Sharp SF-1020 manuale d’uso

SER VICE MA NUAL COD E: 00Z SF1 12 0SM/ E MODEL SF-1020 MODEL SF-1120 Option • Paper tray (SF-UB15) • Two-step paper feed unit (SF-CM15) • One-step paper feed unit (SF-CM16) • Personal counter (SF-71A/71B) • 10-bin sorter (SF-S17N) @ • 10-bin staple sorter (SF-S54) @ • Auto document feeder (SF-A18) @ • Reverse automatic document fee[...]

Contents [1] PRODUCT OUTLINE . . . . . . . . . . . . . . . . . . . 1-1 1. Pro duct f eat ures . . . . . . . . . . . . . . . . . . . . . . . . 1-1 2. System con f igu r a tion (op tion s) . . . . . . . . . . . . . 1-1 [2] PRODUCT SPECIFICATIONS . . . . . . . . . . 2-1 1. Basic spe cifica tion s . . . . . . . . . . . . . . . . . . . . . . 2-1 2. Desc[...]

1-8. Transport roller . . . . . . . . . . . . . . . . . . . . . 6-3 1-9. Lower paper feed roller/take-up roller . . . 6-3 2. Transp or t un it . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3 2-1. Resist roller, transfer roller . . . . . . . . . . . . 6-3 2-2. Transport belt . . . . . . . . . . . . . . . . . . . . . . 6-4 3. Fusing secti on [...]

2-6. Process section adjustment . . . . . . . . . . 7-21 [8] SIMULATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1 1. Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1 2. Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1 3. Operati ng pr oc e dure . . . . . . . . . . . . . . . . . . .[...]

[1] PRODUCT OUTLINE 1. Product features (1) Compact body • Compact body size The body width of 600mm is the smallest in the class. • The employment of the front loading tray and the folding-type multi manual paper feed cassette realizes the small occupying area. (2) Clean copy gentle to the environment • Silent design, • Low level of ozone,[...]

[2] PRODUCT SPECIFICATIONS 1. Basic specifications (1) Type: Table top (2) Copy speed: <SF-1020/1120> Normal Enlargement (Magnification) Reduction (Magnification) A3 11 sheets/min 10 sheets/min (200%) 10 sheets/min (50%) B4 13 sheets/min 12 sheets/min 12 sheets/min A4 (Portrait) 20 sheets/min 15 sheets/min 15 sheets/min A4 (Landscape) 15 shee[...]

2. Description of each section (1) Paper feed section SF-1020 SF-1120 Copying size A3 ∼ A6/W letter ∼ Invoice Paper feed system 2 trays + multi manual feed 1 tray + multi manual feed Paper feed capacity 250 sheets × 22 5 0 s h e e t s × 1 Cassette Paper size Paper weight Paper kind Remark Body tray upper stage AB series: A3 ∼ A5 56 ∼ 80g/[...]

3. Supply parts Brazil/Asia except Hong Kong Name Contents Life Product name 1 OPC Drum kit OPC Drum × 1 Cleaner Blade × 1 Drum Separation Pawl × 2 Separation Pawl Spring × 2 50K SF-216DR 2 Black Developer Black developer × 10 50K × 10 SF-216CD1 (SF-216SD1 × 10) 3 Black Toner Black Toner Bottle (240 g) × 10 6K × 10 SF-116CT (SF-116ST × 10[...]

4. Optional specifications (1) Automatic document feeder (ADF) <Model name: SF-A18> Original set direction Face up Original set position Center reference Original transport system Belt (half size) system Original feed sequence Bottom taking (Face up exit) Original size A3 ∼ A5/11" × 17" ∼ 8 1/2" × 5 1/2" Original cha[...]

(4) 10-bin staple sorter (10-bin SS) <Model name: SF-S54> Type Copier installation type/hanging type Distribution system Bin shift system by lead screw No. of bins 10 bins (The top bin is commonly used for non-sort. Capacity 30 sheets for each bin (A4, 8 1/2" × 11", 80g/m 2 ) 100 sheets for the top bin Sort 30 sheets (A4, 8 1/2&quo[...]

[3] PRODUCT VIEWS 1. External view and internal structure No. Name No. Name No. Name 1 Original stocker 2 Original cover 3 Original table 4 Paper exit tray 5 Grip 6 Manual feed unit 7 Manual feed original guide 8 Manual feed tray 9 Operation panel F Front cover G Power switch H Paper tray (SF-1020), Duplex tray (SF-1120) I Paper tray J Developing u[...]

2. Operation panel SF-1020 (AB series) (Inch series) STA PLE SO RT SO RT SORT ER GROU P DUA L P A GE COPY MARGIN SH IFT EDGE ERAS E EXPO SURE AUT O MANUAL PHO TO 2 13 4 5 LIGHT DARK ORIGINAL SIZE PAP ER SIZE A3 A4 A4 A5 B4 EX T R A AUTO PAPER SELECT TRAY SEL ECT AUTO IMAGE PRESET RATI O 100% 200% 141% 122% 115% 86% 81% 70% 50% % ZO OM INTE R R UPT [...]

SF-1120 (AB series) (Inch series) STA PLE SO RT SO RT SORT ER GROU P DUAL PAGE COPY MARGIN SH IFT EDGE ERAS E EXPO SURE AUT O MANUAL PHO TO 2 13 4 5 LIGHT DARK ORIGINAL SIZE PAP ER SIZE A3 A4 A4 A5 B4 EX T R A AUTO PAPER SELECT TRAY SEL ECT AUTO IMAGE PRESET RATI O 100% 200% 141% 122% 115% 86% 81% 70% 50% % ZOOM INT ERRUP T 0/ C 7 4 12 5 8 3 6 9 PO[...]

3. Clutches, solenoids, and motors (Explained with the SF-1120 and the SF-CM15) Clutches and solenoids No. Signal name Name Functions, operations 1 PSPS Paper separation solenoid Paper separation solenoid drive 2 RRC Resist roller clutch For resist roller rotation 3 TRC Transport roller clutch For transport roller rotation 4 CPFC1 Tray paper feed c[...]

4. PWB (Explained with the SF-1120 and the SF-CM15) No Name Description No Name Description 1 Operation PWB A Operation input, display control 2 Operation PWB B Operation input, display control 3 Blank lamp PWB Used to control the blank lamp. 4 DL PWB Used to drive the discharge lamp. 5 Optical PWB AE sensor and lens motor interface 6 Process contr[...]

5. Sensors and switches (Explained with the SF-1120 and the SF-CM15) F o r t h e A D U s e n s o r , r e f e r t o p a g e 5 - 1 8 . No. Signal name Name Type Operation, function 1 TCS Toner density control sensor Transmission sensor HIGH when toner density falls. 2 ILSW Front cabinet open/close switch Interlock switch ON when closed. 3 MSW Power s[...]

6. Rollers, mirrors, etc. No. Name No. Name No. Name 1 No. 3 mirror 2 No. 2 mirror 3 No. 1 mirror 4 Copy lamp 5 No. 4 mirror 6 No. 5 mirror 7 No. 6 mirror 8 Developing unit toner box 9 Manual tray F — G Take-up roller H Paper feed roller I Reverse roller J PS front roller follower roll K PS front roller L Developing unit M Blank lamp N Main charg[...]

[4] UNP ACKING AND INST ALLA TION 1. Unpacki ng Pa cking m at eria l / a cces sory l i s t Name Q’ty 1 Paper exit tray 1 2 Instruction manual 1 3 Maintenance card 1 4 Dust cover 1 5 Service contract 1 6 Installation manual 1 7 Magnification ratio select label 1 2. Ins tal lat ion Installing con di tions The sur roun ding c ondi ti ons of t he mac[...]

5 Avoid installation to a poorly ventilated place. 6 Avoid installation to a place where there are flammable materials or ammonia gas, etc. If the machine is installed near a diazo copier, the picture quality may be degraded and malfunctions may occur. 7 Install near a power outlet. (2) Space ar ound the ma chi ne In stall th e ma ch ine w ith i ts[...]

3. Opt ical sy stem lock r elease A. No. 2/ 3 mirror unit lock rel ease Rem ove t he o ne f ixi ng s cre w of t he No . 2/3 mir ror unit on t he lef t si de of th e copie r . B. Lens and No. 4/5 mi rror unit lock rel ease Remove two fixing screws o f the N o. 4/5 mirro r unit o n th e right inside of th e copie r . Op en the fro nt cab i net an d r[...]

4 Return the electrode section to the original position and fix it with a screw. 5 Insert the main charger unit along the guide groove in the copier fully to the bottom. 5. D eveloping unit sett ing A. Developing u nit setting 1 Open the front cabinet, remove the installation toner fixed to the developing unit level with tape, and pull the developi[...]

6 Hold the hand carry strap of the developing unit and insert it into the copier fully to the bottom. 7 Close the developing unit lever and close the front cabinet. Wit h the ab ove p roc edure , sett ing o f the d evel o ping uni t i s co m- pl eted . 6. T oner de nsity sensor l evel adjus tment Turn on the c op ier pow er swit ch. A. Developing u[...]

3 Hold the new toner bottle as shown and shake it four or five times. 4 Open the toner hopper cover. 5 Pour the toner evenly into the toner hopper. 6 Close the toner hopper cover. 7 Slide the developer unit into the copier. 8 Return the developer unit lock lever into place. 9 Close the front cover. 4 – 6[...]

9. C enter sh ift a djust ment The re is bas ica lly no ne ed t o p erform th e ce nter shi ft adj ust ment beca use i t is m ade w hen s hip ping . If the cent er shou ld be sh ifte d, adju st in t he f oll owing pro cedu res . Mak e a c op y . If t he ce nt er i s shi fte d as sh own in Fig . 1 or Fi g. 2, loos en the fou r s crew s wh ich a re f[...]

1 1. Opti ona l tw o-st e p pa p er fe ed unit (S F-CM15 ) inst allati on Parts packed together Disconnect the p o wer plug of the cop ier and perf orm the f ollo win g proc edures. 1 Remove two screws which are fixing the rear cabinet on the lower stage of the copier, and remove the rear cabinet. 2 Remove the notched section of the lower stage of [...]

Conn ect the rear side of the c opier with two c onnection screws C. 6 Remove the connecter which is fixed to the rear cabinet of the two-stage paper feed unit with tape. Connect the 4P connector and 10P connector with the 4P connector and 16P connector of the copier. 7 Install the rear cabinet which was removed in procedure 1 to the original posti[...]

3. Placi ng the mai n co pier unit ove r the paper f eed u ni t [N ote] • The following procedure should always be performed by two per- sons. Lift the main copier unit by the grips and slip the two positioning holes on the bottom of the main copier unit over the two position- ing bosses on the paper feed unit, then set the four feet on the main [...]

8. S et the mode . Plug the cop ier in to a g ro unde d ou t let a nd tur n the pow er sw itc h on. • Operate the keys on the copier to set the mode. The above key operation will display the currently set mode. • Immediately after the above key operation, operate the keys as follows: 9. Cen te ri ng t h e pa per The pa per tray s ar e adjus ted[...]

3. Remov e the size bl ock u pw ar d, and f it t o th e suitable paper size. Caution • When the tray paper size is changed, be sure to change the size block. If not, the paper size display lamp keeps indicating the previous size. 4. At t ach t he tray . Re ver se th e rem oving proc edur e of the t ray . (T i lt upw ard and in ser t the tray th e[...]

[5] DESCRIPTIONS OF EACH SECTIO N Des crip tions a re made on th e f ollow ing se cti on s: 1 Paper feed section 2 Developing section 3 Optical section 4 Process section 5 Separation/transport section 6 Fusing/paper exit section 7 High voltage section 8 ADU section (SF-1120 only) 1. Paper feed secti on 1) G eneral descriptions T o re al ize t he c [...]

2. Devel op ing secti on 1) G eneral descriptions (1) T wo-c omponent d evelop er The de velop er is co mp osed of tone r a nd ca rr ier. Ca rrier serv es as a m ediu m for at tachi ng t oner onto t he el ectro stati c im ag e on t he p hotoc ondu ctor d rum. By s tirr ing tone r and ca rri er , th ey are r ubb ed t o be c harge d pos i t ive (+) a[...]

3) Basic o perations (Cassette pa pe r feed) Whe n th e CP FC (cas sette pap er fe ed c lut ch) i s t ur ned on, th e pa per fe ed roll er shaf t, th e pa per f eed ro ller , an d th e take -up ro ller rot ates i n th e dire ction of A, and t he roll er relea s e ar m is mov ed do wnwa rd by the li miter spring. As a result, the take-u p roller fal[...]

(1) Origin al t able The origin al tab le is fixed. T he ori ginal is se t in t he le ft center p ositi on. (2) C opy lamp 100V ser i es: 85V , 275W 20 0V se rie s: 170V , 31 0W (3) Mi rr o r This mod el uses six mirrors. No. 1 mirror is attache d to the c opy lamp uni t, No. 2 / 3 mirrors are att ache d to N o. 2/ 3 mirr or ba se, No. 4/5 mi rrors[...]

(7) Lens dr ive shaft Thi s shaf t cont rols the opt ica l ax is of the lens i n zoom co py . Th e lens follo ws alo ng the slide base sha ft. (8) Lens drive wire This is to shift th e lens u nit a nd the No . 4/5 mirror ba se. (9) No. 4/5 mirror unit No . 4/ 5 mirro rs a re a ttach ed t o this unit. It is shif ted by the le ns driv e mo t o r to c[...]

(20) O ri gi nal size sensi n g The or ig in al siz e is se ns ed by the or ig in al int err u pt i on syst em . The L ED in th e rear frame side emit s li ght t o the ta ble gl ass su rfac e. The orig inal int errupts this light , a nd its size is dete cted . 2. Basi c operations (Positio ns of the o riginal, the lens, and the image in e ach mag- [...]

(Opt ical syste m dirt c orrecti on) This mode l per form di rt cor rect ion by c h ang ing t he c o py lamp in ten- sit y a ccord ing t o the d irt degr ee in th e optic al s ystem (t he co py la mp unit, No. 1 mirror , No .2 mirror , No.3 mirror) to prevent a gainst rema rk- abl e degr a din g of copy qual ity . The refe ren ce val ue i s th e AE[...]

(4 ) Co py pro cess This model basi c process and structure • The Scorotron method is used to evenly charge the photoconduc- tor surface to the given potential in the charge process. The corona wire regularly used is now replaced with a new corona charge mechanism that employs the 0.1mm thick stainless steel saw teeth plate, in order to suppress [...]

(2) Process diagram High voltag e uni t Main corona unit Disc ha rge la m p Cl e ani ng bl ad e Was te toner collect ion Paper exit Fusi ng Hea t r o ller Heater lamp Sep ar at ion Separation Separation corona u n it High vol tage unit Tr ansfer charger High voltag e uni t Char ging Di schargi ng Cl eaning Transfer D r u m upper i m age/p a pe r sy[...]

(3) Detail s of image f orming process Step 1 ( M ai n Ch ar gi ng) By nega t i ve d isc har ging of the main charg er , u nif orm ne gati v e c har - ges a re ap pl ied to the O P C dr um surf ace. The OP C dr um s urfac e poten tia l is c ontro lle d by the s cre en gri d volt ag e to m a intain th e gr id v oltag e a t a c onsta nt leve l. • W[...]

Step 3 ( Devel opment ) T on er is a tta ch ed to t he la te nt stat ic-e lec tric ity i ma ges on t he d rum sur fac e to ch ange t hem t o vis ible i mage s. Th e tw o-com pone nt mag - net ic brus h deve lop men t sys tem ch arges ton er posi ti vely by fr ict ion wit h carri ers, a nd to ner is at tache d to nega tive c har ges on th e dr um su[...]

Step 4 ( T ransfer ) The t r ansfe r pa per is cha rge d hi gher t han the O PC dr um s urf ac e po te nt ial by s tr on g n eg at ive di sc ha r ge of t he tr an sf er c ha r ge r, mak in g the b indin g forc e bet ween t he tra nsf er pa per an d ton er st ronge r than th at bet w een the drum and ton er, attr act ing t on er to th e tran sf er p[...]

Step 6 ( Cle ani ng) Res idu al tone r on th e drum is r emov ed by t he clea nin g bla de. T he rem oved t one r is s ent to t he wa ste to ner c onta iner by the wa ste toner tr an sport screw . Step 7 ( Dis charging) Whe n the OP C drum is ex pose d to the disc harge lamp li ght, p ositi ve and nega tiv e char ges are gene rate d in th e OP C dr[...]

(4) T ransi tion of photoconduct or surface p otent ial (5) Phot oc o nductor dr um se ns i tivit y cor r ec t ion In this mod el, f all i n sen sitiv ity due to long use o f th e pho tocon du ctor dr um is co rrec ted by t he co py lam p light inten si ty to p rev ent a ga inst cons ide rable ch ange in cop y q ualit y . The ph otoc on ducto r d r[...]

Process contro l 1 Toner patch images are formed on the photoconductor surface under the three process conditions (MC grid bias voltage). At the first process control, a toner parch image is formed with the reference grid voltage –410V as the center and ± 30V. At the second or later process control, the MC grid bias voltage deter- mined at the f[...]

Wast e t oner t ran sport mech anism: T he was te to ner is pas sed thro ugh was te to ner t ran sport sc rew 1 an d w ast e ton er pip e 2 to waste toner bottle 3 . W aste toner bottl e 3 is rotated by the mai n driv e gear v ia ge ar 4 to tra nsport ton er ev en ly . When the waste ton er bo ttle is fu ll of waste toner , th e rotatio n torque o [...]

5 Drive system division The fuser unit is rotated by the main drive unit. In case of manual rotation of the fuser unit to remove paper jam, however, excessive loads may be applied to the gears. To prevent against this, the pressure of the upper/lower heat rollers is reduced when the machine clamshells are opened. In addition, the fusing gear is so [...]

2) De tail s of o perat ion 1 The alignment plate and the rear edge plate detect the home positions, and moves to the paper size position. (ADU motor 1, 2, ON) 2 Paper exit, reverse unit operation (ADU gate solenoid ON) 3 Rollers in the ADU rotate in the direction of paper entry. (ADU drive motor ON) 4 ADU paper entry detection (ADU paper entry/exi[...]

[6] DIS ASSEMBL Y AND ASSEM BL Y The de scr iption s are di vid ed in to th e foll owin g secti on s. 1 . Paper feed section 2 . Transport section and power section 3. Fusing section 4. Optical system 5. SPF section 6. Drum section 7. Developing section 8 . Operation panel section and intermediate cabinet 9. Major parts on the frame side 10. Manual[...]

(Not e fo r assembly 2) When a tta ching the pa per f eed sect ion rolle r as s’y , adju st so t ha t th e pap er feed r oll er clut ch an d th e P S fron t rolle r a ss’y clu tch proj ectio n face to ward th e pape r feed si de. 1-3. PS front ro ller ass’y 1 Remove the paper feed unit. (For th e detail s, refer to the 1-1 .) 2 Disengage the [...]

(Not e fo r assembly) At t a ch the pa per f eed rol ler so th at the o ne-w ay clut ch is on the r ear fram e side. (Be careful o f the direction.) At t a ch the r o lle r h older as sh ow n belo w . 1-6. Lower p ap er feed u nit Perfo rm si mil ar l y for th e optional t wo-stage pa per feed unit . Rem ove t wo scr ews an d rem ov e the lo wer pa[...]

3 Remove the hook of the front frame side bearing, and lift it up to remove it toward the upper frame side. Remove the rear frame side connector, and slide and remove the resist roller ass’y toward the rear frame side. 4 Remove the clutch and the gears as shown below. (Not e fo r assembly) 1) Attach so that the resist roller clutch projection is [...]

3. Fu sing s ection 3-1 . Fusi ng uni t remov al 1 Open the front cover. 2 Push the open/close lever down to the right side, and slowly open the upper unit. 3 Remove the fixing screw of the fusing connector cover and remove the cover. 4 Remove the fusing unit hanging wire from the copier frame and remove two connectors from the unit. 5 Remove the s[...]

3-4. Upper separati on pawl replacement 1 Remove the fusing unit, and remove the cover. 2 Put the fusing unit so that the paper guide is on the lower side of the fusing unit (the separation pawl is on the upper side). 3 Remove the tension spring, hold the separation pawl tip and remove it from the supporting section, and remove it from the unit by [...]

3-7. Thermistor/thermostat removal 1 Remove the fusing unit. 2 Remove the fusing cover, and remove the thermistor/thermostat. * Note for assembly • Check that the thermistor center is in contact with the heat roller. • Clean the thermistor surface with alcohol to remove foreign materials. 4. Opt ical sy stem The o pti cal syst em is an inte gra[...]

2 Remove the operation panel, the upper cabinet R, and the right cabinet. 3 Remove the dark box cover upper. 4 Manually move mirror base B. (Within the range where the wire fixing plate fixing screw can be removed.) 5 Remove the wire fixing plate in the front/rear frame side of the copy lamp unit, and remove the wire from the side plates F/R. 6 Rem[...]

3 Rotate the mirror base B counterclockwise to remove. 4 Disconnect the connector from the copy lamp unit on the rear frame side and from the No. 2/3 mirror unit. 5 Rotate the No. 2/3 mirror unit counterclockwise and remove. D. No. 2/3 m irror unit ( m ir ror base B) ass embly Rev ers e t he ab ov e pro cedu res. E. Mi rror base wir e stretch ing C[...]

3 Fix the mirror base wire to the pulley with the mirror base wire fixing screw. 4 Return the 9th winding tip of the mirror base wire to the original position. (Perform the same procedure for the front frame side and the rear frame side.) (Note) After replacing the mirror base drive wire, perform the vertical skew adjustment, the focus adjustment, [...]

4) Copy lamp unit installation (Mirror base A posi tioning) This ad justm e nt mu st be p erfo rm ed in th e foll owin g case s: • When the mirror base drive wire is replaced. • When the mirror base A or B is replaced. • When any part in the dark box is replaced. When in st alling th e mir ror base , re ve rse t he r emo val pr oce dur e of ([...]

5 Remove the drive springs 4 and 5. 6 Remove the zooming rack of the roll holder unit. 7 Remove the lens drive shaft attachment plate. 8 Remove the drive shafts 4 and 5. * When re movi ng th e N o. 4 /5 mir ror unit , r eme mbe r th e pos iti on s (sc ales) of the ar row m ar ks of th e driv e h olde r 4 and 5 . B. No . 4/5 mirror unit assembly Rev[...]

6) Lens w ire replacement A. L ens wire removal 1 Remove the OR guide L and R, and remove the table glass. 2 Remove the dark box cover upper. 3 Remove the lens motor. 4 Remove drive spring 4 and 5. 5 Remove the E-ring which is fixing the roll holder drive shaft, and remove the roll holder unit. 6 Remove the zooming cam and the zooming cam drive gea[...]

7 Remove the drive wire spring and the wire hook from the lens carriage boss. 8 Remove the L pulley and the L drive pulley from the lens wire. B. L ens wire str etching 1. Th is proc edure is per fo rmed in the f ol lo wing case. (1) When the lens unit is removed. (2) When No. 4/5 mirror drive unit is disassembled. (3) When the copy is out of focus[...]

4 Manually turn the zooming can drive gear to fit the zooming cam drive gear hole and No. 4/5 mirror drive unit base hole B. 5 Install No. 4/5 mirror drive shaft unit and the rack. * When in stalling the ra ck, be sure to fit No . 4/5 mirror u nit p rojectio n wi th No . 4 / 5 mirr or dri v e shaf t unit hol e. 6 Loosen the zooming cam screw, and f[...]

5. H igh volt age sec tion Cl ean the MC case , an d the TC / SC cas e every 50K cop ies . Cl ean t he sc ree n gri d, the char ging p lat e (s aw te eth), and t he TC/S C w ir e ev ery 50K cop ie s, an d re pl ac e t he m ev ery 100K co pie s. 5-1. Main charger ( M C) unit 1 Open the front cover. 2 Hold the MC unit lock section, and pull out the M[...]

5-2. T ransfer/separation charg er (TC/SC) unit 1 Open the font cover, open the body up. 2 Push TC/SC unit pawl sections A (2 positions) and lift the front side and pull it out. (Cle aning/repl acement a nd pr ecaution s) 1 Set the charger SP length to 17 ± 1.0mm. 2 The charger wire must be free from distortion and deformation, and must be in the [...]

6-2. Waste toner bottle replacement (requ ired when waste toner f ul l detection/maintenance) 1 Take out the process unit as shown above, <No te> If the unit is removed by holding the toner transport pipe, toner is spilled. Avoid this. 2 Remove the bottle cover. (2 screws) 3 Rotate waste toner bearing 1 A 90 degrees counterclockwise. Hole the[...]

6-3. Drum (Replace every 50K copies) 1 Remove the process unit from the copier. (Refer to 6-1.) 2 Loosen two blue screws which are fixing the drum, rotate the plate slightly to the right and pull it out. 3 Remove the drum. <No te> Be careful not to scratch the drum. 6-4. Blank lamp u nit (Clean every 50K cop i es.) 1 Remove three blue screws [...]

6-6. Cleaner b lade (Replace every 50K co pi es.) 1 Remove the holder from the process unit. (3 blue screws) 2 Remove the cleaning blade. (3 blue screws) 6-7. Drum separation pawl (Repl ace every 50K copies.) Sl ide a nd re move th e blu e pi n to re move th e separ ation pawl. Rep lac e t he st ar-s hape wa sher w i th a n ew one i f it is wor n d[...]

B. DB blad e replacem ent (Repl ace e ver y 120K copi es. ) 1 Remove the old DV blade from the DV cover. (Remove the duplex tape.) 2 At t a ch the n ew DV bl ade wi th the pas teb oard as shown b el ow. (Attach the DV blade to the reference of A and the inscribed line ( 0.2). Do not allow extrusion from the edge. Do not allow covering the inscribed[...]

G. Devel oping uni t co l o r i dent i f i c at i o n Co lor id entif ica tio n is ma de for dif fer ent r esist ance s of th e de velop ing uni t. Color Resistance (K Ω ) Identification signal voltage (DVC) [V] Black 0 0 Red 6 .2 2.25 Blue 12.0 2.97 8.O perat ion pan el/int ermedia te cab inet 1 Open the front cabinet. 2 Remove two screws A , tw[...]

B. Co oli ng f an mo tor Rev erse t he remo val pr oc edur es. <No te> When attaching the cooling fan motor, put the harness sec- tion B and the CFm duct groove section A in the same direction, and pass the harness in the groove. Check that the fan center label is on the back when viewed from the rear of the machine. Check that air blows in t[...]

9-4. Main P W B u nit 1 Remove the rear cabinet upper. 2 Disconnect all the connectors (6 connectors) connected to the main PWB. 3 Remove the main PWB plate (one screw). 4 Remove the main PWB from the plate. (2 screws) 9-5. AC power PWB 1 Remove the main PWB unit. (Refer to 9-3.) 2 Remove the rear cabinet lower. 3 Remove all the connectors (11 conn[...]

10. Mult i paper feed uni t (SF- MF15: option ) 10-1. Separation ro ller 1 Remove three screws and remove the paper feed/take-up roller ass’y. 2 Remove the separation roller. @ When att achin g t he r oller, en gage the D-cu t sec tio n wit h th e gro ove. 10-2. T ake-up roller/paper feed rol ler 1 Remove the manual feed arm spring, the bearing s[...]

1 1. ADU <Rev ers e roller> 1 Remove the extension stopper, and remove the ADU from the copier. 2 Remove the four fixing screws (M4 × 8) of the ADU cover, and remove the ADU cover. 3 Remove the six fixing screws (M4 × 10 = 4 pcs., M4 xc 8 = 1 pc.) of the transport frame lower unit, and remove the unit from the ADU unit. At that time, slight[...]

<Rev ers e roller> 1 Remove three fixing screws (M4 × 10) of the left cabinet, and remove the left cabinet. Remove the plastic E-ring which is fixing the paper exit cabinet unit, and slide the paper exit cabinet unit in the arrow direction and remove it from the copier. 2 Remove two fixing screws (M4, flat) of the paper exit cabinet unit and[...]

[7] ADJUSTMENTS 1. Developing section 1-1. Developing doctor clearance adjustment a. If the clearance between the developing doctor and the MAG roller is improper, the following trouble may occur. • Insufficient coy density • Background copy • Toner splash <Adjustment procedure> (1) Remove the developing unit from the copier. (2) Loosen[...]

(5) Measure the distance from the marking position to the bottom (A) of the developing unit and check that the distance is 17.6mm. If the distance is not as specified above, loosen the MG adjustment plate fixing screw, move the adjustment plate in the arrow directions and perform procedures (3) to (5) again. (6) After completion of adjustment, tigh[...]

2-2. Note for adjustments 1. Only the exposure balance adjustment, the blank lamp adjust- ment, and the copy lead edge adjustment can be performed individually. For the other adjustments, follow the flowchart below. 1. Me chanical ref erence pos it i on adj ust ment (w i t hout copyi ng) 2. A djustm ent while co pying A. No . 2/3 mirror unit paral [...]

2-3. Adjustment of each section A. Lens reference position adjustment In this model, the reference value according to each lens charac- teristics must be entered. With this value, the lens home position is determined. <Procedure> (1) Execute simulation 48-01 • Perform the following key operation. "A" is dis pla yed o n t he t hir [...]

(3) Check to confirm the lens value specified on the lens value label. (4) Insert a screwdriver into hole (P) in the right rear side (paper feed side) of the optical base plate, and adjust the adjustment screw. The scale on the zoom base at section Q in the figure below determines the position of the No. 4/5 mirror cor- responding to the lens value[...]

(4) Calculate the copy magnification ratio. Copy magnification ratio = Copy imag e size Original siz e × 100% (5) Check that the obtained copy magnification ratio is within the specified range (100 ± 0.8%). If it is within the specified range, go to procedure (7). If not, execute simulation 48-1. • Perform the following key operation. "A&q[...]

(2) Turn off/on the power to initialize the lens and No. 4/5 mirror unit. Check the focus in the normal ratio. (3) If the focus is improper, perform the focus adjustment of the normal ratio as follows: (3)-1 Make a copy of the test chart on an A4 or 8 1/2 ″ × 11 ″ paper. (3)-2 Check the resolution at the four corners and the center of the copy[...]

E. Horizontal copy magnification ratio adjustment a. This adjustment is performed to meet the displayed magnifica- tion ratio with the actual one. b. This adjustment must be performed in the following cases: • When the main PWB is replaced. • When the EEPROM in the main PWB is replaced. • When the mirror motor is replaced. • When self diag.[...]

F. Comparison table of lens values and simulation input values Lens display value Sim 48-01 Zoom correction (Enlargement) Zoom correction (Reduction) Sim 48-01 — % Sim 48-01 — % — % +4.0 30 70 70 +3.9 31 69 69 +3.8 31 69 69 +3.7 32 68 68 +3.6 32 68 68 +3.5 33 67 67 +3.4 33 67 67 +3.3 34 66 66 +3.2 34 66 66 +3.1 35 65 65 +3.0 35 65 65 +2.9 36 [...]

G. Vertical skew adjustment a. This adjustment is performed when a skew copy is made as shown below or when a part of the mirror base drive wire or the No. 1/2 mirror base is replaced. <Adjustment procedure> (1) Put an A3 (11" × 17") white paper on the original glass neatly to the glass holding plate and the front frame side as sho[...]

<Adjustment procedure> (1) Make an original for adjustment. Draw parallel lines at 10cm from the both edges of an A3 or 11" × 17" white paper. (Be careful to draw precisely parallel lines.) (2) Set the adjustment original made in (1) as shown below. (3) Make a normal (100%) copy on an A3 or 11" × 17" white paper. (4) Mea[...]

(Example) When La=12mm and Lb=9mm, shift the paper exit side mirror base B rail upward by 1.5mm. • When Lc > Ld, shift the mirror base B rail downward by half of the difference of Lc – Ld. • When Lc < Ld, shift the mirror base B rail upward by half of the difference of Lc – Ld. (When moving the mirror base rail, hold the mirror base r[...]

(3) Remove the original reference plate and the right upper side cabinet, and remove the original table glass. (4) Move the exposure plates a, b, c, and d in arrows directions A and B to adjust exposure. Moving the plates in the direction of arrow A makes the copy darker, and moving in the direction of arrow B makes the copy lighter. (Example) If t[...]

(4) Measure the distance between the copy paper lead edge and the copy image lead edge in each copy. Obtain RRC-A and RRC-B values from the following formulas. If the RRC-A preset value is not proper, the lead edge position varies in each magnification ratio. The RRC-B is to adjust the RRC ON timing for fitting the drum image lead edge and the tran[...]

(11) Make a normal copy and check that the image loss and the void amount are within the specified range. (Specified range) • Imag e los s: 0 ∼ 4m m • Voi d am ount : 1 ∼ 3m m (12) Press the clear key and cancel simulation 50-01. Note: When the RRC-A and RRC-B values are changed in simulation 50-01, be sure to adjust the copy lead edge void[...]

B. Original detecting level adjustment (Original detecting judgement level input) This adjustment is to set the reference value for judgement of presence or absence of an original and to monitor the sensor status. 1 C → ë → 0 → ë → 4 → 1 → PSW → 2 → PSW At that time, the ready lamp lights up and "1" is displayed on the c[...]

[8] S IMULA TION 1. Outlin e Thi s mode l is eq uipp ed wi th the s im ulat ion s featu re whi c h all ows the fol lowi ng oper atio ns wit h the ke ys on t he oper atio n pane l: 1) A dju stme nts 2) S e tt in g of sp ec ific at ion s an d fun cti on s 3) Re set ting tr oubl e c odes 4) Ch eckin g op era tio ns 2. Purpo se The purpo se of the s im[...]

4. Lis t of simul ati on s Main code Sub code Content 1 01 Mirror scanning 02 Optical system sensor check 03 Lens operation check 04 Lens operation aging 2 01 ADF aging 02 ADF sensor check 03 ADF individual load operation check (Paper feed motor forward rotation) 04 ADF individual load operation check (Paper feed motor reverse rotation) 05 ADF indi[...]

* 1 (Simu lati on 26-6 Dest ination setting) Set value Model (Destination) Set value Model (Destination) 0 Japan 6 EX inch series 1 SEC 7 EX AB series 2 SECL 8 EX inch series (for FC) 3 SEEG 9 EX AB series (for FC) 4 SUK 10 Taiwan/China 5 SCA Cassette si z e switch t able SW2 SW1 SW0 Inch series AB series Inch series (For FC) AB series (For FC) Tai[...]

5. Deta ils of simu lations Sim ulat ion inpu t p roced ure : C → ë → 0 → ë Ma i n code Sub c ode Con tent 01 01 Mirror operation check When the print button is pressed, the mirror is scanned at a speed corresponding to the currently set copy magnification ratio. The copy magnification ratio can be arbitrarily set. 02 Optical system sensors[...]

Ma i n code Sub c ode Con tent 02 10 ADF individual load operation check (paper feed motor + paper feed solenoid) 11 ADF individual load operation check (transport motor forward rotation + repulsion motor forward rotation) A57 only 03 02 Sorer sensor state display The ADF sensor ON/OFF states can be monitored with the LED on the operation panel. Wh[...]

Ma i n code Sub c ode Con tent 05 04 DL lamp lighting check The discharge lamp is lighted for 30 sec. 05 BL lamp lighting check The blank lamp is turned on/off every 0.5 sec. 06 01 PSPS operation check The separation pawl is turned on/off 30 times in the following sequence. 02 Paper feed motor operation check The paper feed motor in the second step[...]

Ma i n code Sub c ode Con tent 09 03 ADU rear edge plate aging (SF-2120 only) The rear edge plate is returned to the initial position and shifted to the following size positions. AB series A3 B4 A4R B5R A4 B5 Home position Inch series WLT LG LTR LT INV Home position AB series foolscap area A3 B4 FC A4R A4 Home position Inch series foolscap area WLT[...]

Ma i n code Sub c ode Con tent 21 01 Maintenance cycle setting Used to set the lighting cycle of the maintenance lamp ( è ). When this simulation is executed, the currently set maintenance cycle is displayed on the copy quantity display. After setting the number, press the print button to memory the value. Set value Maintenance cycle 0 50,000 shee[...]

Ma i n code Sub c ode Con tent 24 01 Jam memory/total jam counter clear The cause (position) of a jam which occurred during copying and the jam total counter are cleared, and the jam total counter value is displayed on the copy quantity display. (“000” is displayed because the counter is cleared.) 02 Trouble memory clear The main code and the s[...]

Ma i n code Sub c ode Con tent 26 06 Destination setting Used to set the destination (Japan, SEC, etc.). When this simulation is executed, the currently set destination is displayed on the copy quantity display. Enter the set value and press the PRINT button to store it. Set value Destination 0 Japan 1 SEC 2 SECL 3 SEEG 4 SUK 5 SCA 6 EX inch series[...]

Ma i n code Sub c ode Con tent 26 20 Rear edge void setting Used to set YES/NO of the paper rear edge void. When this simulation is executed, the currently set rear edge void mode is displayed on the copy quantity display. Enter the set value and press the PRINT button to store it. Set value Rear edge void 0 Yes ← Initial value 1N o 26 Auto shut [...]

Ma i n code Sub c ode Con tent 41 01 Original sensor check Used to display the judgement result of the original sensor on the operation panel LED. The original sensor values are read sequentially. If the sensor is interrupted (judged as presence of an original), the LED corresponding to the sensor position is turned on. Sensor name Operation panel [...]

Ma i n code Sub c ode Con tent 42 (No te) Developer counter clear Used to clear the currently installed developing unit counter and to display the developer counter value on the copy quantity display. (“000” is displayed because the counter is cleared.) (Note) The counter is cleared by entering the sub code “01.” 43 01 Fusing temperature se[...]

Ma i n code Sub c ode Con tent 44 06 Grid voltage correction compulsory execution The grid voltage correction is forcibly executed during the simulation. When the operation is completed, the patch forming grid voltage after grid voltage correction is displayed on the copy quantity display. The relationship between the display value and the patch fo[...]

Ma i n code Sub c ode Con tent 44 08 Grid voltage correction, optical dirt correction, drum membrane decrease correction data display Used to display each correction data of the grid voltage correction, the optical dirt correction, and the drum membrane decrease correction on the copy quantity display. Si nce ther e are two or mo re disp lay it ems[...]

Ma i n code Sub c ode Con tent 44 10 Drum voltage correction drum surface data, patch data display Used to display the drum surface data and the patch data after execution of the grid voltage after simulation 44-5, 6 or during normal operation is displayed on the copy quantity display. Since there are two or more display items, the third digit is u[...]

Ma i n code Sub c ode Con tent 46 01 Exposure level adjustment Used to set the copy density (copy lamp output voltage) in each exposure mode. When this simulation is executed, warm-up is started and the currently set manual (ME) upper limit value is displayed on the copy quantity display. When warm-up is completed, the ready lamp lights up. When th[...]

Ma i n code Sub c ode Con tent 48 02 Paper transport direction magnification ratio adjustment Used to set the horizontal (paper transport direction) magnification ratio. When this simulation is executed, warm-up is started and the currently set mirror speed correction value is displayed on the copy quantity display. When warm-up is completed, the r[...]

Ma i n code Sub c ode Con tent 51 02 Resist amount adjustment Used to set the warp amount of paper in the resist section. When this simulation is executed, warm-up is started and the currently set tray resist amount is displayed on the copy quantity display. After completion of warm-up, the ready lamp is lighted. Press the PRINT button to start cop[...]

Ma i n code Sub c ode Con tent 53 06 ADF timing sensor adjustment When this simulation is executed, the paper exit reverse sensor original judgement level is adjusted. After completion of this adjustment, the original judgement level is displayed on the copy quantity display. Di splay r ang e: 0 ∼ FF h (h exad ecim al) 6. U ser simulat ion This s[...]

(2) User simu l ation Simulation procedure State Paper jam/Maintenance/ Mini maintenance/ Paper supply/Toner supply/ Warning LED Copy quantity display Copy button LED 1. P r ess the tr ay sel ectio n ke y for 5 s ec or mor e. User simulation input is allowed. Blink OFF 2. En ter the si mulatio n co de No. w ith the1 0-key p ad. Selection of simulat[...]

[9] SELF DIAGNOSTICS 1. S umm ar y/p urp os e Thi s mode l has the s elf d i ag fu nc tio n for t he fo ll ow in g pur p oses : 1) Wh en a t r ouble occu rs i n th e ma ch ine, the m ach ine det ects th e tr ouble a nd di spl ays th e trou ble cont ent on th e c opy qua nti ty dis - pla y to al e rt the custom er an d t he se rvice man. 2) Wh en an[...]

Trouble code Sub code Content Condition L1 00 Mirror feed trouble • Whe n ini tia lizing, MHPS is n ot turn ed o ff with in 1. 5 sec from st art ing fe ed ing o f t he m irror. • When copy ing, MHP S is no t tur ned of f wit hin 0 .5 se c fr om st art ing fe ed ing o f t he m irror. • When f e edin g the m irr or is st arte d duri ng cop yin [...]

Trouble code Sub code Content Condition F1 00 Sorter communication error • An er ro r occ ur re d in co mm u nic at ion be tw ee n th e so r te r and th e ma in un it. 02 Transport motor trouble • Durin g rota tion of the transpo rt motor, the rotation pulse is no t se ns ed fo r 0. 5 s ec o r m ore . 04 Bin upper limit/lower limit trouble • [...]

[10] SERVICING AT MEMORY TROUBLE AND MAIN CONTROL PWB RE- PLACEMENT 1. General The EEPROM in the control PWB and the EEPROM are storing various set values, adjustment values, and counter values. These data are very important and used for operating the machine properly and for service control. In the following cases, therefore, various set values, a[...]

NO YES NO YES NO YES NO YES NO YES 1 Is the tone r de nsity ref eren ce value re co rd ed ? Use S im 43- 01 t o s et the fusi ng tem p erature U s e Si m 22- 07 to s et t h e dev el oper r eplac e m en t c y cl e c oun t er to t he s pec ifi ed va lue Use S im 22- 06 t o s et the developer c o unter Use Sim 21-0 1 to se t the main ten ance cy cle t[...]

4. Set value recording sheet Memorize set values in the column of "Set value" for efficient servicing when the memory trouble occurs and the EEPROm is replaced. Make a copy of this sheet and use with the service sheet. Purpose/kind Section Contents Main code Sub code Set value Description Adjustment Paper feed section 51 02 Adjustment val[...]

5. Memory simulation list Purpose/kind Section Contents Ref. page Main code Sub code Default value Description Adjustment Paper feed section 51 02 50 Adjustment value of contact pressure of the paper on the main body resist roller 8-19 Optical unit 50 01 Copy paper lead edge void amount adjustment (Resist adjustment A) 8-18 Copy paper lead edge voi[...]

[11] MAINTENANCE 1. Maintenance cycle and maintenance items Maintenance of the SF-1020/1120 should be performed at every 50K. <Content> ★ = Lubricate, F = Clean, v = Adjust, b = Replace/attach, ê = Shift position ✕ = Check (Clean, replace, or adjust if necessary.) * The toner consumption and the waste toner bottle replacement cycle are t[...]

[12] ELECTRICAL SECTION 1. System block diagram GND VD2 VFM PODPW B LM MI R M VHM O C S W O R S L E D KOUG AKU PWB GND VB1 VB1 VD1 T F D P S P S C F M M M GND VB1 GND GND VB1 VD1 M M R E ADF GND GN D VD1 M H P S SOTE R VB1 GND GND VD1 VD1 TH VB1 GND VB1 GND VCL BL PWB ORS PW B OP PWB DL PROCON DMS VCL POD 2 VD1 GND DS W VHout VH SF-1120 ONLY VB1 GN[...]

System operation when the power is turned on: Pow er ON No No JAM RPL ON PS W O N RPL OFF Initial s e tting Memory tr a nsf er Trouble Warm up End o f warm up Rac i ng End of r acing Co py cycl e End of copying Heat er lampp ON Mirror initial operation Lens i nitial opera tion Proce ss contoro l Tone r density control 12 – 2[...]

2. Main circuit (1) Block diagram ORS LED CFMPWM BL PWB LM AE DMS PROCON MM RTH DC PWB PR PR Q5 PR IC20 IC14 FE T1 IC21 PCG MCG IC2 IC17 LED0,LE D1,CFMPWM IC5 TM0,TM1 TM TMa ,TM b VFM IC10 VFMP WM MHPS,LHPS AEG 0,AEG1 LM-A,/L M-A LM-B,/L M-B Q8 Q2 OFF IC15 IC9 PR- OF F VMF 2 ADF SOR TER ADU D- DT R, A -DT R, S- DTR TC ,TRC, RRC,PR,MP FC PSPS,C PFC1[...]

(2) CPU (IC6) SC3041K12F 1 General The CPU controls the loads of the main body and controls the system in synchronization with data transmission and reception through the optional controllers and serial data communication line. 2 Features The SC3041K12F is a high performance single-chip micro computer which is integrated with the necessary peripher[...]

4 Internal block diagram PS 3/A19 PS 2/A18 PS 1/A17 PS 0/A16 P27 /A15 P26 /A14 P25 /A13 P24 /A12 P23 /A11 P22 /A10 P21/ A9 P20/ A8 P17/ A7 P16/ A6 P15/ A5 P14/ A4 P13/ A3 P12/ A2 P11/ A1 P10/ A0 P95 / SCK1/ IRQ 5 P94 / SCK0/ IRQ 4 P9 3/RX D1 P9 2/RX D0 P91/T XD1 P90/T XD0 Vc c Vss P37/D 15 P36/D 14 P35/D 13 P34/D 12 P33/D 11 P32/D 10 P31/D 9 P30/D [...]

5 CPU SC3041K12F (IC1) pin signal Pin No. Port Signal name IN/OUT H/L Specifications 1 VCC VCC Power (+5V) 2 P60 CVFMPWM OUT Fan motor (PWM output) signal 3 PB1 SCL OUT Serial clock signal for EEPROM 4 PB2 MMPWM OUT Main motor (PWM output) signal 5 PB3 SDA OUT Serial data for EEPROM 6 PB4 /MIR-A OUT H Mirror base motor drive signal -A 7 PB5 MIR-A O[...]

Pin No. Port Signal name IN/OUT H/L Specifications 52 P27 A15 Address signal 53 P50 A16 Address signal 54 P51 LHPS IN L Lens home position signal (LOW at 100%) 55 P52 PPD IN H Transport pass sensor signal (HIGH when paper is sensed.) 56 P53 MCS IN H Drum marking sensor signal 57 VSS VSS Power (GND) 58 P60 DATA0 IN Matrix input 0 (LSI51) 59 P61 DATA[...]

(3) I/O (IC8) CXD1095Q 1 General I/O converts data (command) from the CPU into control signals. The CXD1095Q is a general-purpose interface element, and has 4.5 sets of 8-bit I/O ports to allow setting of input and output operations of parallel data by the program or the hardware. 2 Features 8-bit parallel I/O port x 4.5 ports 3 Pin arrangement 32 [...]

4 Internal block diagram 5 I/O: CXD1095Q (IC8) pin signal Pin No. Port Signal name IN/OUT H/L Specifications 1N C 2N C 3 PB1 DTR OUT L Option receive allow signal 4 PB2 SRES OUT H Option reset signal 5 PB3 TC OUT H Total counter control signal 6 PB4 TRC OUT H Transport clutch control signal 7 PB5 RRC OUT H Resist roller clutch control signal 8 PB6 [...]

Pin No. Port Signal name IN/OUT H/L Specifications 12 PC1 CPFC1 OUT H Tray 1 paper feed clutch control signal 13 PC2 CPEC2 OUT Tray 2 paper feed clutch control signal 14 PC3 CPFC3 OUT Tray 3 paper feed clutch control signal 15 PC4 CPFC4 OUT H Tray 4 paper feed clutch control signal 16 PC5 CS2M OUT H Tray 2 motor control signal 17 PC6 CS3M OUT H Tra[...]

(4) Detector circuit of sensor signal The LS 151 sel ects on e si gnal of D0 ∼ D7 acc ording to the co mbina- tion of SEL A ∼ C s ign al s (H, L) and out put s i t to Y. Selec tion o f D0 ∼ D7 fo r SEL A ∼ C is mad e as sho wn i n the t able below. SEL C SEL B SEL A Y 0000 0011 0102 0113 1004 1015 1106 1117 The sensor signal is in the follo[...]

(6) Heater lamp control circuit 1 General The heater lamp control circuit detects the heat roller surface temperature with the thermistor, converts it into a voltage, and out- puts it to the CPu analog input pin. The CPU converts analog signals into digital signals, compares them with the value set by test commands to turn on/off the heater lamp, m[...]

[When the heat roller surface temperature is lower than the set temperature] a. Since the thermistor pin voltage is higher then the set level, the output signal HL from the CPU is driven to LOW. b. This HL signal is passed through TR Q3 to the solid state relay (SSR). When, therefore, the HL signal is LOW, the internal triac turns on. c. When the i[...]

(9) AE (Auto Exposure) sensor circuit The AE sensor circuit is composed of the AE sensor PWB; which is composed of the photo diode, the I-V convertor circuit, and th e amplifier circuit; and the amplifier circuit on the control PWB. Operation amplifier A performs I-V conversion of the original density level (minute current) from the sensor. Operati[...]

2 Operation • When "td" (= 30msec) passes after the voltage reaches 4.25V by turning on the power, the output is drive to HIGH. "td" is set by the external capacitor (C106). Block diagram (12) Operation panel 1 General • The operation circuit is composed of the key matrix circuit and the display matrix circuit. Key d e t ect[...]

(13) EnergyStar circuit description The EnergyStar circuit composition saves power consumption when the user leaves the machine with the power ON. Normally in a copy mode or in the standby mode, the main PWB connector HL signal is HIGH (5V) and the AC PWB relay (TY201) is turned on to supply power to all the power transformers and the optional powe[...]

(14) ADU circuit description (1) ADU circuit block diagram VH SUB D C PWB VB IC4 VD 1 2 3 2 DPF C DRRC CL UT CH DRRC DPF C IC3 DRRC DP FC 3 DPHP S1 DPHP S2 DPED 1 DPHP S1 DPHP S2 DPE D1 SPPD1 DPO D DPT D DPE D2 IC 6 IC 1 CPU H8 /32 92 D-TX D D-RES D-DTR IC9 DO-D7 /PAM-OU T /WH DA TA LUT CH CL UT CH STEPPER D RI VER 2 PAM2/ B PAM2 B PAM2/ A PAM2 A P[...]

(2) ADU CPU (IC1) 1. Outline The CPU controls the loads of the ADU unit and performs data trans- mission through the copier main PWB and the serial data line to make synchronization with data transmission to control the ADU unit. 2. Feature The H8/3297 series is a single chip microcomputer which integrates the H8/300CPU and the peripheral devices. [...]

4. Pin arrangement (FP-64A: Top view) 5. ADU PWB Port List Pin No. Used Port Sig. Name I/O Active Note 1 P5-0 TXD O Copier UART signal 2 P5-1 RXD I Copier UART signal 3 P5-2 DSR O Copier UART signal 4 /RES External reset pin 5 /NMI Non-maskable pin (H-lev. fixed) 6 VCC Power (VD) 7 /STBY Standby pin (H-lev. fixed) 8 VSS Power (GND) 9 XTAL Clock pin[...]

Pin No. Used Port Sig. Name I/O Active Note 42 A6 Address signal 43 A5 Address signal 44 A4 Address signal 45 A3 Address signal 46 A2 Address signal 47 A1 Address signal 48 A0 Address signal 49 D0 Data signal 50 D1 Data signal 51 D2 Data signal 52 D3 Data signal 53 D4 Data signal 54 D5 Data signal 55 D6 Data signal 56 D7 Data signal 57 P4-0 DPFC O [...]

IC8 (SLA4391) internal diagram SPM2 A SPM2-A SPM2 B SPM2-B PAM1 /A PAM1 /B PAM1 A PAM1 B VB COM 9 I1 1 I2 2 I3 3 I4 4 I5 5 I6 6 I7 7 GND 8 O7 16 O6 15 O5 14 O4 13 O3 12 O2 11 O1 10 IC2 uLN2003A VH D15 1SS133 R20 10KJ 1/4W CNB-13 CNB-11 CNB-9 CNB-7 VH R17 24KJ VH R18 2.7KJ R19 10KJ Q1 2SC1740S R28 2.7KJ R29 10KJ Q3 2SC1740S R27 24KJ R21 2.7KJ R22 10[...]