/close le ver w Cop y [...]

B. Cross Section 1. Body Figure 1-303 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 1 GENERAL DESCRIPTION 1-7 q No . 3 mirror w No . 2 mirror e No . 1 mirror r Scanning lamp t Cop yboard glass y Cop yboard cover u Lens i Exhaust f an o Pre-e xposure lamp !0 Primar y charging roller !1 Refl[...]

2. Cassette Feeding Module-A2 Figure 1-304 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 1 GENERAL DESCRIPTION 1-8 q Cassette 2 w Cassette 3 e Cassette 2 pick-up roller r Cassette 3 pick-up roller t Drive roller y F eeding roller 6 4 2 1 3 5[...]

IV . OPERA TION A. Control P anel Figure 1-401 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 1 GENERAL DESCRIPTION 1-9 123 456 789 C 0 Max 200% A4 1:1 Min 50% A3 A5 A4 A3 A4 A4 A5 A 1:1 123 Autom. Paper A3 A4 A4 R A5 A5 R A4 R % Autom. Zoom Zoom + – qw e r t y u i o !1 !2 !0 @1 @2 !3 !4 [...]

B. Operation Mode T able 1-401 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 1 GENERAL DESCRIPTION 1-10 Mode Image Composition mode P age Separation mode Interrupt mode A uto Ratio mode AE mode Sor t/staple sor t/group mode Description Press to set/reset image composition mode. Press to se[...]

C. Making T w o-Sided/Overlay Copies (manual) Y ou can make two-sided or o verla y copies by man ually feeding paper . Y ou must, how e ver , k eep the f ollowing in mind when making such copies: q Be sure to orient the paper the same wa y f or both sides when tur ning it ov er . w Make sure that the paper has not absorbed moisture . e Make sure th[...]

D . User Mode 1. Outline The copier provides user mode , which allows the user to change v ar ious settings or to make v arious adjustments on his/her own; see T able 1-402. T able 1-402 Displa y COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 1 GENERAL DESCRIPTION Menu No . 1 2 3 5 6 9 0 1-[...]

2. Common Operations a. Ke ys to Use in User Mode • Clear K ey Use it to retur n to the previous step; or , use it to clear a setting entered by mistak e when making mode settings. • Star t K ey Use it to accept a selected item when making user mode settings. • AE K ey Use it to retur n to cop y mode when making user mode settings. b. Operati[...]

T able 1-403 • The display indicates the ne w setting (if 10 min, indicates ‘2-3’). 5) Press the Star t ke y . • The auto power-off time is changed, and the displa y retur ns to “ ”. 6) Press the AE ke y . • The copier retur ns to standby state . Reference: If y ou w ant to disab le the auto po w er-off function, use service mode (See[...]

7) Press the Star t ke y . • The zoom reproduction is fine-adjusted, and the displa y retur ns to “ ”. 8) Press the AE ke y . • The copier retur ns to standby state . The fine-adjustment reproduction ratios as sho wn in the cop y density displa y are as f ollows: ■ Zoom Fine-Adjustment (Reduce) ■ Zoom Fine-Adjustment (Enlarge) Press the[...]

4) Enter q or p using the ke ypad to specify ‘On’ or ‘Off ’. • The display indicates the ne w setting (if Off, ‘4-0’.) 5) Press the Star t ke y . • The auto cassette change function is tur ned on or off, and the displa y retur ns to “ ” . 6) Press the AE ke y . • The copier retur ns to standby state . 7. T urning On/Off the Au[...]

9. Selecting the Density Adjustment Method f or Standard Mode ( ) 1) Hold down the AE k ey f or 4 sec or more. • The display indicates “ ”. 2) Enter o using the k eypad so that the displa y indicates “ ”. 3) Press the Star t ke y . • The display indicates ‘9-1’. T able 1-407 4) Enter q or p using the k e ypad to select AE or manual [...]

11. Quic k Guide to User Mode T able 1-408 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 1 GENERAL DESCRIPTION 1-18[...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 1 GENERAL DESCRIPTION 1-19 E. Handling the T oner Bottle Instruct the user to dispose of any empty toner bottle as nonflamable material. Caution: Do not dispose of the toner bottle into fire. It ma y explode . V . W ARNINGS AND A CTIONS • Han[...]

VII. IMA GE FORMA TION A. Outline Figure 1-601 The copier uses an electrostatogr aphic method to produce images and is constructed as shown in Figure 1-601. It is equipped with an automatic control mechanism to ensure stab le reproduction of high-quality images. COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME [...]

The NP6218 generates images in the f ollowing eight steps. Step 1. Pre-e xposure Step 2. Primar y charging Step 3. Image e xposure Step 4. De velopment (A C + positive DC) Step 5. T ransf er (positive DC) Step 6. Seperation (A C + positive DC) Step 7. Fixing Step 8. Drum cleaning Figure 1-602 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1[...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y . 1997 PRINTED IN JAP AN (IMPRIME AU J APON) CHAPTER 1 GENERAL DESCRIPTION 1-22[...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 2 B ASIC OPERA TION I. BASIC CONSTR UCTION ...................2-1 A. Functional Construction .................2-1 B. Outline of the Electrical Circuitr y ...2-2 C . Basic Sequence of Operations (2 copies continuous, AE) .............2-3 D . Mai[...]

I. B ASIC CONSTR UCTION A. Functional Construction The copier ma y be divided into four b loc ks; namely , the pic k-up/feeding system, e xposure system, image formation system, and control system. Figure 2-101 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 2 BASIC OPERA TION 2-1 Control sy[...]

B. Outline of the Electrical Circuitry The copier’ s principal electr ical mechanisms are controlled by the microprocessor on the DC controller PCB. The microprocessor reads the input signals from the sensors and operation k eys according to the stored prog ram and generates signals used to drive such loads as motors, solenoids , and lamps. The m[...]

C. Basic Sequence of Operations (2 copies continuous, AE) Figure 2-103 T able 2-101 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 2 BASIC OPERA TION 2-3 STBY INTR SCFW Power switch ON Copy Start key ON AER Main motor (M1) Fixing heater Primary charging bias Transfer bias Static eliminator [...]

D . Main Motor Contr ol Circuit 1. Outline Figure 2-104 shows the circuit used to control the main motor (M1); the circuit has the f ollowing functions: q tur ns on and off the main motor . w controls the main motor to a specific rotation speed. The main motor (M1) is a DC motor that has a b uilt-in clock pulse gener ator . When the motor rotates, [...]

E. Inputs to the DC Controller PCB 1. Inputs to the DC Contr oller PCB (1/3) Figure 2-105 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 2 BASIC OPERA TION 2-5 5V PS 1 Registration sensor 5V J307 -3 -2 -1 PS 2 LHP When lens detects home position sensor, '1'. (when light-blocking p[...]

2. Inputs to the DC Contr oller PCB (2/3) Figure 2-106 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 2 BASIC OPERA TION 2-6 See p. 6-1. J651 -6 -5 -4 -3 -2 -1 J314 -7 -8 -9 -10 -11 -12 J313 -4 -5 -6 J304 -3 -4 J304 -1 -2 J309 J310 J801 J802 CS CSZ_1 CSZ_2 CSZ_3 CSZ_4 Cassette size sensor C[...]

3. Inputs to the DC Contr oller PCB (3/3) Figure 2-107 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 2 BASIC OPERA TION 2-7[...]

F . Outputs fr om the DC Controller PCB 1. Outputs fr om the DC Controller PCB (1/3) Figure 2-108 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 2 BASIC OPERA TION 2-8 BP102 BP103 BP101 +5V 25V +5V +24V A B B A RL102 RL101 Q512 HTON* PWSW* TEP* HTRD EHTRL* Cassette heater (H4) Cassette heat[...]

2. Outputs fr om the DC Controller PCB (2/3) Figure 2-109 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 2 BASIC OPERA TION 2-9 When '0', registration clutch turns on. (registration roller rotates) RGCLD* DC controller PCB CL1 +24V J303 -6 -5 Registration clutch When '0'[...]

3. Outputs fr om the DC Controller PCB (3/3) Figure 2-110 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 2 BASIC OPERA TION 2-10 +24V J316 -1 -2 J315 -7 -6 J320 -1 J310 -4 -1 -2 -3 J802 -13 -16 -15 -14 J803 -2 -4 -3 -1 -2 J401 -1 -2 HEFD* +24V PEXP* +24V TCNTD* +5V CCD* CCDT* Heat exhaust f[...]

G. Inputs to and Outputs from the 1-Cassette Unit Driver PCB 1. Inputs to and Outputs fr om the 1-Cassette Unit Driver PCB (1/1) Figure 2-111 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 2 BASIC OPERA TION 2-11 5V J110 -1 -3 -2 J110 -4 -6 -5 PS1cu C2VPD Cassette 2 vertical path sensor 5V [...]

H. Inputs to and Outputs from the 2-Cassette Unit Driver PCB 1. Inputs to and Outputs fr om the 2-Cassette Unit Driver PCB (1/2) Figure 2-112 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 2 BASIC OPERA TION 2-12 5V J110 -1 -3 -2 J110 -4 -6 -5 PS1cu C2UPD Cassette 2 vertical path sensor 5V [...]

2. Inputs to and Outputs fr om the 2-Cassette Unit Driver PCB (2/2) Figure 2-113 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 2 BASIC OPERA TION 2-13 Cassette driver PCB DC controller PCB CMA CMA* CMB CMB* J114 -1 -2 -3 -4 -5 -6 Cassette unit motor While M1cu is rotating, alternates betwe[...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MAR. 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 2 BASIC OPERA TION 2-14[...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 3 EXPOSURE SYSTEM I. BASIC OPERA TION ...........................3-1 A. V arying the Reproduction Ratio ....3-1 II. LENS DRIVE SYSTEM ......................3-1 A. Outline ...........................................3-1 B. Lens Motor Drive Circui[...]

I. B ASIC OPERA TION A. V arying the Reproduction Ratio The reproduction ratio across the photosensitiv e dr um is v aried by the lens drive system; on the other hand, the ratio around the drum is v aried by the scanner drive system. The lens drive system uses a z oom lens; as shown in Figure 3-101, the position and f ocal distance of the lens are [...]

Figure 3-201 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 3 EXPOSURE SYSTEM 3-2 Change solenoid (SL1) Lens motor (M3) Lens cable Lens motor (M3) Change solenoid (SL1) Relay gear SL1 'ON' (lens drive) SL1 'OFF' (blank exposure unit drive) Lens home position sensor (PS2)[...]

B. Lens Motor Drive Circuit The lens motor (M3) is a stepping motor and rotates in response to drive po wer LNSC-A and LNSC-B and pulse signals LNSA, LNSA*, LNSB, and LNSB*. 1. K eeping the Lens Motor Stationar y All LNSA, LNSA*, LNSB, and LNSB* are caused to go OFF , thereby stopping and retaining the motor stationar y . 2. Driving the Lens Motor [...]

C. Basic Sequence of Operations (lens drive system; non-Direct) When a specific reproduction ratio is selected, the lens alw a ys retur ns to the home position bef ore moving to the position appropriate to the selected ratio . This also holds true when the reproduction ratio is reset to Direct. Figure 3-203 COPYRIGHT © 1997 CANON INC. CANON NP6218[...]

III. SCANNING DRIVE SYSTEM A. Driving the Scanner 1. Outline The scanner drive system is driven b y the scanner motor (M2). The scanner motor changes the direction of its rotation between when the scanner mo v es f orw ard and when it mov es in re v erse; the speed of its rotation v aries according to the selected reproduction ratio . How e ver , t[...]

2. Relationship between the Scanner Sensor and Signals T able 3-301 Reference: The registration clutch is turned on in response to a press on the Copy Star t ke y or when the scanner star ts to mov e f orward. 3. Basic Sequence of Operations (scanner) Figure 3-302 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIM[...]

4. Driving the Scanner Motor a. Outline The scanner motor (M2) is a 4-phase control stepping motor . The direction and the speed of the scanner motor (M2) are s witched by controlling the output timing of drive pow er SC-COMA and SC-COMB and pulse signals A, A*, B, and B*. b. Mechanism The microprocessor (Q301) on the DC controller PCB receiv es su[...]

5. Scanner Operations in P age Separation Mode (non-AE, page separation, A4, 2 copies) Figure 3-304 I, II, and III shown in Figure 3-108 are controlled b y the microprocessor on the DC controller PCB with ref erence to the scanner home position signal (f alling edge of SCHP) of the first original. The microprocessor deter mines the distance to be t[...]

IV . DISASSEMBL Y AND ASSEMBL Y This section e xplains mechanical characteristics and descr ibes how to disassemble/assemb le the machine. Be sure to obser v e the f ollowing whene v er disassembling/assemb ling the machine: 1. Disconnect the pow er plug bef ore star ting the work. 2. Unless otherwise shown, assemb le the par ts by re versing the s[...]

2. Detac hing the Scanner Cable 1) Detach the cop yboard cover , r ight cov er , left cov er , upper rear cov er , and low er rear cov er . 2) Detach the cop yboard glass. 3) Detach the control panel. 4) Detach the cop yboard cover suppor t q . Figure 3-402 5) Remov e the six screws w , and detach the upper left sta y e . Figure 3-403 6) Fix the ca[...]

7) Loosen the two scre ws r to loosen the cable tension (both front and right). Figure 3-405 8) Mov e the No . 1 mirror mount to the front to align the long hole in the front side plate and the cable fixing scre w t . Then, detach the cable fixing scre w t to separate the No . 1 mirror mount and the scanner cable (both front and rear). Figure 3-406[...]

9) Remov e the pully clip , and detach the scanner cable (both front and rear). 3. Assemb ling the Mirror P osition T ool 1) Remov e the screw f ound in position B. Figure 3-407 2) Fit the screw remo ved in step 1) in position A, and tighten it slightly . 3) Extend the ar m accommodated by the main fr ame unit it b utts against the stopper as in Fi[...]

4. Routing the Scanner Cab le K eep the mirror positioning tool (FY9-3009) and pulley clip (FY9-3010) handy when routing the scanner cable . Fur ther , if you are using the mirror positioning tool, assemble it in adv ance by ref err ing to “3. Assembling the MIrror P ositioning T ool. ” Figure 3-409 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV[...]

1) Put the steel ball into the hole of the pulle y , and wind the cab le four times to ward the flange and then nine times in the opposite direction; thereafter , fix it in place using the pulley clip . 2) As in w , set the mirror positioning tool between the No . 1 and No . 2 mirror mounts. 3) Loosen the screw on the mirror pulle y mount as in e ;[...]

Caution: When attaching the wire spring, pay attention to the orientation of the spring; see the diagrams belo w . If not attached correctly , its hook tip could interf ere with the cable . Figure 3-411 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 3 EXPOSURE SYSTEM 3-15 Wirespring Wirespr[...]

5. Adjusting the P osition of the Mirr ors (optical length of No. 1, 2, and 3 mirr ors) 1) K eep the mirror positioning tool handy . (See “3. Assembling the Mirror P ositioning T ool. ”) 2) Mov e the No . 1 mirror mount tow ard the front, and align the angular hole in the front side plate and the cable fixing scre w q . Figure 3-412 3) Loosen t[...]

5) Attach the scanner cable fixing to the No . 1 mirror mount using two scre ws e (both front and rear). 6) Tighten the screw on the pulle y . 7) Detach the tool (FY9-3009). Figure 3-414 6. Cleaning the Scanner No. 6 Mirr or 1) Open the front cov er . 2) Open the copier by oper ating the copier open/close le ver . 3) Detach the dust-proofing glass [...]

B. Lens Drive Assembly 1. Detac hing the Lens Drive Motor 1) Detach the upper rear cov er and r ight glass rerainer . 2) Detach the cop yboard glass. 3) Mov e the No . q mirror assemb ly 1 to the left. 4) Remov e the two screws w , and detach the lens cov er e . Figure 3-416 5) Loosen the tension on the spring r , and detach the cable t . Figure 3-[...]

6) Disconnect the two connectors y from the copier’ s rear . Figure 3-418 7) Remov e the two screws u , and detach the lens drive unit i . Figure 3-419 8) Remov e the two screws , and disconnect the connector !0 ; then, detach the lens motor !1 . Caution: Disconnect the connector !0 first bef ore removing the screw o ; otherwise, the har ness and[...]

Figure 3-420 2. Routing the Lens Cab le Figure 3-421 Lens Drive Assembl y 1) Attach the lens cable to each pulle y q while winding it around the lens pulley w as indicated in Figure 3-421. 2) Mov e the tension pulley e to hook the cab le. COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 3 EXP[...]

3. Adjusting the P osition of the Change Solenoid Make adjustments b y loosening the two scre ws t so that the gear r is mov ed fully in the direction of b by the arm e when the steel core q of the solenoid is fully pushed in the direction of B b y a finger , i.e., when the E-ring w comes into contact with the solenoid. Figure 3-422 COPYRIGHT © 19[...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MAR. 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 3 EXPOSURE SYSTEM 3-22[...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 4 IMA GE FORMA TION SYSTEM I. PROCESSES .....................................4-1 A. Outline ...........................................4-1 B. Basic Sequence of Operations (image f ormation system) ..............4-3 C . Controlling the Scanning [...]

I. PR OCESSES A. Outline Figure 4-101 shows the basic construction of the copier’ s image f ormation system, whose main functions are as f ollows: • scanning lamp control • pr imar y charging control • transf er charging control • separation static eliminator control • dev eloping bias control • blank e xposure lamp control Figure 4-1[...]

Figure 4-102 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 4 IMA GE FORMA TION SYSTEM 4-2 DC controller PCB Microprocessor (Q301) AE sensor Scanning lamp Copyboard glass Lens Blank exposure unit Primary charging roller Composite power supply Scanning lamp ON control circuit assembly Microp[...]

B. Basic Sequence of Operations (image formation system) 1 AE only . 2 half pre-heating control. 3 full pre-heating control. 4 ON pre-heating control. Figure 4-103 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 4 IMA GE FORMA TION SYSTEM 4-3 Main motor/Pre-exposure lamp Primary charging Tra[...]

C. Controlling the Scanning Lamp 1. Outline Figure 4-104 shows the circuit that controls the scanning lamp; the circuit has the f ollowing functions: • tur ns on and off the scanning lamp . • controls scanning lamp pre-heating operation. • controls scanning lamp intensity . • controls the scanning lamp heater . The copier’ s scanning lamp[...]

2. T urning On and Off the Scanning Lamp The microprocessor (Q301) on the DC controller PCB e xer ts control so that the microprocessor (Q512) on the composite pow er supply PCB generates the scanning lamp ON signal (FLON)=0 (pulse signal, 1 kHz). At the time, the fluorescent lamp driv e circuit applies the output of the secondar y side of the tran[...]

■ Input Signals from the DC Controller to the Composite P ow er Supply PCB *ON duty ratio of FLO W signal (in relation to 1kHz): 40% or more ................................ON I less than 40% ..............................ON II T able 4-101 ■ Half Pre-Heating Control (between press on P o wer s witch and press on Copy Star t ke y; par t of scan[...]

■ Scanning Lamp ON Pre-Heating Control (during copying oper ation I) Figure 4-108 5. Contr olling the Intensity of the Scanning Lamp (FL1) • If the intensity of the fluorescent lamp is too low at pow er-on, The star ting power of the intensity adjustment sensor lo wers , and the fluorescent lamp intensity adjustment signal (FLS) of the amplifie[...]

■ Input to the Re versal Amplifier Circuit (if the intensity increased gr adually) Figure 4-109 ■ Changes in the Duty Ratio of the FLON signal Figure 4-110 6. Contr olling the Fluorescent Lamp Heater As the temperature around the scanner increases , the resistance of the fluorescent lamp ther mistor (TH3) low ers, thereb y lowering the voltage [...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 4 IMA GE FORMA TION SYSTEM 4-9 7. Fluorescent Lamp A utomatic Correction Control (AL VC control) The copier e xecutes control (AL VC control) that automatically corrects the scanning lamp on v oltage to make up f or the change that otherwise co[...]

D . Contr olling the Primar y Char ging Roller Bias 1. Outline Figure 4-111 shows the circuit that controls the v oltage applied to the pr imar y charging roller ; the circuit has the f ollowing functions: • tur ns on and off the pr imar y charging roller bias. • controls the pr imar y charging roller bias to a constant v oltage. • switches t[...]

2. T urning On and Off the Primar y Charging Roller Bias The microprocessor (Q512) on the composite pow er supply PCB generates the PDCPWN signal (pulse signal) under the control of the microprocessor master (Q301) on the DC controller PCB . In response to the signal, the secondar y side of the main transf or mer (T101) tur ns on to apply a pr imar[...]

5. Application V oltage Level (APVC) f or the Primar y Charging Roller and Scanning Lamp On V oltage Le vel A utomatic Correction Changes in the static latent image could cause the quality of copies; such changes, in tur n, ma y be attr ibuted to the f ollowing f actors: • changes in the dr um sensitivity • changes in the charge volume of the p[...]

E. Controlling the T ransfer Roller Bias 1. Outline The copier uses a direct transf er method by a roller to transf er images to paper . F or this reason, its bias control diff ers from that of conv entional copiers, which tr ansf er images by corona charging. The f ollowing three types of transf er roller bias are used; go through the descriptions[...]

Figure 4-113 shows the circuit used to control the f oregoing three types of bias; the circuit has the f ollowing functions: • tur ns on and off the transf er roller bias • controls the transf er bias to a constant v oltage • controls the correction of the transf er bias v oltage le vel Figure 4-113 COPYRIGHT © 1997 CANON INC. CANON NP6218 R[...]

2. T urning On and Off the T ransfer Roller Bias The TFWON signal is gener ated under the control of the microprocessor (Q512) on the composite pow er supply PCB. The signal causes the secondary side of the transf er transf or mer (T402) to tur n on, thereby applying a DC bias to the transf er roller . T ab le 4-102 shows combinations of signals th[...]

F . Contr olling the Static Eliminator Bias 1. Outline Figure 4-114 shows the circuit that controls the static eliminator bias; the circuit has the f ollowing functions: • tur ns on and off the static eliminator bias and controls the voltage to a constant le vel • switches the static eliminator bias v oltage le v el Figure 4-114 COPYRIGHT © 19[...]

2. Switching the Static Eliminator Bias V oltage Level The microprocessor (Q512) on the composite pow er supply PCB generates the JCTL signal (analog signal) under the control of the DC controller PCB. In response , the secondar y side of the main transf or mer (T101) tur ns on to generate a bias f or the static eliminator with the help of the main[...]

G. Controlling Blank Exposure 1. Outline The copier uses the reflecting plate to direct the light of the pre-e xposure lamp to the photosensitiv e drum by w a y of e xecuting b lank exposure , thereby blanking (whiting) out the non-image areas and areas between copies . The area of b lank exposure is controlled b y the two slide shutters and one op[...]

2. Blanking (Whiting) of Non-Image Areas for Reduction In Reduce mode, the change solenoid (SL1) turns on, and the lens mov es according to the selected reproduction ratio . When the change solenoid (SL1) turns off, the drive of the lens motor is transmitted to gears A and B , thereby moving the slide shutter (rear , front) f or the appropr iate di[...]

H. Controlling the Primary Corona Roller Cleaning Mec hanism 1. Outline The copier’ s primar y charging roller is equipped with an automatic cleaning mechanism. The automatic cleaning mechanism cleans the primar y charging roller dur ing initial rotation(INTR) after having made 250 or more copies , i.e., after e x ecuting transf er roller release[...]

I. Releasing the T ransfer Roller 1. Outline The copier’ s transf er roller is equipped with a releasing mechanism. The releasing mechanism releases the transf er roller to pre v ent adhesion of toner to the roller under the f ollowing condition: • dur ing post rotation (LSTR) after as many as 50 copies or more ha v e been made (cumulativ e) Fi[...]

II. DEVELOPING ASSEMBL Y AND CLEANING ASSEMBL Y A. Outline The copier’ s photosensitiv e drum, dev eloping cylinder , No . 1 stirr ing rod, and No . 2 stirring blade are rotated b y the drive of the main motor (M1). The le vel of the toner inside the de veloping assemb ly is monitored by the toner sensor ; when it drops below a specific le vel, t[...]

B. Controlling the T oner Level Detection The le vel of toner inside the car tr idge is monitored b y the antenna sensor circuit. The toner le vel sensor is f ound inside the car tr idge, and an A C bias is applied to the de veloping cylinder . The de veloping cylinder and the toner le vel sensor are connected b y means of static electricity; the v[...]

q When the Le v el of T oner Is Adequate The presence of toner around the toner le vel sensor causes the A C bias generated by the sensor to be larger than the ref erence signal. The condition causes the output from the comparator circuit to go ‘1’ and the toner out signal (TEP*) to go ‘0’. w When the Le v el of toner Is Inadequate The tone[...]

C. Controlling the De velopment Bias 1. Outline Figure 4-204 shows the circuit used to control the de v elopment bias; the circuit has the f ollowing functions: • tur ns on and off the AC component of the de v elopment bias • tur ns on and off the DC component of the dev elopment bias • controls the voltage le vel of the DC component of the d[...]

3. T urning On and Off the A C Component of the Development Bias The microprocessor (Q512) on the composite pow er supply PCB generates the A CBIAS signal (pulse signal) under the control of the microprocessor master (Q301) on the DC controller PCB. In response to the signal, the de v elopment bias A C component generating transf or mer (T301) tur [...]

D . A utomatic Contr ol of Copy Density 1. Outline The copier has an automatic density adjustment mechanism (AE), which automatically controls the DC component of the de velopment bias according to the density of originals. As long as the original is more or less uniform in density , the AE mechanism v aries the DC component of the dev elopment bia[...]

Figure 4-207 (Area Read by the AE Sensor) Reference: When copies are made in AE using an ADF-E1 (accessor y), the density is check ed f or each or iginal. COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 4 IMA GE FORMA TION SYSTEM 4-28 27 mm (approx.) Center reference 50 mm (approx.) A 14 mm [...]

3. AE Adjustment The copier’ s AE adjustment is e x ecuted in service mode and consists of the follo wing three types: • lamp intensity automatic adjustment (No . 301) during AE scans • copy density (de v elopment bias) standard adjustment (No . 302) dur ing AE mode • copy density (de v elopment bias) slope adjustment (No . 303) dur ing AE [...]

III. DISASSEMBL Y AND ASSEMBL Y This section e xplains mechanical characteristics and descr ibes how to disassemble/assemb le the machine. Be sure to obser v e the f ollowing when disassemb ling/assembling the machine: 1. Disconnect the pow er plug bef ore star ting the work. 2. Unless otherwise shown, assemb le the par ts by re versing the steps g[...]

6) Disconnect the connectors e , r . Figure 4-302 7) Remov e the screw t , and disconnect the connector y . 8) Pull the fluorescent lamp u slowly to ward the front to detach. Figure 4-303 Caution: Do not touch the fluorescent lamp . (Use lint-free paper .) COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JA[...]

9) Detach the fluorescent lamp heater i from the fluorescent lamp . Figure 4-304 2. P oints to Note When Attaching the Fluorescent Lamp Heater/Scanning Lamp • Attach the heater to the lamp as follo ws: Figure 4-305 Caution: Do not touch the fluorescent lamp . (Use lint-free paper .) Do not bloc k the light-emitting por tion by the fluorescent lam[...]

Attach the scanning lamp so that its light-emitting por tion (open side) is to the left when view ed from the front of the copier as shown in Figure 4-306. Figure 4-306 (front vie w) Caution: Do not touch the fluorescent lamp . (Use r int-free paper) Be sure to adjust the gain and AE whene ver y ou hav e replaced the fluorescent lamp . (See p. 10-1[...]

Reference: The fluorescent lamp heater will not operate unless the copier’ s heater switch is tur ned on. 3. Detaching the Blank Exposure Assembly 1) Open the front cov er . 2) Pull the copier’ s open/close le v er to open the copier . 3) Detach the inside cov er . 4) Detach the e xhaust f an and Dr um car tr idge. (See “Detaching the Exhaust[...]

4. Detaching the Blank Exposure Lamp 1) Detach the blank e xposure assembly . (See “3. Detaching the Blank Exposure Assembly on p . 4-34. ”) 2) Remov e the four scre ws q , and disconnect the connector w . Figure 4-310 3) Disconnect the connector e . Figure 4-311 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMP[...]

4) Remov e the three screws r , and detach the b lank exposure lamp t . Figure 4-312 5. Detaching the Blank Shutter Solenoid 1) Detach the blank e xposure assembly . 2) Detach the blank shutter upper plate , and disconnect the connector q . (See “3. Detaching the Blank Exposure Assembly on p . 4-34. ”) 3) Remov e the E-r ing w , and detach the [...]

6. P ositioning the Blank Shutter Solenoid Adjust the position of the solenoid so that the bottom A is 7.7 ±0.5 mm on both sides of the shutter when the solenoid is mov ed in the direction of activation. When taking measurements, do not push do wn the shutter . After adjustments, mak e sure that the solenoid mov es smoothly . Figure 4-314 a Figure[...]

7. Routing the Blanking Cable Figure 4-315 8. P ositioning the Left/Right Margin T ur n the blanking shutter adjusting scre w on the copier’ s front side plate shown in Figure 4-316 so that the standards are met. q clockwise turn mov es the margin to the front. w counterclockwise turn mov es the margin to the rear . e a full tur n mov es about 1 [...]

B. Drum Unit 1. Detaching the Drum Unit 1) Open the front door . 2) Pull out the de veloping assemb ly releasing le ver q to ward the front, and turn it clockwise . Figure 4-317 3) Open the copier’ s top unit. 4) T ur n the knob w countercloc kwise to detach. 5) Pull out the drum unit e toward the front. Figure 4-318 COPYRIGHT © 1997 CANON INC. [...]

Caution: T ake care not to damage the photosensitiv e dr um. The photosensitiv e drum is highly susceptible to light, and e xposure ev en to room lighting can lead to white spots or blac k bands on the copies. As a rule, do not tur n on the copier with the drum unit removed; otherwise , the registration roller and the tr ansf er guide will interf e[...]

C. Primar y Cor ona Assembl y 1. Detaching the Primary Corona Assembl y 1) Detach the drum unit. 2) Slide the lock q of the top of the drum unit in the direction of the arrow . Figure 4-319 3) Detach the primar y corona assemb ly unit w together with the holder while rotating it in the direction of the arrow . Figure 4-320 COPYRIGHT © 1997 CANON I[...]

2. Cleaning the Cleaning Pad and the Primary Corona Roller 1) Detach the primar y corona unit. 2) Place the primar y corona assemb ly as shown in the figure , and clean the cleaning pad e with a cotton wad r or f olded lint-free paper . Caution: • Dr y-wipe only . Do not use water , alcohol, or solvent. • Be sure to use strokes in one direction[...]

3. P ositioning the Solenoid for the Primary Charging Roller Make adjustments b y loosening the two screws used to fix the solenoid e in place and moving the solenoid e into the direction of arro w B so that r in Figure 4-323 is 4.0 ±0.2 mm when the joint q is butted against point a of the solenoid suppor t w . Figure 4-323 Caution: Y ou must make[...]

D . T ransfer Char ging Assembl y 1. Detaching the T ransfer Roller 1) Open the front door . 2) Open the copier’ s top body . 3) Detach the static eliminator . 4) Detach the bushing q , and lift the transf er roller w to detach. Figure 4-324 Caution: Do not touch the surf ace of the roller . Do not soil the surf ace of the roller . 2. Attaching t[...]

5) Detach the transf er roller and the static eliminator . 6) Detach the transf er guide. 7) While butting the tw o heaters against the transf er guide as shown in Figure 4-326, fix them in place using two scre ws e ; then, fix the har ness using two har ness bands r (front, rear). 8) Fix the har ness with two SK binders t (front, rear) in place , [...]

9) Connect the connector y as shown in Figure 4-328. Figure 4-328 Caution: Make sure that the spring at the rear is securely in the groo v e when attaching the transf er guide to the copier after attaching the dr um heater . COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 4 IMA GE FORMA TION[...]

E. Developing System 1. Removing the Developing Assemb ly 1) Open the copier’ s front door . 2) Operate the open/close le ver to open the top body . 3) T ur n the loc king le v er q cloc kwise to unlock the de v eloping assembly . 4) Remov e the screw w . 5) Pull the de veloping assemb ly e slowly to the front. Figure 4-329 2. Removing the Blade [...]

3) Place a newspaper or the lik e on the floor or a desk top, and pour out the toner from the de veloping assemb ly . 4) Remov e the two screws e , and remov e the blade assemb ly* r . * consisting of the blade and its mount. Figure 4-331 3. Removing the Developing Cylinder Side Seal 1) Remov e the dev eloping assembly from the copier . 2) Remov e [...]

4) Remov e the three screws e , and remo v e the ter minal r , roll case t , and roll y . Figure 4-333 5) Remov e the three E-r ings u , and gear i , gear o , and gear !0 . Figure 4-334 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 4 IMA GE FORMA TION SYSTEM 4-49 y e e t r u u !0 i o[...]

6) Remov e the screw !1 , and remo v e the butting roll !2 and roll case !3 . Figure 4-335 7) Remov e the dev eloping cylinder !4 . Figure 4-336 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 4 IMA GE FORMA TION SYSTEM 4-50 !1 !2 !3 !4[...]

8) Remov e the side seal !5 . (both sides) Figure 4-337 Figure 4-338 4. Installing the Side Seal and the Blade Assembly 1) Clean the area where the side seal will be installed with alcohol. 2) Attach the side seal as indicated in Figure 4-339. Figure 4-339 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JA[...]

3) Check that the side seal and the container are in firm contact. 4) Push the de v eloping blade unit attachment section all the w a y against the upper side and secure it with the screw . Figure 4-340 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 4 IMA GE FORMA TION SYSTEM 4-52 * Some sp[...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 5 PICK-UP/FEEDING SYSTEM I. PICK-UP/FEEDING SYSTEM ............5-1 A. Outline ...........................................5-1 II. PICK-UP OPERA TION (COPIER) ......5-3 A. Outline ...........................................5-3 B. Sequence of Oper[...]

I. PICK-UP/FEEDING SYSTEM Figure 5-101 A. Outline The NP6218 uses center ref erence, in which cop y paper is mov ed through the center of the pick-up/f eeding path f or stab le pick-up/f eeding operation. Pick-up oper ation may be the cassette 1 pic k-up from the copier , cassette 2/3 pick- up from the Cassette f eeding Module-B2/A2 and multifeeder[...]

T able 5-101 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 5 PICK-UP/FEEDING SYSTEM 5-2 Sensor No . PS4 PS5 PS6 PS7 PS8 PS1 CU PS2 CU PS3 CU PS4 CU Name Multif eeder paper sensor Cassette paper sensor Registration sensor Separation sensor Deliv er y sensor Cassette 2 v er tical path sensor[...]

II. PICK-UP OPERA TION (COPIER) A. Outline When the pick-up clutch (CL2 or CL3) turns on while the main motor (M1) is rotating, the pick-up roller rotates to mo ve paper as f ar as the registration roller . The cop y paper is controlled so that its leading edge and the leading edge of the image on the photosensitiv e drum match; then, it is mov ed [...]

B. Sequence of Operations (pick-up/feeding assemb ly; A4, 2 copies) Figure 5-202 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 5 PICK-UP/FEEDING SYSTEM 5-4[...]

III. PICK-UP FR OM THE CASSETTE FEEDING MODULE-A2 A. Pick-Up Operation When the pic k-up clutch (CL1cu, CL2cu) tur ns on while the cassette unit motor (M1cu), the pick-up roller starts to rotate to pick up cop y paper ; the paper is then mov ed to the registration roller b y the v er tical path roller . (The sequence that f ollows is the same as wh[...]

B. Sequence of Operations (cassette 2; A4, 2 copies) Figure 5-302 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 5 PICK-UP/FEEDING SYSTEM 5-6 INTR SCFW SCRV SCFW SCRV LSTR STBY Copy Start key ON Cassette feeding unit Copier Cassette 2 pick-up clutch (CL1cu) Cassette 2 vertical path sensor ([...]

IV . MUL TIFEEDER A. Outline The multif eeder is designed to pick up paper loaded on its tra y and is capable of continuous pic k-up operation. P aper on the tra y is detected b y the multif eeder sensor (PS5). P aper loaded on the tra y is b utted against the pick-up roller b y the paper guide plate; the drive from the main motor (M1) is tr ansmit[...]

B. Identifying the Siz e of P aper on the Multifeeder The width of cop y paper is identified by a v ariable resistor (VR1) which operates in response to the location of the slide guide, which is adjusted b y the user to suit the size of paper . The identified width of cop y paper is used f or blank e xposure control. The length of paper when the mu[...]

C. Sequence of Operations (multifeeder; A4, 2 copies) Figure 5-403 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 5 PICK-UP/FEEDING SYSTEM 5-9 INTR SCFW SCRV SCFW SCRV LSTR Copy Start key ON Multifeeder pick-up solenoid (SL2) Multifeeder pick-up clutch (CL3) Pre-registration sensor (PS6) Re[...]

V . IDENTIFYING THE CASSETTE SIZE When a cassette is set in the cassette holder , appropriate photointerr upters (Q651, Q652, Q653, Q654) tur n on or off . The microprocessor on the DC controller PCB identifies the presence/absence of a cassette based on the combinations of the photointerrupters which are either on or off (T able 5-501); accordingl[...]

T o change the cassette size , you must not only mo v e the guide plate (horizontal, v er tical) inside the cassette to suit the copy paper b ut also mov e the paper size le v er located tow ard the front of the cassette (Figure 5-501) to the left or right so that the arrow points to the appropriate paper size. Caution: A discrepancy between the si[...]

VI. IDENTIFYING J AMS As many as six (3 in the cassette f eeding unit) are used to monitor the mov ement of cop y paper : • registration sensor (PS6) • separation sensor (PS7) • delivery sensor (PS8) A jam is identified in ter ms of the presence/absence of paper at the respectiv e sensors at such times as stored in the microprocessor . The co[...]

B. Pre-Registration Timing Jam Cop y paper reaches the registration sensor (PS6) bef ore a specific period of time after the pick-up clutch (CL2) has gone on because of f eeding problems . Figure 5-602 Pre-Registration Timing Jam Sequence C. Pre-Registration Stationar y Jam Cop y paper does not mo v e past the registration sensor (PS6) within a spe[...]

D . Separation Dela y Jam Cop y paper does not reach the separation sensor (PS7) within a specific per iod of time after the registration clutch (CL1) has gone on because of f eeding problems . Figure 5-604 Separation Delay Jam Sequence E. Separation Stationary Jam Cop y paper does not move past the separ ation sensor (PS7) within a specific period[...]

F . Delivery Dela y Jam Cop y paper does not reach the deliver y sensor (PS8) within a specific per iod of time after it has mov ed past the separation sensor (PS7) because of f eeding prob lems. Figure 5-606 Delivery Delay Jam Sequence G. Deliver y Stationary Jam Cop y paper does not mov e past the deliv er y sensor within a specific per iod of ti[...]

VII. DISASSEMBL Y AND ASSEMBL Y This section e xplains mechanical characteristics and descr ibes how to disassemble/assemb le the machine. Be sure to obser v e the f ollowing whene ver disassemb ling/assembling the machine: 1. Disconnect the pow er plug bef ore star ting the work. 2. Unless otherwise shown, assemb le the par ts by re versing the st[...]

3) Open the low er right cov er . 4) Remov e the two screws w , and pull out the paper guide plate tow ard the front. Figure 5-702 Note: Y ou will hav e sufficient access to the pick-up roller and the b ushing at the rear in this condition. 5) Push in the pick-up roller e from the direction of step 4) tow ard the rear , and remov e the bushing r wh[...]

Figure 5-704 6) Push in the b ushing t at the rear tow ard the front, and lower the spring pressure to remov e the pick-up unit to ward the left of the copier . Figure 5-705 Note: When removing the pic k-up roller Assembly , separate the r ight side blac k bushing from the ke y . COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED I[...]

Figure 5-706 Caution: Check that the paper registr ation sensor (PS 6) is properly seated after this procedure is completed. 2. Detaching the Pick-Up Roller 1) Detach the pick-up roller unit. (See “1. Detaching the Pic k-Up Roller Unit” on p . 5- 14.) 2) Remov e the E-r ing q and the E-ring w ; then, pull out the pick-up roller e together with [...]

3. P oints to Note When Attaching the Pic k-Up Roller When attaching the pick-up roller q , attach it so that the side w shown in Figure 5- 708 is tow ard the rear . Figure 5-708 4. Detaching the Pick-Up Clutch 1) Detach the main motor unit. (See “1. Detaching the Main Motor Unit” on p . 7-11.) 2) Remov e the two screws q , and detach the conne[...]

3) Disconnect the connector e , and remov e the clip r ing r ; then, detach the pic k-up clutch t . Figure 5-710 5. Detaching the Separation Pad 1) Open the right door . 2) Remov e the two screws q , and detach the separation co v er w . Figure 5-711 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) C[...]

3) Remov e the two screws e , and detach the separation pad unit r . Figure 5-712 6. Adjusting the Left/Right Registration Make adjustments so that the position of the image is as sho wn in Figure 5-714 when the T est Sheet is copied in Direct. a. Pick-Up fr om the Cassette T ur n the scre w q shown in Figure 5-713 to adjust the position of the cas[...]

B. Multifeeder Assembl y 1. Detaching the Multifeeder Assembl y 1) Open the right door . 2) Remov e the two screws q , and shift the multif eeder assembly w to ward the front to detach. Figure 5-715 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 5 PICK-UP/FEEDING SYSTEM 5-23[...]

2. Detaching the Multifeeder Pick-Up Roller Unit 1) Open the right door . 2) Remov e the E-r ing q , and pull out the b ushing w . 3) Remov e the two screws e . Figure 5-716 4) Remov e the screw r , and detach the roller co v er t . Figure 5-717 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTE[...]

5) Shift the multif eeder pick-up roller unit y to ward the rear to detach. Figure 5-718 3. Detaching the Multifeeder Pick-Up Roller 1) Detach the multif eeder pic k-up roller unit. (See “2. Detaching the Multif eeder Pick-Up Roller Unit on p . 5-22. ”) 2) Remov e the stop r ing q (plastic), and pull out the pic k-up roller w together with the [...]

4. P oints to Keep Note When Attaching the Multif eeder Pic k-Up Roller When attaching the multif eeder pic k-up roller q , mak e sure that the side with a cross w on the collar is tow ard the rear . Figure 5-720 5. Detaching the Separation Pad 1) Open the upper right door . 2) Remov e the two screws q , and detach the separation pad w . Caution: A[...]

6. Detaching the Multifeeder Drive Unit 1) Detach the multif eeder assembly . (See “1. Detaching the Multifeeder Assemb ly on p . 5-21. ”) 2) Detach the connector mount. 3) Remov e the screw q . Figure 5-722 4) Remov e the screw w , and disconnect the connector e ; then, detach the multif eeder drive unit r . Figure 5-723 COPYRIGHT © 1997 CANO[...]

7. Detaching the Multifeeder Clutch 1) Detach the multif eeder dr iv e unit. (See “6. Multif eeder dr ive Unit on p . 5-25. ”) 2) Remov e the E-r ings qw and scre ws ert ; then, detach the suppor t mount. 3) Detach the multif eeder pick-up clutch y . Figure 5-724 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMP[...]

8. P ositioning the Multifeeder Assembl y (paper guide plate cam) T emporarily fix the screw equipped with a he x nut on the spring clutch assembly , and rotate the control ring. Make adjustments so that the hole in the cam and the hole in the multif eeder driv e unit match as shown in Figure 5-725 when the cla w is engaged with the solenoid plate;[...]

9. Adjusting the Left/Right Registration If the right/left registration is not correct when copies are made using the multif eeder , loosen the screw q , and adjust the position of the tra y . Figure 5-726 10. P oints to Note When Attaching the Multifeeder Assemb ly Rac k Plate Attach the rac k plate of the multif eeder to the pulley while both its[...]

C. Registration Roller Assembly 1. Detaching the Registration Clutch 1) Detach the connector cov er or the lattice connector 2) Remov e the clip r ing q , and disconnect the connector w ; then, detach the registration clutch e . Figure 5-727 2. Detaching the Upper Registration Roller 1) Detach the registration clutch. (See “1. Detaching the Regis[...]

Figure 5-729 Caution: T ake care not to misplace the springs (front, rear). 3) Lift the upper registration roller e to detach. Figure 5-730 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 5 PICK-UP/FEEDING SYSTEM 5-32[...]

3. Detaching the Lower Registration Roller 1) Detach the upper registration roller . (See “2. Detaching the Upper Registration Roller on p . 5-29. ”) 2) Open the low er right door , and remov e the two scre ws q to shift the pick-up guide w tow ard the r ight side of the copier . Figure 5-731 3) Remov e the E-r ing e (front), and shift the b us[...]

D . Feeding Assemb ly Be sure to detach the car tr idge bef ore detaching the f eeding assembly . 1. Detaching the Feeding Belt 1) Detach the low er fixing unit. (See “8. Detaching the Low er Fixing Unit” on p . 6-23.) 2) Remov e the three screws q , and shift the f eeding retention plate w . Figure 5-733 3) Disconnect the connector e , and shi[...]

4) Detach the f eeding spacer r by pulling it tow ard the fixing assembly . Figure 5-735 5) Detach the static eliminator . 6) Detach the f eeding spacer t from the hook (arrow). Figure 5-736 Caution: T ak e care not to touch the transf er roller . Do not damage the area where the f eeding spacers are in contact. COPYRIGHT © 1997 CANON INC. CANON N[...]

E. Cassette Feeding Module 1. Detaching the Copier from the Cassette Feeding Module 1) Disconnect the copier’ s pow er plug. 2) Disconnect the connector q of the cassette f eeding module. Figure 5-737 3) Hold the copier’ s grips, and detach the copier from the cassette f eeding module. 2. Detaching/Attaching the Pick-Up Roller See p . 5-14 “1[...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 6 FIXING SYSTEM I. BASIC OPERA TIONS .........................6-1 A. Outline ...........................................6-1 B. Controlling the Fixing Heater T emperature ..................................6-3 C . Controlling the Supply P ower f [...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 6 FIXING SYSTEM 6-1 I. B ASIC OPERA TIONS A. Outline The drive roller of the fixing assemb ly is driven b y the main motor (M1). When the drive roller rotates , the fixing film rotates and, in conjunction, the pressure roller rotates. P ar t of[...]

Figure 6-102 PWSW* Relay (RL101) +5V Composite power supply PCB Thermal fuse FU1 Fixing heater end temperature detection TH2 TH2 TH1 TH1 Fixing heater H1 Fixing heater temperature etection Heater ON detection PCB Fixing heater overheating detection circuit Fixing heater end overheating detection circuit HTNG Micro- processor HTRD HTON* DC controlle[...]

B. Controlling the Fixing Heater T emperature The fixing heater remains off while the copier is in standb y state. T o prev ent fixing f aults caused by low temper ature, its temper ature is controlled in any of the f ollowing three modes depending on the temperature at the time cop ying is star ted (as measured by the main thermistor TH1) and the [...]

Reference: Nor mally , control 2 is used. Use control 1 to increase the control temperature if a fixing f ault occurs; or use control 3 to lower the control temperature if offset occurs . (See the p . 10-32.) Figure 6-103 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 6 FIXING SYSTEM 6-4[...]

C. Controlling the Suppl y P ower f or the Fixing Heater The temperature of the fixing heater is controlled b y controlling the power supplied to the fixing heater . The resistance of the plane-shaped heater used as the fixing heater ma y sho w some v ariation depending on which production lot it comes from. F or this reason, whenev er you ha v e r[...]

D . Detecting Overheating at the End of the Fixing Heater A sub ther mistor (TH2) is provided at the end (rear) of the copier’ s fixing heater to monitor ov erheating. This consideration to pre vent damage to the fixing film caused b y ov erheating of the area where paper (smaller than B4) does not come into contact. When TH2 registers 250°C or [...]

F . Correcting Displacement of the Fixing Film 1. Outline The fixing film at times becomes displaced tow ard the front or rear as it keeps tur ning. T o correct such displacement, the copier is equipped with a correction mechanism. The control is e xecuted b y the fixing film sensor (PS9), which detects the position of the film, and the fixing film[...]

The fixing film sensor (PS9) is used to detect the position of the fixing film and f ound at the end of the film. The rear (sensor side) of the fixing film is provided with a cut as sho wn in Figure 6- 106 so that the fixing film sensor continuously goes on and off . Nor mally , the on and off per iods of the sensor are identical as long as the fix[...]

Displacement of the fixing film is ph ysically corrected b y the fixing film motor (M4). When it identifies displacement of the fixing film, the DC controller rotates the fixing film motor to mov e the rear of the tension roller up and down, thereb y moving the fixing film to the center to correct the displacement. When the fixing film becomes disp[...]

2. Controlling the Fixing Film Motor The fixing film motor is a stepping motor , and is rotated by the driv e signal FMD and pulse signals FF A, FF A*, FFB, and FFB*. When FMD is ‘1’, the drive v oltage FFCA and FFBC are imposed; the motor star ts to rotate when pulses are applied to each phase in specific sequence. The motor is rotated in re v[...]

II. DISASSEMBL Y AND ASSEMBL Y This section e xplains mechanical characteristics and descr ibes how to disassemble/assemb le the machine. Be sure to obser v e the f ollowing whene v er disassemblig/assemb ling the machine: 1. Disconnect the power plug bef ore star ting the wor k. 2. Unless otherwise shown, assemb le the par ts by re versing the ste[...]

2. Detaching the Upper Fixing Unit 1) Open the copier’ s front cov er . 2) Open the copier’ s top body . 3) Remov e the two screws q , and detach the fixing assembly co ver w . Figure 6-202 4) Disconnect the f our connectors e , and remov e the screw r . Figure 6-203 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN [...]

5) Open the fixing shutter t , and put the scre w remov ed in step 4) into the hole y in the front side plate. Figure 6-204 6) Pull out the upper fixing unit tow ard the rear . Caution: Do not touch the fixing film. 3. Detaching the Fixing Film, T ension Roller , Drive Roller , Fixing Cleaning Brush, and Fixing Heater Unit Caution: Bef ore going th[...]

Figure 6-205 3) Remov e the two E-rings e and the two washers r . 4) Remov e the screw t . Figure 6-206 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 6 FIXING SYSTEM 6-14 q w er t[...]

5) Release the pressure by positioning the scre w t as shown in Figure 6-207. 6) Remov e the screw y , and detach the b ushing u . Figure 6-207 7) Remov e the screw i , and detach the b ushing o ; then, detach the upper fixing top side plate !0 . Figure 6-208 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U[...]

8) Release the pressure by positioning the scre w y and the bushing (rear) as sho wn in Figure 6-209. Figure 6-209 9) Pull out the fixing film !2 tow ard the front. 10) Detach the tension roller !3 . Figure 6-210 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 6 FIXING SYSTEM 6-16 y !1 !2 !3[...]

11) Remov e the screw !4 , and detach the fixing film sensor !5 . Figure 6-211 12) Remov e the E-r ing !6 . Figure 6-212 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 6 FIXING SYSTEM 6-17 !4 !5 !6[...]

13) Remov e the washer !7 and the bushing !8 , and detach the driv e roller !9 . Figure 6-213 14) Lif e the deliv er y side, and detach the fixing cleaning brush @0 . Figure 6-214 15) Remov e the two screws @1 , and detach the co v er @2 . Figure 6-215 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON)[...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 6 FIXING SYSTEM 6-19 16) Remov e the two screws @3 , and detach the fixing film motor unit @4 . Figure 6-216 17) Remov e the screw @5 , and detach the cov er @6 . 18) Remov e the screw @7 , and disconnect the heater connector @8 . Caution: If y[...]

4. P oints to Note When Attaching the Fixing Film • Make sure that the cut off is to ward the rear . • Make sure that the front side is aligned with the groo ve of the heater . Figure 6-218 5. P oints to Note When Attaching the Heater Connector • When attaching the heater connector to the fixing heater , take care not to damage the heater . ?[...]

6. P oints to Note When Replacing the Fixing Upper Unit • If you ha ve replaced the upper fixing unit, y ou must store the resistance of the heater in ser vice mode (No . 304; see p. 10-31.) Caution: Do not touch the surf ace of the heater . 7. Adjusting the Fixing Film Drive Roller Pressure If a fixing f ault occurs, be sure to go through the f [...]

13) Press ‘4’ on the ke ypad; when the display indicates ‘404’, press the Star t ke y . • The copier enters fixing tension roller mode (404). • The fixing tension roller becomes fixed, and the fixing film rotates idly . • The count indicator indicates how long the fixing film sensor has remained on. Caution: If the cop y count indicat[...]

8. Detaching the Lo wer Fixing Unit 1) Detach the deliv er y roller . (See “1. Detaching the Delivery Roller . ” on p . 6-28.) 2) Detach the deliv er y cov er . 3) Remov e the screw q , and detach the fixing shutter open/close b lock w . Figure 6-222 4) Remov e the E-r ing e , and detach the low er fixing unit r . Figure 6-223 Caution: Do not t[...]

9. Detaching the Separation Cla w/Lower Fixing Cla w and Fixing Cleaning Roller 1) Detach the front door . 2) Remov e the screw q , and detach the separ ation claw unit w . Figure 6-224 3) Detach the separation cla w e from the separation claw unit. Caution: T ake care not to misplace the spring. 4) Detach the low er fixing roller r together with t[...]

5) Detach the bushing y f ound at the front, and detach the HIGH-TEMPERA TURE W ARNING cov er u . Figure 6-226 6) Lift the fixing cleaning roller to detach. 10. Adjusting the Lower Fixing Roller Nip If fixing f aults occur , make the f ollowing adjustments . The nip is correct if as shown belo w; otherwise, turn the bolt to make adjustments . Figur[...]

a. Measuring the Nip Measure the nip immediately after tur ning on the copier bef ore the beginning of a wor k d ay . 1) Open the cop yboard cover , and make a solid b lack cop y in A4. 2) Place the cop y in the multif eeder with the solid blac k face up . 3) Press the ser vice mode s witch (SW302) using a he x key . • The copier enters ser vice [...]

B. Deliver y Assembl y 1. Detaching the Deliv er y Roller 1) Open the copier’ s top body . 2) Remov e the E-r ing q . 3) Shift the bushing w (rear) and bushing e (front); then, detach the deliv er y roller r . Figure 6-228 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 6 FIXING SYSTEM 6-2[...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MAR. 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 6 FIXING SYSTEM 6-28[...]

CHAPTER 7 EXTERNALS/A UXILIAR Y MECHANISMS I. PO WER SUPPL Y ...............................7-1 A. Outline ...........................................7-1 B. P ower Supply Circuit Assemb ly .....7-2 C . Detecting Errors in the P ower Supply PCB ...................................7-4 D . Protection Mechanisms f or the P ower Supply Circuit ..........[...]

CHAPTER 7 EXTERNALS/A UXILIARY MECHANISMS COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 7-1 I. PO WER SUPPL Y A. Outline Figure 7-101[...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 7-2 CHAPTER 7 EXTERNALS/A UXILIARY MECHANISMS B. P ower Supply Cir cuit Assembl y The copier’ s pow er supply assemb ly is a composite pow er supply circuit which uses a single main transf or mer (T101) as the source of DC power , high-voltage po wer[...]

Figure 7-102 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 7-3 CHAPTER 7 EXTERNALS/A UXILIARY MECHANISMS[...]

C. Detecting Error s in the P ower Suppl y PCB The microprocessor (Q512) on the composite pow er supply PCB either displa ys an error message on the displa y by communicating with the DC controller or flashes LED501 to indicate the presence of an error if any of the f ollowing is identified. 1. Communication Err or between DC Controller PCB and Com[...]

CHAPTER 7 EXTERNALS/A UXILIARY MECHANISMS D . Pr otection Mechanisms f or the P o wer Supply Cir cuit The composite pow er supply PCB is equipped with an ov ercurrent detection circuit; if a shor t circuit occurs in a load for some reason, the protection mechanism is activ ated to stop the output. When the output is cut out, you ma y reset the outp[...]

II. DISASSEMBL Y AND ASSEMBL Y This section e xplains mechanical characteristics and descr ibes how to disassemble/assemb le the machine. Be sure to obser v e the f ollowing whene ver disassemb lig/assembling the machine: 1. Disconnect the power plug bef ore star ting the wor k. 2. Unless otherwise shown, assemb le the par ts by re versing the step[...]

o Right cov er !2 Low er right cov er !0 Upper rear cov er !3 Low er right back !1 Rear cov er Figure 202 cover Note: Detach the cov ers when cleaning, inspecting, or repair ing the inside of the copier as necessar y . Cov ers that may be detached merely b y removing their respectiv e mounting scre ws are omitted from the discussion. Caution: When [...]

When attaching the cop yboard glass, make sure that it is firmly in contact with the v er tical size plate without a gap to pre vent intrusion of foreign matter . Figure 7-204 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 7-8 CHAPTER 7 EXTERNALS/A UXILIARY MECHANISMS[...]

B. Control P anel 1. Detaching the Contr ol Panel 1) Detach the cop yboard glass. 2) Detach the upper left cov er . 3) Open the front door . 4) Pull the copier’ s open/close le v er to open the copier . 5) Detach the upper rear cov er . 6) Detach the right cov er . 7) Detach the left cov er . 8) Remov e the five scre ws q , and detach the inside [...]

C. F ans 1. Detaching the Exhaust F an 1) Open the front door . 2) Pull the copier’ s open/close le v er to open the copier . 3) Detach the DC controller PCB . (See “1. Detaching the DC Controller PCB” on p . 7-17.) 4) Remov e the screw q at the copier’ s rear , and remove the tw o screws w at the front. Figure 7-208 Figure 7-209 5) Pull ou[...]

D . Main Motor/Main Drive Assemb ly 1. Detaching the Main Motor Unit 1) Detach the rear cov er . 2) Disconnect the two connectors q , and remo ve the three scre ws w ; then, detach the main motor unit e . Figure 7-212 2. Detaching the Main Drive Assembl y 1) Open the front door . 2) Pull out the drum car tr idge. 3) Detach the multif eeder unit. 4)[...]

7) Remov e the screw r , and detach the composite po wer supply suppor t plate t . Figure 7-214 8) Detach the belt from the belt tensioner y of the fixing drive assemb ly . Figure 7-215 9) T ur n the pulle y i clockwise , and detach the belt o . Figure 7-216 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U [...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 7-13 CHAPTER 7 EXTERNALS/A UXILIARY MECHANISMS 10) Remov e the E-r ing !0 and clip ring !1 ; then, detach the bushing !2 . In this condition, detach the gear and pulley !3 from the main driv e assemb ly . Figure 7-217 3. Routing the Drive Belt Route th[...]

E. Cassette unit 1. Detaching the Pic k-Up Drive Unit 1) Detach the rear cov er and r ight cov er . 2) Remov e the screw q . Figure 7-219 3) Remov e the screw w , and detach the harness guide e . Figure 7-220 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 7-14 CHAPTER 7 EXTERNALS/A UXILIARY MECHANI[...]

4) Remov e the f our screws r , and disconnect the two connectors t ; then, detach the pick-up driv e unit y . Figure 7-221 2. Detaching the Cassette Motor 1) Detach the rear cov er . 2) Remov e the tw o screws q , and disconnect the connector w (J114); then, detach the motor e . Figure 7-222 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1[...]

3. Detaching the Cassette Driver PCB 1) Detach the rear cov er . 2) Disconnect all connectors from the cassette driver PCB q . 3) Remov e the three screws w , and detach the driv er PCB q . Figure 7-223 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 7-16 CHAPTER 7 EXTERNALS/A UXILIARY MECHANISMS q [...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 7-17 CHAPTER 7 EXTERNALS/A UXILIARY MECHANISMS F . DC Contr oller PCB 1. Detaching the DC Controller PCB 1) Disconnect the connector of the DC controller . 2) Remov e the four scre ws q , and detach the DC controller PCB together with its mount. Figure[...]

G. Composite P ower Suppl y PCB 1. Detaching the Composite P ower Suppl y PCB 1) Detach the low er rear cov er and the delivery cov er . 2) Remov e the screw q , and detach the s witch suppor t plate w . 3) Remov e the screw e , and detach the po wer cord co v er 1 r . Figure 7-225 4) Remov e the screw t , and shift the po wer cord co v er 2 y . 5)[...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 7-19 CHAPTER 7 EXTERNALS/A UXILIARY MECHANISMS 6) Remov e the three screws !0 , and detach the pow er cord mount !1 . Figure 7-227 7) Disconnect all connectors from the composite pow er supply PCB. 8) Remov e the screw !2 , and detach the grounding wir[...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 7-20 CHAPTER 7 EXTERNALS/A UXILIARY MECHANISMS 2. P oints to Note When Handling the Composite P ower Suppl y PCB • Some capacitors used on the PCB may retain charges e v en when the copier remains off . For this reason, y ou must take care ne ver to [...]

H. AE Sensor PCB 1. P oints to Note When Replacing the AE Sensor • After replacement, perform the f ollowing; see p . 10-11: q Adjust AE. I. Intensity Sensor PCB 1. P oints to Note When Replacing the Intensity Sensor • After replacement, perform the f ollowing; see p . 10-11: q Adjust the intensity of the scanning lamp; and w Adjust AE. COPYRIG[...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MAR. 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 7-22 CHAPTER 7 EXTERNALS/A UXILIARY MECHANISMS[...]

CHAPTER 8 INST ALLA TION I. SELECTING THE SITE ......................8-1 II. UNP ACKING AND INST ALLING THE COPIER ......................................8-2 A. Unpacking and Remo ving Fixings ...........................................8-2 B. T ur ning On the Copier ...................8-5 C . Checking the Images and Operations ......................[...]

CHAPTER 8 INST ALLA TION COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 8-1 I. SELECTING THE SITE K eep the follo wing in mind when selecting the site of installation; if possible , pa y a visit to the user’ s bef ore the deliver y of the machine. 1. The site must pro vide a pow er outlet that ma[...]

II. UNP A CKING AND INST ALLING THE COPIER When a metal par t is brought in from a cold to warm environment, droplets of water can de velop on the surf ace of the par t. This phenomenon is called condensation, and condensation in a copier can lead to f aulty images. If the copier has been mov ed from a cold to warm place, lea v e it alone f or abou[...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 8-3 CHAPTER 8 INST ALLA TION Wo r k Open the cop yboard cov er , and remov e the protective sheet. Open the front cov er , and push the le v er f ound on the left side up in the direction of the arrow to open the copier’ s top body . Pull up the spac[...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 8-4 CHAPTER 8 INST ALLA TION Wo r k Pull the de v eloping locking le v er tow ard the front, and turn it clockwise to release it. Remov e the knob , and remov e the dummy drum from the copier . (K eep the knob for later .) Remov e the screw , and remov[...]

B. T urning On the Copier Step 1 2 3 4 5 6 7 8 CHAPTER 8 INST ALLA TION COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 8-5 Wo r k Connect the pow er plug to the pow er outlet. T ur n on the power s witch. T ur n off the power s witch. Supply toner according to the instructions given on the toner su[...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 8-6 CHAPTER 8 INST ALLA TION Wo r k Select ser vice mode No . 313/314, and enter the settings recorded on the drum label. T o select ser vice mode, • Press the ser vice mode s witch (SW302) with a he x key . Select ‘3’ of the mode by pressing ‘[...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 8-7 CHAPTER 8 INST ALLA TION Remarks The copier automatically sets the APVC v alue; it stops in about 23 sec. See “E. Changing the Size . ” • Make sure that the Add P aper message tur ns off . • Make sure that the paper indicator matches with t[...]

C. Checking the Ima ges and Operations COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 8-8 CHAPTER 8 INST ALLA TION Wo r k Place the T est Sheet on the cop yboard, and chec k the copies. Make copies in man ual mode. Make sure that the e xter nal cov ers are free from scratches and def ormations. Cle[...]

D . Attaching the Drum Unit COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 8-9 CHAPTER 8 INST ALLA TION Wo r k Unpack the drum unit, and remov e the light-bloc king sheet. Remov e the pr imar y charging roller releasing spacer . Set the drum unit to the copier , and fix it in position using the kno[...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 8-10 CHAPTER 8 INST ALLA TION E. Changing the Cassette Size Change the cassette size to suit the user’ s needs. 1) Slide the cassette out of the copier . 2) Mov e the length plate inside the cassette to suit the length of the paper size. Figure 8-201[...]

4) Mov e the paper size le ver f ound toward the front of the cassette so that it is aligned with the size of the paper to be used. Figure 8-203 Caution: F ailure to adjust the paper size le ver will lead to jams or soiling. 5) T ak e out the paper size plates f or the cassette, and pic k out the f our plates representing the most frequently used s[...]

6) Set the paper size plates selected in step 4). Figure 8-205 Caution: If you are setting the plate f or the position representing the univ ersal (u) cassette, you m ust perform the work descr ibed for “univ ersal cassette paper size setting (505); see p . 10-44. ■ P oints to Note When Handling the Photosensitive Drum after Installation The co[...]

III. RELOCA TING THE COPIER If you m ust relocate the copier by truck or using other means of transportation, perf or m the follo wing work: COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 8-13 CHAPTER 8 INST ALLA TION Wo r k Mov e the lens to the Direct position. T ake out the drum unit. Fix the sc[...]

IV . REPLA CING THE DRUM UNIT Go through the f ollowing when replacing the dr um unit: COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 8-14 CHAPTER 8 INST ALLA TION Wo r k T ur n off the copier , and open the front door and the copier’ s top unit. Release the de v eloping assembly , and remov e th[...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 8-15 CHAPTER 8 INST ALLA TION Wo r k Fill out the label, and attach it to the drum unit cov er . Lock the de veloping assemb ly , and close the copier’ s top unit. T ur n on the door s witch using the door s witch actuator ; then, shift the pow er s [...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 8-16 CHAPTER 8 INST ALLA TION Wo r k Ex ecute ‘No . 412’ in ser vice mode. • Press the ser vice mode s wicth (SW302), ‘4’ on the ke ypad, AE ke y , ‘1’ and ‘2’ on the ke ypad, and Star t ke y in sequence. Remov e the door switch actua[...]

V . INST ALLING THE CONTROL CARD IV N Caution: Be sure to disconnect the copier’ s pow er plug bef ore star ting the installation work. 1) Open the front cov er 2) Open the copier’ s top body by oper ating its open/close le ver . 3) Detach the front cov er . 4) T ak e out the car tr idge. 5) Detach the inside cov er . 6) Loosen the screw on the[...]

10) Disconnect the copier’ s dummy connector r . Figure 8-503 11) Connect the connector t of the Control Card IV N. Figure 8-504 12) Connect the copier’ s pow er plug, and turn on its power s witch to chec k the oper ation of the Control Card IV N. COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON)[...]

VI. CASSETTE HEA TER KIT 5 INST ALLA TION PR OCE- DURE A. Unpac king Open the shipping bo x, and check to make sure that none of the parts shown in Fig. 8-601 is missing. Figure 8-601 q Cassette Heater ...............................1 t Cord clamp ......................................1 w Mounting plate 1 ..............................1 y Binding s[...]

B. Installation (to a Cassette Feeding Module-A2/B2) 1) Remov e the cassettes and all rear cov ers from the cassette f eeding unit/pedestal. 2) Remov e the copier’ s rear cov er . 3) Install the mounting plate 2 to the cassette heater with two scre ws (b lack; M4 × 6). Figure 8-602 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRIN[...]

4) Inser t the bend found at the rear of the heater into the heater mounting slit in the rear side plate of the cassette f eeding unit/pedestal (bottom holder). Figure 8-603 5) Open the cov er on the front of the cassette f eeding unit/module, and fix the mounting plate 2 in place to the front side plate with two scre ws (white; M3 × 6). Figure 8-[...]

6) Close the cov er . 7) Connect the connector on the rela y har ness to the connector of the cassette heater (rear side plate of the cassette f eeding unit). (Connect the side where the har ness is bundled with a tie-wr ap .) Figure 8-605 8) Install the cord clamp to the hole in the rear side plate of the cassette f eeding unit/pedestal. • Casse[...]

• Cassette Feeding Module-B2 Figure 8-607 9) Lead the other connector on the rela y har ness through the copier’ s bottom plate as shown. Figure 8-608 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 8-23 CHAPTER 8 INST ALLA TION Cord clamp Copier's connector Molded member Copier's base[...]

10) Connect the connector on the rela y har ness with the copier’ s connector . Figure 8-609 11) Fix the rela y har ness in place to the rear side plate with the cord clamp . • Cassette Feeding Module-A2 Figure 8-610 Caution: Make sure that the rela y har ness is outside the area indicated by dashed lines to pre vent it from interf er ing with [...]

• Cassette Feeding Module-B2 Figure 8-611 Caution: Make sure that the rela y har ness is outside the area indicated by dashed lines to pre vent it from interf er ing with the f eet of the cassette. 12) Install the rear cov er of the cassette pedestal and all covers . 13) Install the copier’ s rear cov er . COPYRIGHT © 1997 CANON INC. CANON NP6[...]

VII. INST ALLING THE REMO TE DIA GNOSTIC DEVICE II A. Unpac king Figure 8-701 q RDD ..........................................1 unit t Switch setting label ..................1 pcs. w P ow er Supply Unit .....................1 unit y Grounding wire* .........................1 pc. e Screw (M4 × 6) ...........................4 pcs. u Ferrite core ...[...]

B. Installation to the Copier Caution: This model ma y not be av ailable f or sale in some areas. Caution: K eep the follo wing in mind when installing the RDD to the copier : 1. This Accessor y is to be installed by a qualified personal. 2. Make sure the copier has been properly installed bef ore star ting the work. 3. K eep the copier’ s power [...]

3) Remov e the two scre ws y , and detach the f ace cov er t from the copier’ s rear cov er . Fig. 8-704 4) Connect the cable o on the copier side and the RDD’ s cable i . Note: If a conv ersion connector is f ound on the cable !1 from the copier , remov e it. Fig. 8-705 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP[...]

Fig. 8-706 5) Fix the RDD in place on the copier’ s rear cov er with four scre ws y ; use the screws remov ed from the copier . Modular Jac k on the Right Fig. 8-707 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 8-29 CHAPTER 8 INST ALLA TION i o y y[...]

6) Remov e the slack from the cab le between the copier and the RDD; keep the e xcess cable to the RDD using the harness band !0 . Fig. 8-708 7) Shift bit 4 of the DIP s witch 2 !1 to ON so that the comm unication mode betw een the RDD and the copier is IPC mode. Fig. 8-709 8) If the ROM IC6 !2 is mounted on the RDD’ s PCB, shift bit 7 of the DIP[...]

Fig. 8-710 9) Set the bits of the DIP s witch 3 !4 on the RDD’ s PCB as indicated in the tab le. Fig. 8-711 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 8-31 CHAPTER 8 INST ALLA TION LED1 LED2 LED3 2 1 LED5 LED6 LED4 IC6 SW1 SW4 SW3 6 1 BAT1 CN4 1 2 CN3 CN2 12345678 SW2 !3 !2 LED1 LED2 LED3 2 1[...]

T able 8-701 10) Fit the P ower Supply Unit into the po wer plug, and check that LED 1 !5 (g reen) on the RDD’ s PCB comes on. Fig. 5-712 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 8-32 CHAPTER 8 INST ALLA TION Switch SW3-1 SW3-2 SW3-3 SW3-4 SW3-5 SW3-6 Setting AII OFF ON ON OFF ON OFF – De[...]

11) Reset the RDD’ s RAM. Set the bits on the DIP s witch 2 !6 on the RDD’ s PCB as indicated in the table, and press the push s witch 4 !7 to make sure that LED5 !8 (red) comes on. T able 8-702 Fig. 8-713 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 8-33 CHAPTER 8 INST ALLA TION LED1 LED2 LE[...]

12) After making sure that LED5 !8 (red) has come on, set the bits on the DIP s witch 2 !6 on the RDD’ s PCB as indicated in the tab le, and press the push s witch 4 !7 to make sure that LED5 !8 (red) goes out, indicating that the RAM has been reset. T able 8-703 Fig. 8-714 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JA[...]

13) Shift bit 6 of the DIP s witch 2 !9 on the RDD’ s PCB to OFF . Fig. 8-715 14) Connect the RDD to the telephone line. If you are connecting the RDD on its o wn, connect the modular jack cab le to the RDD’ s connector @0 (LINE). If you will be using the RDD’ s extr a circuit, connect the existing telephone or f ax machine to the RDD’ s co[...]

15) Call up the ser vice station, and request the RDD’ s initial settings. (LED 4 @2 (red) star ts to flash upon receipt.) Fig. 8-717 16) Call up the ser vice station to check if the initial settings ha v e been successfully made; if the attempt has f ailed, reset the RAM once again star ting with step 11) through 13). Important: Y ou must confir[...]

18) Chec k that the communications between the RDD and the copier are e xecuted nor mally . Connect the copier’ s pow er plug, and s witch it on to make sure that LED 2 @5 (orange) flashes . Fig. 8-719 19) Press the copier’ COPY ST AR T ke y to make sure that LED3 @6 (pink) flashes each time a cop y is delivered. Fig. 8-720 COPYRIGHT © 1997 CA[...]

20) Attach the Switch setting label @7 , to the RDD’ s top cov er q ; then, record the setting of each s witch on the label. Fig. 8-721 21) Fix the RDD’ s top cov er q in place using two screws w . (Mak e sure that the P ower Unit’ s cable is fix ed in place on the cable guide inside the RDD and is not tr apped by the top cov er q . COPYRIGHT[...]

CHAPTER 9 MAINTENANCE AND SER VICING I. PERIODICALL Y REPLA CED P ARTS ................................................9-1 A. P eriodically Replaced Parts ...........9-1 II. DURABLES ........................................9-2 A. Copier ............................................9-2 B. Cassette F eeding Module-B2/ Cassette F eeding Module-A2 .....[...]

I. PERIODICALL Y REPLA CED P AR TS Some par ts of the copier must be replaced on a per iodical basis to ensure a specific le vel of perf or mance; replace them as indicated regardless of the presence of visible damage. Plan the replacement to coincide with a scheduled visit. A. P eriodically Replaced P ar ts Note: The abov e values are estimates on[...]

II. DURABLES The par ts shown in the table ma y require replacement because of deterioration or damage ov er the per iod of warr anty; replace them when they f ail using the table as a guide. A. Copier Note: 1. The lif e represents the number of copies actually made using the par t. 2. The abov e v alues are estimates only and subject to change bas[...]

B. Cassette Feeding Module-B2/Cassette Feeding Module-A2 Note: The abov e values are estimates only and subject to change based on future data. COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 9-3 CHAPTER 9 MAINTENANCE AND SER VICING No . 1 2 P ar ts name Pick-up roller Pick-up separ ation pad as of [...]

III. PERIODICAL SER VICING The copier does not ha v e items that require periodical ser vicing; how e ver , it is recommended that the f ollowing work items be performed dur ing any visit to the user’ s. COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 9-4 CHAPTER 9 MAINTENANCE AND SER VICING Wo r [...]

IV . SER VICING CHAR T Caution: Do not use solv ents or oils other than those specified. : clean : replace ✩ : lubricate : adjust : inspector clean COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 9-5 CHAPTER 9 MAINTENANCE AND SER VICING Pa r t s Cop yboard glass Pick-up roller Scanner rail T ransf[...]

V . NO TES ON DRUM KIT Caution: Do NO T throw the drum kits into fire; it can burst or e xplode. Otherwise, dispose of it as nonflammab le mater ial. ! COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 9-6 CHAPTER 9 MAINTENANCE AND SER VICING Pa r t s Low er fixing roller Separation cla w (low er) Fix[...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 10 TR OUBLESHOO TING I. MAINTENANCE AND INSPECTION ..10-3 A. Image Adjustment Basic Procedure ....................................10-3 B. P eriodical Ser vicing .....................10-4 II. ST ANDARDS AND ADJUSTMENTS ..........................[...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 10-1 The troubleshooting procedures in this man ual are prepared in the form of tables , rather than flo w char ts. Study the f ollowing f or an idea of how to consult the tab les. EX. A C power is absent. ■ T o find out the cause (f aulty par t) of [...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MAR. 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 10 TROUBLESHOO TING 10-2[...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 10-3 I MAINTENANCE AND INSPECTION A. Image Adjustment Basic Procedure[...]

B. P eriodical Ser vicing 10-4 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME AU J APON)[...]

II. ST AND ARDS AND ADJUSTMENTS A. Image Adjustment 1. Adjusting the Image Leading Edg e Margin ([3], No. 305; registration ON timing) Activ ate [3] in ser vice mode, and select ‘No . 305’ (leading edge margin adjustment), and make adjustments so that the image position is as indicated in Figure 10-201 when the T est Sheet is copied in Direct. [...]

2. Adjusting the Leading Edg e Non-Image Width ([3], No. 306; blank shutter ON timing) Activ ate [3] in ser vice mode, select ‘No . 306’ (leading edge non-image width adjustment), and make adjustments so that the image leading edge non-image width is as indicated in Figure 10-202 when the T est Sheet is copied in Direct. The copier v aries the [...]

3. Adjusting the Image T railing Edg e Non-Image Width ([3], No. 309; blank shutter timing) T railing Edge Non-Image Width Figure 10-203 Activ ate [3] in ser vice mode, and select ‘No . 309’ (leading edge non-image width adjustment); make adjustments so that the image tr ailing edge non-image width is as indicated in Figure 10-203 when the T es[...]

4. Adjusting the Left/Right Registration Make adjustments so that the position of the image is as indicated in Figure 10-205 when the T est Sheet is copied in Direct. a. Pick-Up from the Cassette T ur n the scre w 1 shown in Figure 10-204 to adjust the position of the cassette hook plate. standard: 0.±1.5 mm clockwise turn: paper mov es in the dir[...]

5. Adjusting the Left/Right Margin (No. 311; left/right margin) Select ‘No . 311’ (left/right margin adjustment); make adjustments so that the left/right margin is 2.5 ±1.5 mm when the T est Sheet is copied in Direct. Y ou must adjust the left/right registration bef ore making this adjustment. Making Adjustments a. Margin (adjusting the width)[...]

Figure 10-209 Caution: After the adjustments (both a and b), tur n on and off the pow er s witch or change the reproduction ratio so that the b lank exposure assemb ly performs home positioning. 6. Adjusting the Scanning Lamp Intensity T ur n VR301 on the DC controller as f ollows whene v er you ha ve replaced the scanning lamp , intensity sensor ,[...]

7. AE Adjustment Adjust the AE mechanism using the f ollowing three service modes: q AE Basic Adjustment No . 410 .............scanner forw ard stop No . 408 ........scanning lamp on check No . 208 .....AE sensor v oltage display No . 301lamp intensity automatic adjustment at time of AE scan w Cop y Density in AE Mode (No. 302) (de veloping bias) r[...]

8) Enter ‘208’ using the ke ypad, and press the star t button. • The displa y indicates ‘208’. 9) Press the Star t ke y . • The displa y indicates ‘0–255’. 10) T ur n VR391 on the DC controller so that the reading on the displa y is ‘100~105’. Figure 10-210 DC Controller PCB 11) T ur n off and on the power s witch. • This tu[...]

b . Cop y Density (de velopment bias) Ref erence P oint Adjustment for AE Mode (No . 302) 1) If the indication is not in the 300’ s , activ ate adjustment mode (ser vice mode) as in the case of ‘No . 301’. 2) Press [2] on the ke ypad. • The copier indicates ‘302’. 3) Press the Star t ke y . • The copier indicates the current setting. [...]

T able 10-201 10-14 CHAPTER 10 TROUBLESHOO TING COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) Function A utomatic lamp intensity adjustment f or AE scans Cop y density (de v elopment bias) ref erence point adjustment f or AE mode Cop y density (de v elopment bias) slope adjustment f or AE mode Des[...]

B. Exposure System 1. Routing the Scanner Drive Cable Route the cable as sho wn b y q through !0 ; then, adjust the cable tension and mirror position as described. Figure 10-211 Caution: When attaching the wire spring, pay attention to the orientation of the spring; see the diagrams belo w . If not attached correctly , its hook tip could interf ere[...]

2. Adjusting the Mirror P osition (optical distance between No. 1 mirror and No. 2/No. 3 mirror) 1) K eep the mirror positioning tool handy . (See “4 Assembling the Mirror P ositioning T ool on P . 10-17. ”) 2) Mov e the No . 1 mirror mount forw ard, and match the long hole in the front side plate and the cable fixing scre w q . Figure 10-213 3[...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 10 TROUBLESHOO TING 10-17 6) Tighten the screw on the pulle y . 7) Detach the positioning tool (FY9-3009). 3. Adjusting the Scanner Cable T ension Mov e the tension plate and tighten the screw w so that the distance across the ends of the cable[...]

4) Tighten the screw . Figure 10-218 5. P oints to Note When Attaching the Fluorescent Lamp Heater/Scanning Lamp • Attach the heater to the lamp as f ollows: Figure 10-219 Caution: Do not touch the fluorescent lamp . (Use lint-free paper .) Do not bloc k the light-emitting por tion by the fluorescent lamp heater . 10-18 CHAPTER 10 TROUBLESHOO TIN[...]

Attach the scanning lamp so that its light-emitting por tion (open side) is to the left when view ed from the front of the copier as shown in Figure 10-220. Figure 10-220 (front vie w) Caution: Do not touch the fluorescent lamp . (Use r int-free paper) Be sure to adjust the gain and AE whene ver y ou hav e replaced the fluorescent lamp . (See P . 1[...]

6. P ositioning the Change Solenoid Make adjustments b y loosening the two scre ws t so that the gear r b utts against the direction of b by the arm e when the steel core q of the solenoid is fully pushed in the direction of B, i.e ., when the E-r ing comes into contact with the solenoid. Figure 10-222 10-20 CHAPTER 10 TROUBLESHOO TING COPYRIGHT ©[...]

C. Image Formation System 1. P ositioning the Blank Shutter Solenoid Adjust the position of the blank shutter solenoid so that the bottom A is 9.5 ±0.5 mm on both sides when the solenoid is mov ed in the direction of ON; tr y not to f orce down the shutter . After adjustments, mak e sure that the solenoid mov es smoothly . Figure 10-223a Figure 10[...]

2. Routing the Blank Shutter Cable Figure 10-224 3. P ositioning the Solenoid for the Primary Charging Roller Loosen the two scre ws used to fix the solenoid e in place, and mov e the solenoid in the direction of B so that the R in Figure 10-225 is 5.5 ±0.2 mm when the joint q is butted against a of the solenoid suppor t plate w . Caution: Be sure[...]

4. After Replacing the Drum Unit Whene ver y ou ha v e replaced the drum unit, enter the date of replacement and the current counter reading on the label (Figure 10-226) that came with the drum unit; attach the label to the front cov er of the ne w drum unit, and perf or m the image basic adjustment procedure. Figure 10-226 5. Attaching the Drum He[...]

7) Fix the har ness in place using two SK binders (WT2-5145; front, rear) t ; then, inser t it into the transf er guide. Caution: When fixing the har ness in place , make sure that the cap por tions of the terminals alter nate; keeping them in par allel will bring them in contact with the transfer roller . 8) Fix the har ness with two SK binder t ([...]

D . Pick-Up/Feeding System 1. Orientation of the Pick-Up Roller Attach the pick-up roll q so that the side w sho wn in Figure 10-231 is toward the rear . Figure 10-231 2. Orientation of the Multifeeder Pick-Up Roller Attach the multif eeder pick-up roller q so that the side with the collar with a cross w is tow ard the rear . Figure 10-232 10-25 CH[...]

3. P ositioning the P aper Guide Plate Cam (multif eeder) T emporarily fix the screw with a he x nut of the spring clutch assembly in place; turn the control ring. Make adjustments so that the hole in the cam and the hole in the multif eeder dr iv e unit match as indicated in Figure 10-233 when the claw of the control ring is engaged with the solen[...]

E. Fixing System 1. P oints to Note When Attaching the Fixing Film Orient it so that the cut-off is toward the rear . Make sure that the end to ward the front is along the middle groov e. Figure 10-234 2. P oints to Note When Attaching the Heater Connector • When attaching the heater connector to the fixing heater , tak e care not to damage the h[...]

3. Adjusting the Fixing Film Drive Roller Pressure If a fixing f ault occurs, be sure to go through the f ollowing to adjust the pressure of the drive roller . 1) Detach the fixing cov er . 2) Detach the inside cov er of the copier’ s front side. 3) Close the copier’ s upper body , and inser t the door switch actuator . 4) Press the ser vice mo[...]

If the cop y countis ‘180’ or higher and ‘348’ or lo wer and has not changed, go to step 17). Or , if 10’ s and 100’ s do not change, go to step 17); 14) Loosen the fixing scre w w slightly; i.e., mo v e it to the left about 1 mm. 15) T urn the adjusting screw e so that the cop y count is ‘180’ or higher’ and ‘348’ or low er .[...]

5. Adjusting the Nip The nip should be as indicated in Figure 10-238. Y ou must make the f ollowing adjustments if fixing f aults occur . Figure 10-238 Note: a and c represent points 10 cm from both edges of the cop y . a. Measuring the Nip Measure the nip bef ore star ting the da y’ s work; f or e xample, first thing in the mor ning. 1) Open the[...]

10-31 CHAPTER 10 TROUBLESHOO TING COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 6. Routing the Drive Belt Route the drive belt around the pulle y and tensioner as shown in Figure 10-239. Figure 10-239 7. Storing the Fixing Heater Resistance Y ou must store the resistance of the fixing heater as f [...]

Reference: 1. If the measured resistance is 9.5 ohms, enter ‘095’; if 28 ohms , enter ‘280’. 2. The pow er supplied to the fixing heater is phase-controlled based on the v oltage of the pow er supply and the resistance being stored. 8. Setting the Fixing Heater T emperature Control V alue Y ou can change the fixing temperature control v alu[...]

2) Replace the fixing upper unit. 3) Press the ser vice s witch (SW302). • The copier enters ser vice mode and indicates ‘1’. 4) Enter ‘5’ using the ke ypad. • The displa y indicates ‘5’. 5) Press the AE ke y , and enter ‘8’ on the k eypad. • The displa y indicates ‘508’. 6) Press the Star t ke y . • The displa y indicat[...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 10 TROUBLESHOO TING 10-34 10) Enter ‘4’ using the ke ypad, and set the copy count. 11) Press the ser vice switch (SW302), thereb y recalling the temperature of the No . 1 ther mistor . • The displa y indicates ‘1’. 12) Press the AE ke[...]

F . Electrical 1. After Replacing the PCB Y ou must make the adjustments that f ollo w whene ver y ou hav e replaced the f ollowing PCBs. a. DC Controller PCB 1) Enter the v alue recorded on the service mode label attached behind the front door in ser vice mode (‘3’; see p . 10-102). 2) Adjust the multif eeder paper width sensor ; see p. 10-43.[...]

7) Press the AE ke y . • The indication changes to ‘EE’. 8) Press the Star t ke y . • The indication retur ns to ‘450’. 9) T ur n off and on the pow er s witch. • The copier clears the backup RAM, and returns the def ault settings. Reference: T o cancel RAM clearing, press the Clear ke y and then the Reset k ey . T o cancel it after h[...]

a. Copier Name PS1 Scanner home position sensor (SCHP) PS2 Lens home reposition sensor (LHP) PS3 Blank shutter home position sensor (BSHP) PS4 Cassette paper sensor (CPD*) PS5 Multif eeder paper sensor (MFPD*) PS6 Registration sensor (RPD) PS7 Separation sensor (SPD*) + probe Ser vice mode J311-2 — J307-2 No . 205 1-c J315-2 No . 205 1-d J313-9 N[...]

10-38 CHAPTER 10 TROUBLESHOO TING COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) Name PS8 Deliv er y sensor (DSPD*) PS9 Fixing film sensor (FFD) PS10 Right door open/closed sensor (RDOP*) Q651 Cassette size sensor 1 (CSZ-1) Q652 Cassette size sensor 2 (CSZ-2) Q653 Cassette size sensor 3 (CSZ-3) + p[...]

b . Cassette F eeding Unit 10-39 CHAPTER 10 TROUBLESHOO TING COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) Name Q654 Cassette size sensor 4 (CSZ-4) + probe Ser vice mode J314-11 No . 203 2-a Slide out the cassette while in standby , and mov e the detection le v er with a finger . Checks The le v e[...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 10 TROUBLESHOO TING 10-40 Name Q652-2 Cassette 2 size sensor 2 (C2SZ- 2) Q653-2 Cassette 2 size sensor 3 (C2SZ- 3) Q654-2 Cassette 2 size sensor 4 (C2SZ- 4) PS3cu Cassette 3 v er tical path sensor (C3VPD) + probe Ser vice mode J319-B2 No . 201 [...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 10 TROUBLESHOO TING 10-41 Name PS4cu Cassette 3 paper sensor (C3PD*) Q651-3 Cassette 3 size sensor 1 (C3SZ- 1) Q652-3 Cassette 3 size sensor 2 (C3SZ- 2) Q653-3 Cassette 3 size sensor 3 (C3SZ- 3) + probe Ser vice mode J319-A9 No . 203 1-f J319-B[...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 10 TROUBLESHOO TING 10-42 Name Q654-4 Cassette 3 size sensor 4 (C3SZ- 4) PS5cu Cassette right door open/closed sensor (CRDOP*) + probe Ser vice mode J319-B4 No . 202 2-a J319-A6 No . 204 2-a Dra w out the cassette while in standby , and mov e t[...]

4. Adjusting the Multifeeder Paper Width Sensor Store the characteristic of the multif eeder paper width sensor in ser vice mode (501). P erf or m the adjustment when y ou hav e replaced the sensor if the sensor fails to identify the paper size correctly . 1) Open the front door , and inser t the door switch actuator into the door s witch. 2) Press[...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 10 TROUBLESHOO TING 10-44 5. Setting the Paper Size for the Univer sal Cassette If the paper size le v er f or the cassette is at the univ ersal cassette , set the appropriate paper size in service mode (505). 1) Open the front door , and inser[...]

CHAPTER 10 TROUBLESHOO TING 10-45 III. TR OUBLESHOO TING IMA GE F A UL TS A. Initial Checks 1. Site En vironment a. Make sure that the po wer supply is as specified (±10%). b . A void high temper ature/humidity conditions; near water f aucets, w ater boilers, and humidifiers. A v oid areas subject to excessiv ely low temperature , sources of fire,[...]

5. Others Moving a machine which has been cooled in a stor age room or the lik e in winter to a warm room can lead to condensation inside the machine, causing v ar ious problems; f or instance, a. condensation on the scanning system (glass, mirror , lens) leads to light images. b . condensation in the charging system leads to electrical leakage. c.[...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 10-47 CHAPTER 10 TROUBLESHOO TING[...]

B. SAMPLES OF IMA GE F A UL TS not av ailable COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 10-48 CHAPTER 10 TROUBLESHOO TING[...]

C. T r oubleshooting F aulty Images 1. The copy is too light (half-tone onl y). COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 10-49 CHAPTER 10 TROUBLESHOO TING Cause AE mechanism De v eloping assembly Scanner Drum car tridge Checks P erf or m the Basic Image Adjustment Procedure. Is the problem co[...]

2. The copy is too light (blac k solid also). 3. The copy is too light (overall, e xtremely). COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 10-50 CHAPTER 10 TROUBLESHOO TING Checks P erf or m the Image Basic Adjustment Procedure. Is the problem corrected? T ur n off the power s witch during cop yi[...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 10-51 CHAPTER 10 TROUBLESHOO TING Checks T ake out the de veloping assemb ly , and shake it. Is the prob lem corrected? Is the reading in ser vice mode (105; primar y current) 10 µA or less? Cause T oner lev el, toner le v el detection mechanism Compo[...]

4. The copy has une ven density (front too dark). 5. The copy has une ven density (front too light). COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 10-52 CHAPTER 10 TROUBLESHOO TING Checks Clean the scanning lamp , reflect- ing plate, side reflecting plate , mirror , lens, and dust-proofing glass. [...]

6. The copy is f oggy (overall). COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 10-53 CHAPTER 10 TROUBLESHOO TING Checks P erf or m the Basic Image Adjustment Procedure. Is the problem corrected? Clean the scanning lamp , reflect- ing plate, side reflecting plate , mirror , lens, and dust-proofing [...]

7. The copy is f oggy (ver tical). 8. The copy has b lack lines (vertical; thick fuzzy lines). 9. The copy has b lack lines (vertical, fine). COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 10-54 CHAPTER 10 TROUBLESHOO TING Checks P erf or m the Image Adjustment Basic Procedure. Is the prob lem corr[...]

10. The copy has white spot (vertical). 11. The copy has white lines (vertical). COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 10-55 CHAPTER 10 TROUBLESHOO TING Checks Make a cop y with the cop yboard cov er lifted, and tur n off the power s witch while the paper is moving through the f eeding ass[...]

12. The copy has white spots (horizontal). COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 10-56 CHAPTER 10 TROUBLESHOO TING Checks T ake out the de veloping assemb ly , and shake it se ver al times. Is the problem corrected? Is the problem noted at intervals of about 9.4 cm (scratches in the photos[...]

13. The bac k of the copy is soiled. COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 10-57 CHAPTER 10 TROUBLESHOO TING Checks T ur n off the power s witch while paper is moving through the f eeding assemb ly . Is the bac k of the cop y soiled? Ex ecute ‘No . 403’ in ser vice mode (transf er roll[...]

14. The copy has a fixing fault. 15, 16, 17 The leading edg e of the copy is displaced. COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 10-58 CHAPTER 10 TROUBLESHOO TING Checks Is the problem noted v er tically? Is the nip of the fixing assembly within specification? (Use ‘No . 402’ of ser vice [...]

18. The copy has a b lurred image. CHAPTER 10 TROUBLESHOO TING Checks Does the cable o verlap on the cable pulle y while the scanner is moving? Is the cab le too loose or too tight? Is the scanner rail soiled? Is f oreign matter f ound on the scanner rail? Is the gear of the scanner drive assembly chipped? Is the problem noted at intervals of about[...]

19. The copy is f oggy (horizontal). COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 10-60 CHAPTER 10 TROUBLESHOO TING Checks Is the problem noted at the same position on all copies made in Direct? Does the scanning lamp flick er when the scanner is moving f orward? Check the de veloping assemb ly s[...]

20. The copy has poor sharpness. COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 10-61 CHAPTER 10 TROUBLESHOO TING Cause Original Cop yboard glass Lens drive assembly T ransf er charging roller Drum car tridge De v eloping assembly De v elopment bias Mirror Scanner Checks Is the original off the gla[...]

21. The copy is b lank. 22. The copy is solid b lac k. COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 10-62 CHAPTER 10 TROUBLESHOO TING Checks Is the drum car tridge securely inser ted? Is the drum car tridge rotating during copying oper ation? Is the transf er charging roller securely inser ted? I[...]

IV . TR OUBLESHOO TING MALFUNCTIONS A. T r oubleshooting Malfunctions 1. E000 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 10-63 CHAPTER 10 TROUBLESHOO TING Checks Disconnect the connector (J4) of the fixing heater , and press the pow er s witch while holding down the ser vice mode s witch. (This[...]

2. E001 3. E002, E003 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 10-64 CHAPTER 10 TROUBLESHOO TING Checks Disconnect the connector (J4) of the fixing heater , and press the pow er s witch while holding down the ser vice mode s witch. (This clears E001; about 2 sec later , the pow er s witch tur[...]

4. E004 5. E007 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 10-65 CHAPTER 10 TROUBLESHOO TING Cause Fixing film Fixing film tension roller pressure Fixing film Fixing film sensor Fixing film sensor (PS9) Fixing film motor (M4) DC controller PCB Checks Replace the fixing heater driver PCB. Is the[...]

6. E010 7. E030 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 10-66 CHAPTER 10 TROUBLESHOO TING Cause Main motor unit (M1; ref ers to main motor and main motor driver PCB as single entity) DC controller PCB Drive belt DC pow er supply Main motor unit DC controller PCB Checks Does the main motor ro[...]

8. E064 9. E202 (keys on contr ol panel in validated) COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 10-67 CHAPTER 10 TROUBLESHOO TING Cause Wire Composite pow er supply PCB T ransf er charg- ing assembly , T ransf er charging roller Primar y charging roller High-v oltage cable Checks T ur n off an[...]

10. E210 11. E220 12. E240 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 10-68 CHAPTER 10 TROUBLESHOO TING Checks T ur n on the power s witch. Does the lens mov e? Is the lens home position sensor (PS2) nor mal? (See the instructions on how to check photointerrupters.) Replace the DC controller PC[...]

13. E261 14. E710, E711, E712, E717 15. E803 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 10-69 CHAPTER 10 TROUBLESHOO TING Checks T ur n off and on the power supply . Is the problem corrected? Replace the composite pow er supply PCB. Is the prob lem corrected? Cause P ower supply frequency Compo[...]

16. A C power suppl y is absent. COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 10-70 CHAPTER 10 TROUBLESHOO TING Checks Does an E code tur n on when the pow er s witch is tur ned on, and the pow er s witch tur n off within about 2 sec? Is the pow er plug connected securely? Are the front door and [...]

17. DC power suppl y is absent. COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 10-71 CHAPTER 10 TROUBLESHOO TING Checks Is electrical continuity present between J211-1 on the composite pow er supply PCB and J309-1 on the DC controller PCB? Replace the control panel. Cause Connector (J211, J302, J30[...]

18. The blank shutter fails to mo ve . 19. The photosensitive drum fails to rotate. COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 10-72 CHAPTER 10 TROUBLESHOO TING Checks Does the lens mov e? Is the drive of the lens motor transmitted to the gear of the blank driv e assemb ly? Is the blank shutter[...]

20. The pic k-up operation fails (from cassette). 21. The pic k-up operation from the m ultifeeder fails. COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 10-73 CHAPTER 10 TROUBLESHOO TING Checks Is the paper inside the cassette under the claws? Slide out and then in the cassette. Is the problem corr[...]

22. The scanner fails to move f orward/in re verse. 23. The registration roller fails to r otate . COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 10-74 CHAPTER 10 TROUBLESHOO TING Checks Is the cable f or the scanner routed correctly? Is the scanner rail free of dir t, and does the scanner mov e sm[...]

24. The scanning lamp fails to turn on. 25. The lens fails to move. COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 10-75 CHAPTER 10 TROUBLESHOO TING Checks T ur n off the power s witch, and disconnect the pow er plug. Is the lamp attached correctly? Are the ends of the scanning lamp blac k? Replace[...]

26. The fixing heater fails to operate. 27. The pre-exposure lamp fails to turn on. 28. The add paper indicator fails to turn off. COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 10-76 CHAPTER 10 TROUBLESHOO TING Checks Is E000 indicated? Replace the DC control PCB. Is the problem corrected? Cause D[...]

29 The jam message fails to turn off. COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 10-77 CHAPTER 10 TROUBLESHOO TING Checks Identify which sensor has detected the jam in ‘No . 107’ of ser vice mode (jam histor y). Is paper f ound near the sensor? Is the sensor identified in step 1 nor mal? (S[...]

V . TR OUBLESHOO TING FEEDING PROBLEMS A. Jams (copy paper) Jams tend to occur in the f ollowing locations of the copier: q pick-up assemb ly w separation/f eeding assembly e fixing/deliv er y assembly The descriptions that follo w , therefore , are organized according to each of the abov e locations. When a jam occurs, try to find out the location[...]

1. Pick-Up Assembl y COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 10-79 CHAPTER 10 TROUBLESHOO TING Cause Cassette Cop y paper DC controller PCB, Pic k-up s witch Pick-up roller Registration roller drive assembly Registration roller , vertical path roller Cop y paper Pick-up roller Checks Did the[...]

2. Separation/Feeding Assembly 3. Fixing/Deliver y Assembl y COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 10-80 CHAPTER 10 TROUBLESHOO TING Cause T ransf er charg- ing assembly Cop y paper F eed belt Checks Is the transf er charging assembly set correctly? Are there burrs on the paper guide of th[...]

B. Feeding Faults 1. Double feeding 2. Wrinkling COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 10-81 CHAPTER 10 TROUBLESHOO TING Cause Separation pad Spring Checks Is the separation pad def or med or wor n ? Step 1 Results YES NO Action Replace the separation pad. Push up the separation pad, and t[...]

10-82 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 10 TROUBLESHOO TING VI ARRANGEMENT/FUNCTIONS OF THE ELECTRICAL P AR TS A. Sensors Figure 10-601[...]

10-83 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 10 TROUBLESHOO TING Symbol Name Photointerrupter T oner sensor Ther mistor V olume Ther mal fuse Ref . PS1 PS2 PS3 PS4 PS5 PS6 PS7 PS8 PS9 PS10 Q561 Q562 Q563 Q564 AT S TH1 TH2 TH3 TH4 VR1 FU1 Description detects scanner home position det[...]

B. Clutches, Solenoids, and Switc hes Figure 10-602 10-84 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 10 TROUBLESHOO TING[...]

10-85 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 10 TROUBLESHOO TING T able 10-602 Symbol Name Clutch Solenoid Push s witch Switch V ar istor Counter Ref . CL1 CL2 CL3 SL1 SL2 SL3 SL4 SL5 DS1 SW1 SW2 ZD1 ZD2 CNT1 CNT2 Description registration clutch pick-up clutch multif eeder pick-up c[...]

10-86 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 10 TROUBLESHOO TING C. Motors, Heater s, and Lamps Figure 10-603[...]

10-87 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 10 TROUBLESHOO TING T able 10-603 Symbol Name Motor F an motor Heater Fluorescent lamp Lamp Ref . M1 M2 M3 M4 FM1 H1 H2 R1 FL1 LA1 Description main motor scanning motor lens motor fixing belt motor heat e xhaust f an fixing heater fluores[...]

10-88 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 10 TROUBLESHOO TING D . PCBs Figure 10-604[...]

T able 10-604 10-89 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 10 TROUBLESHOO TING Ref . 1 2 3 4 5 6 7 8 9 10 Name Noise filter Composite pow er supply DC controller AE sensor Intensity sensor Control panel High-v oltage connector De v elopment bias connector Heater driver Heater on det[...]

10-90 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 10 TROUBLESHOO TING E. Cassette Feeding Module – A2 Figure 10-605 PS1cu PS3cu PS2cu M1cu CL2cu CL1cu 1 PS4cu Q564-2 Q563-2 Q562-2 Q561-2 PS5cu Q564-3 Q563-3 Q562-3 Q561-3 Hcu[...]

10-91 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 10 TROUBLESHOO TING T able 10-605 Symbol Name Photointerrupter Motor Clutch Heater Cassette driver Ref . PS1cu PS2cu PS3cu PS4cu PS5cu Q561-2 Q562-2 Q563-2 Q564-2 Q561-3 Q562-3 Q563-3 Q564-3 M1cu CL1cu CL2cu Hcu Description mcassette 2 v [...]

F . V ariable Resistors (VR) and Chec k Pins by PCB Of all the VRs and check pins f ound in the copier , those that are needed in the field are discussed. Caution: Do not touch the VRs and chec k pins that are not discussed herein; they are f or f actor y adjustment only and require special tools and instruments and must be adjusted with high preci[...]

2. Composite power supply PCB Figure 10-607 10-93 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 10 TROUBLESHOO TING J212 13 J209 J211 1 2 J908 1 3 J202 2 1 J204 3 1 J906 1 2 LED501 1 15 J213 12 J210 16 J206 12 J205 15[...]

CHAPTER 10 TROUBLESHOO TING 10-94 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) Item [ 1 ] [ 2 ] [ 3 ] [ 4 ] [ 5 ] [ 6 ] Description control displa y mode I/O displa y mode adjustment mode operation/inspection mode specification mode counter mode VII. SER VICE MODE A. Outline The copier’ s ser v[...]

CHAPTER 10 TROUBLESHOO TING 10-95 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 2. Selecting a Ser vice Mode 1) While the cop y count indicator is indicating [1], press a ke y from [1] through [6] to select the appropriate mode. 2) Press the AE ke y . • The copier activ ates the selected mode, a[...]

CHAPTER 10 TROUBLESHOO TING 10-96 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) No. 301 302 303 304 305 306 307 308 309 310 31 1 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 AE_LIGHT AE_SHIFT AE_SLOPE HEA TER REGIST LE_BLANK REGIST_R LE_BLANK_R TE_BLANK TE_BLANK_MF B_HOME B_HOME_RE [...]

CHAPTER 10 TROUBLESHOO TING C. Control Displa y Mode [1] • T o select an item, press the appropriate ke y on the ke ypad and then the Star t ke y . • T o clear an item, press the Clear ke y . • A press on the Star t ke y while a ser vice mode is indicated e x ecutes the respective operation. T able 10-702 10-97 COPYRIGHT © 1997 CANON INC. CA[...]

CHAPTER 10 TROUBLESHOO TING 10-98 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) LED (ON) 1-a 1-b 1-c 1-d 1-e 1-f 1-g 2-a 2-b 2-c 2-d 2-e Jam pre-registration dela y jam pre-registration stationary jam separation dela y jam separation stationary jam deliv er y dela y jam deliv er y stationar y jam [...]

CHAPTER 10 TROUBLESHOO TING D . I/O Mode [2] • Press [2] on the ke ypad and the AE ke y to activ ate I/O displa y mode. • T o clear an item, press the Clear ke y . • A press on the Star t ke y while a ser vice mode is indicated e x ecutes the respective operation. T able 10-12 10-99 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 [...]

CHAPTER 10 TROUBLESHOO TING LED (cop y count indicator ; from 201 to 205) No . 201/202/203/204 P or t C Digital Displa y 10-100 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) 2-a 1-a 2-f 2-b 2-g 2-e 2-c 2-d 1-f 1-g 1-b 1-e 1-d 1-c No . 201 202 203 Description Cassette 2 connect Cassette 2 connect O[...]

CHAPTER 10 TROUBLESHOO TING T able 10-13 No . 205 P or t H Displa y T able 10-14 10-101 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) No . 204 Description Right door open/closed sensor (PS10) Separation sensor (PS7) Cassette paper sensor (PS4) Multif eeder paper sensor (PS5) Cassette 2 paper senso[...]

CHAPTER 10 TROUBLESHOO TING E. Adjustment Mode [3] • T o activ ate adjustment mode, press [3] on the k eypad and then the AE k ey . • T o select an item, press the appropriate ke y on the k eypad and then the Star t ke y . • T o change the setting, press the appropriate ke ys on the ke ypad and then the AE k ey . • T o cancel an item, press[...]

CHAPTER 10 TROUBLESHOO TING 10-103 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) No . 311 312 313 314 315 316 317 318 319 Description Left/right margin adjustment (Direct; home position f or slide shutter f or b lank e xposure) Left/right margin adjustment (Reduce; tra v el distance of slide shutt[...]

CHAPTER 10 TROUBLESHOO TING T able 10-15-2 10-104 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) No . 320 321 322 323 324 325 326 Description Arch adjustment when cassette 2 is used (pick-up roller OFF timing) Arch adjustment when cassette 2 is used (pick-up roller OFF timing) Arch adjustment when [...]

CHAPTER 10 TROUBLESHOO TING F . Operation/Inspection Mode [4] • T o activ ate operation/inspection mode, press [4] on the k e ypad and then the AE ke y . • T o select an item, press the appropriate ke y on the ke ypad and then the Star t ke y . • T o e xecute the mode , press the Star t ke y . • T o stop the operation, press the Stop k ey; [...]

CHAPTER 10 TROUBLESHOO TING T able 10-16 10-106 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) No . 410 411 412 450 Description Scanner f orward stop Pre-e xposure lamp on Drum unit installation mode Back-up RAM clear Remarks Ex ecute it when installing or replacing the drum unit; a press on the St[...]

CHAPTER 10 TROUBLESHOO TING 10-107 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) G. Specification Settings Mode [5] • T o activ ate specification settings mode, press [5] on the k eypad and then the AE k ey . • T o select an item, press the appropriate ke y on the ke ypad and then the Star t k[...]

H. Counter Mode [6] • T o activ ate the mode, press [6] on the k eypad and then the AE k ey . • T o select an item, press the appropriate ke y on the k eypad and then the Star t ke y . • T o cancel an item, press the Clear ke y . • A press on the Star t ke y e xecutes the respectiv e ser vice operation. • T o obtain the actual count, mult[...]

VIII. SELF DIA GNOSIS A. Copier The microprocessor on the copier’ s DC controller is provided with a self diagnosis mechanism that checks the condition of the machine (sensors , in par ticular). The copier runs self diagnosis and, when it identifies an error , indicates a code that represents each specific error . If the copier finds an error ass[...]

T able 10-19-2 10-110 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 10 TROUBLESHOO TING Code Cause • Ther mistor (TH1, TH2; displacement, poor contact, open circuit) • Fixing heater (H1; open circuit, crac k) • Ther mal fuse (FU1; malfunction) • T r iac (f aulty) • DC controller [...]

T able 10-19-3 10-111 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 10 TROUBLESHOO TING Code Cause • Lens cable (displacement, tear) • Lens home position sensor (PS2; f aulty) • Slide shutter (operation) • Blank shutter home position sensor (PS3; f aulty) • Change solenoid (SL1; [...]

Clearing an Error Code (back-up data) When the self diagnosis mechanism has been activ ated, the copier ma y be reset by tur ning its pow er off and on. How e ver , this does not work f or E000, E001, E002, E003, or E004; this arrangement is to pre v ent the user from causally resetting an y of the errors , which could damage the film or the heater[...]

B. Self Diagnosis (ADF) T able 10-20 Note: T o reset the copier after activ ation of the self diagnosis mechanism, s witch the copier off and then on. Y ou can still continue to make copies e v en when the ADF is out of order ; simply open the ADF , and set the documents on the cop yboard glass. 10-113 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV [...]

10-114 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 10 TROUBLESHOO TING C. Self Diagnosis (sorter) T able 10-21 Note: Some copiers use ‘E500’ to represent all the abov e errors. ■ Error Condition q The copier indicates the “TURN ON PO WER” message. w When the pow er has been tur[...]

10-115 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 10 TROUBLESHOO TING Note: Ev en in down state , the sor ter will run a self check and rest if the result is good if you ha ve s witched it off and then on without detaching it from the copier . * Simply turn off the joint sensor (MS3) to[...]

10-116 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MAR. 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) CHAPTER 10 TROUBLESHOO TING[...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) APPENDIX A. GENERAL TIMING CHART ...............A-1 B. SIGNALS AND ABBREVIA TIONS ......A-2 C . GENERAL CIRCUIT DIAGRAM .........A-3 D . SPECIAL T OOLS ...............................A-5 E. SOL VENTS/OILS ................................A-6[...]

A. GENERAL TIMING CHAR T (A4, 2 copies, Direct, fr om copier cassette) COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) A-1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Sequence STBY INTR AER SCFW SCRV SCFW SCRV LSTR STBY Main motor (M1) Pre-exposure lamp Primary charging (APVC) Primar[...]

B. SIGNALS AND ABBREVIA TIONS 1. Signals and Abbreviations COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME AU J APON) A-2 A CBIAS DEVELOPING A C BIAS VOL T AGE DETECTION signal AE AE SENSOR OUTPUT signal AE AEREF AE SENSOR REFERENCE signal AE A TTH AMBIENT TEMPERA TURE THERMIST OR signal BIASS DEVELOPING DC BI[...]

C. GENERAL CIRCUIT DIA GRAM COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) A-3 not av ailable[...]

COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MAR. 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) A-4[...]

D . SPECIAL T OOLS See the table f or the special tools used to ser vice the machine in addition to the standard tools set. COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) APPENDIX A-5 No . 1 2 3 T ool name Door s witch actuator Mirror positioning tool (comes in pairs; front, rear) Pulley clip T ool[...]

E. SOL VENTS/OILS COPYRIGHT © 1997 CANON INC. CANON NP6218 REV . 0 MA Y 1997 PRINTED IN JAP AN (IMPRIME A U JAPON) APPENDIX A-6 No . 1 2 3 4 5 6 Name Ethl alcohol (Ethanol) Isoprop yl alcohol (Isopropanol) MEK Heat-resis- tant grease Lubricating oil (low viscosity) Lubricating oil (low viscosity) Lubricating oil Use Cleaning: cop yboard glass, mir[...]

Prepared by OFFICE IMAGING PRODUCTS TECHNICAL SUPPORT DEPT. 1 OFFICE IMAGING PRODUCTS TECHNICAL SUPPORT DIV. CANON INC. Printed in Japan REVISION 0 (MAY 1997) [31625] 5-1, Hakusan 7-chome, Toride-shi, Ibaraki 302 Japan[...]

PRINTED IN JAP AN (IMPRIMÉ A U JAPON) 0797S0.7-2 This publication is printed on 70% reprocessed paper .[...]