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Konica Minolta CF5001 manual

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Table of contents for the manual

  • Page 1

    CF5001 Ser vice Man ual [General][...]

  • Page 2

    CF5001 Ver.1.0 Sep. 2003 CONTENTS i I OUTLINE II UNIT EXPLANA TION CONTENT S SAFET Y AND IMPO R T ANT W A RNING ITEMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . S- 1 IMP ORTA NT N OTICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .[...]

  • Page 3

    CONTENTS CF5001 V er.1.0 Sep. 2003 ii I OUTLINE II UNIT EXPLANA TION 6.1 1 2nd transfer rolle r /L cleaning (Sub st ep 4 ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 8 6.12 T oner collection (Sub step 5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .[...]

  • Page 4

    CF5001 Ver.1.0 Sep. 2003 CONTENTS iii I OUTLINE II UNIT EXPLANA TION 7.2 Opera tion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-37 7.2.1 Toner collection control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [...]

  • Page 5

    CONTENTS CF5001 V er.1.0 Sep. 2003 iv I OUTLINE II UNIT EXPLANA TION 14.5 Gamma corre ction contr ol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6 8 15. OTH ER CO NTROL S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .[...]

  • Page 6

    SAFE TY AND IMPORTA NT WAR NING IT EMS S-1 Read ca refully the S af ety and Important W ar ning Items described belo w to unders tand them bef ore doing ser- vic e wo rk. Because of possib le hazards to an ine x perienced person servicing this copier as well as the r isk of damage to the copier , Minolta Cor pora tion strongly recommends that all s[...]

  • Page 7

    SAFET Y AND IMPO RTANT WA RNING ITEM S S-2 1. MODIFIC A TIONS NOT A UT HORIZED BY MINO L T A Minolta copiers are renow ned f or their high re liability . This reliability is achie v ed through high- quality design and a solid service network. Copier design is a highly c omplicated and d elicate process where numer ous mechanical, ph ysic a l, and e[...]

  • Page 8

    SAFE TY AND IMPORTA NT WAR NING IT EMS S-3 2. CHEC KPOIN TS WHEN PERFORMI NG ON-S ITE SER VI CE Minolta copiers are e xtensively t ested bef ore shipping, to e nsure that all applicab le saf ety standards are met, in order t o protect the cu stomer and c ustomer engineer ( hereafter ca lled the CE) from the risk of injury . Ho we ver , in daily us [...]

  • Page 9

    SAFET Y AND IMPO RTANT WA RNING ITEM S S-4 • Do not bu ndle or ti e the po wer c ord. Ov erheating ma y occur there, leading to a risk of fire . • Check whether dust is collected around the pow er plug and wall outlet. Using the power plug and w all outlet withou t removing dust may result in fire. • Do not inser t the pow er plug into the wa[...]

  • Page 10

    SAFE TY AND IMPORTA NT WAR NING IT EMS S-5 2.2. Installation Requir ements • P a y attentio n to the point to which the ground lead is connected. Connecting the g round lead to an improper point such as the points listed below results in a risk of e x plosion and electric shoc k: a. Gas pipe (A risk of e xplosion or fire e xists.) b . Lightning r[...]

  • Page 11

    SAFET Y AND IMPO RTANT WA RNING ITEM S S-6 • The c opier gen erates oz one gas during oper ation, b ut it is not sufficient to be har mful to the human body . If a bad s mell of ozone is p resent in the f ollowing cases , v entilate the room. a. When the copier is used in a poorly ventilated room b . When m aking a lot of copies c. When using m u[...]

  • Page 12

    SAFE TY AND IMPORTA NT WAR NING IT EMS S-7 • T ak e e v er y care when servicing with the ex ter nal co v er detac hed. High-v oltage e xists around the d r um unit. A risk of electric shoc k e xists. W ARNING: Saf ety Chec kpoints • Check the ext er ior and fr ame f or edges, b urrs , and other damages. The user or CE ma y be injured. • Do n[...]

  • Page 13

    SAFET Y AND IMPO RTANT WA RNING ITEM S S-8 W ARNING: Saf ety Checkpoints • A fter replac ing a par t to which A C v oltage is applied (e.g., o ptical lamp and fixing lamp), be sure to chec k the ins tallation stat e. A risk of f ire e xists . • Check the interlock swit ch and actuator f or loosening and che ck whet her the interlock func tions [...]

  • Page 14

    SAFE TY AND IMPORTA NT WAR NING IT EMS S-9 3. MEAS URES T O T AKE I N CASE OF AN ACCIDENT • If an ac cident has occurr ed, the dist r ib utor who has been notified first mus t immediately tak e emerg ency measures to pro vide relief to aff ected persons and to p rev ent fur ther dama ge. • If a repor t of a serious acc ident has been rece ived [...]

  • Page 15

    SAFET Y AND IMPO RTANT WA RNING ITEM S S-1 0 The Center f or De vices and Radiological Health (CDR H) of the U. S. F ood and Dr ug Administra tion implemented regulations f or laser products manuf actured sinc e A ugust 1, 1976. Com pliance is mandatory f or products m ar- ke ted in the United States . This copier is cer tified as a “Class 1” l[...]

  • Page 16

    SAFE TY AND IMPORTA NT WAR NING IT EMS S-11 This machine is provided with the f ollowing saf ety circuits to pre v ent machine fault s from resulting in serious accidents . • Ov erall protection cir cuit • Fixing upper lamp /1 (L 2), Fixing upper lamp /2 (L3), Fixing lo wer lamp (L4) ov erheating pre vention ci rcuit These saf ety ci rcuits are[...]

  • Page 17

    SAFET Y AND IMPO RTANT WA RNING ITEM S S-1 2 2. Fix ing up per lamp / 1 (L 2), F ixing uppe r lamp /2 ( L3), F ixi ng lower l amp (L4) overheat ing prev enti on circ uit 2.1 P r otection by s oftware The output v oltage from fixi ng temperat ure sensor /1 (TH1) and fixing tem perature sensor /2 (TH2) is read by the CP U . If this v oltage is abnorm[...]

  • Page 18

    SAFE TY AND IMPORTA NT WAR NING IT EMS S-13 Caution labels sho wn below are attached in some areas on/in the machine. When accessing these area s for maintenanc e, repair , or adjustment, special care should be tak en to av oid b ur ns and elec tric shock. CA UTION INDICA TION OF W ARNING ON THE MA CHINE Please adhere to all caution labels to avoid[...]

  • Page 19

    SAFET Y AND IMPO RTANT WA RNING ITEM S S-1 4 CA UTION - Please adhere to all caution labels to avoid burns or injury. 8050sf004e[...]

  • Page 20

    SAFE TY AND IMPORTA NT WAR NING IT EMS S-15 CA UTION 8050sf005e Please adhere to all caution labels to avoid burns or injury.[...]

  • Page 21

    SAFET Y AND IMPO RTANT WA RNING ITEM S S-1 6 CA UTION 8050sf006e - Please adhere to all caution labels to avoid burns or injury.[...]

  • Page 22

    SAFE TY AND IMPORTA NT WAR NING IT EMS S-17 CA UTION 8050sf007e Please adhere to all caution labels to avoid burns or injury.[...]

  • Page 23

    SAFET Y AND IMPO RTANT WA RNING ITEM S S-1 8 CA UTION 8050sf008e Unplug the machine before removing platen glass. Debrancher le copieur avant de retirer la vitre d'exposition. Desenchufe la maquina antes de quitar el vidrio. Desconecte a unidade da tomada antes de remover o vidro de exposicao. PS ~ - Please adhere to all caution labels to avoi[...]

  • Page 24

    CF5001 Ver.1.0 Sep. 2003 OUTLINE OF SYSTEM 1-1 I OUTLINE I OUTLINE 1. OUTLINE OF SYSTEM [1] Main body [8] T rimmer (TMG-3) [2] LCT (C-208) [9] Finisher (FN-9) [3] Printer controller (Fier y S300 50C-K) [10] Finisher (FN-120) [4] Hard disk (H DD-7) [11] Puncher (PK-5 ) [5] Expansion memory (256MB x 4) [12] Cov er sheet f eeder (Co ver Inser ter D) [[...]

  • Page 25

    PRODUCT SP ECIFICATIONS CF5001 V er.1.0 S ep. 2003 1-2 I OUTLINE 2. PR ODU CT SPECIFIC A TIONS A. T ype T ype: Console typ e (floor-mounte d type) Cop ying method: T andem intermediat e tr ansf er type electrostatic method Orig inal ta bl e: Fi x ed Original alignment: Rear left side as re fer ence Photosensitiv e material: OPC Sensitizing method: [...]

  • Page 26

    CF5001 Ver.1.0 Sep. 2003 PRODUCT SPEC IFICATIONS 1-3 I OUTLINE First cop y time: Full color : Less than 7.6 sec. (platen mode , lif e siz e, man ual density , paper fee d tra y /1 to /3, plain paper , without gloss, f ace up paper e xit, A4 or 8.5 x 11) Monochrome: Less th an 7.6 sec. ( platen mode, lif e size , manual dens ity , paper fee d tra y [...]

  • Page 27

    PRODUCT SP ECIFICATIONS CF5001 V er.1.0 S ep. 2003 1-4 I OUTLINE C . Cop y paper Standard spe cified paper : F or full color : Neusiedler Color Cop y 90g/m 2 Hammer mill Tidal 75 g/ m 2 F or blac k-and-white: Konic a Business Class 80 g/m 2 Hammer mill Laser Color Copy Photo White/ Brightness 96 105 g/m 2 Ordinary paper: High quality paper , coated[...]

  • Page 28

    CF5001 Ver.1.0 Sep. 2003 CENTER CROSS SECTION 1-5 I OUTLINE 3. CENTER C R OSS SECTI ON [1] Process unit [12] P aper f eed t ra y /3 [2] De veloping unit /Y [13] P aper fe ed tra y /2 [3] De veloping unit /M [14] P aper f eed tra y /1 [4] Wri te un it /Y [15] ADU [5] Wri te u nit /M [16] Rev erse sect ion [6] Write unit /C [17] P aper e xit tra y [7[...]

  • Page 29

    PAPER PATH CF5001 V er.1.0 Sep. 2003 1-6 I OUTLINE 4 . PA P E R PAT H Fr o n t s i d e 8050ma1029[...]

  • Page 30

    CF5001 Ver.1.0 Sep. 2003 PAPER PATH 1-7 I OUTLINE Back sid e 8050ma1030[...]

  • Page 31

    DRIVE SYSTEM DIAGR AM CF5001 Ver.1.0 Sep. 2003 1-8 I OUTLINE 5. DRIVE SYSTEM DIA GRA M 5.1 Drum d rive [1] Dru m mot or /Y , /M , /C, /K (M 14, M15, M16, M1 7) [2] Dr um [1] [2] 8050ma1003[...]

  • Page 32

    CF5001 Ver.1.0 Sep. 2003 DRI VE SYSTEM DIAGRAM 1-9 I OUTLINE 5.2 T ransfer belt con vey ance/pressure d rive [1] 1st tr ansf er roller /Y [9] Belt driv e rolle r [2] Drum [10] While in stand-b y (T otal release) [3] [4] 1st tran sf er roller /M 1st tran sf er roller /C [11] Black-an d-white mode (Pre ssure on 1st transf er roller /K only) [5] 1st t[...]

  • Page 33

    DRIVE SYSTEM DIAGR AM CF5001 Ver.1.0 Sep. 2003 1-10 I OUTLINE 5.3 Developing d rive [1] T oner collect ion scre w [5] T oner c onv eyanc e scre w [2] T oner agitat or screw [6] De v eloping coupling /1 [3] Dev eloping coupling /2 [7] De veloping slee ve [4] Dev e loping motor /Y , /M, /C, /K (M20, M21, M22, M23) 8050ma1005 [1] [7] [6] [5] [4] [3] [[...]

  • Page 34

    CF5001 Ver.1.0 Sep. 2003 DRI VE SYSTEM DIAGRAM 1-11 I OUTLINE 5.4 T oner su pply drive [1] T oner s upply gear / A (Same s haft as C) [8] T oner supply motor /C (M51) [2] T oner b ottle clutc h /Y (MC1 4) [9] T oner bottle mot or (M53) [3] T oner b ottle clutch / M (MC15) [10] T oner supply motor /M (M50) [4] T oner b ottle clutch /C (MC16) [11] T [...]

  • Page 35

    DRIVE SYSTEM DIAGR AM CF5001 Ver.1.0 Sep. 2003 1-12 I OUTLINE 5.5 T oner co llection drive [1] Drum waste toner receiving por t [5] V er tical conv e yance pipe [2] Horizontal con v ey ance scre w [6] Belt collection scre w [3] Horizontal con v ey ance pipe [7] T ransf er belt motor ( M18) [4] P aper f eed motor (M41) [8] Belt collection dr iv e ca[...]

  • Page 36

    CF5001 Ver.1.0 Sep. 2003 DRI VE SYSTEM DIAGRAM 1-13 I OUTLINE 5.6 Fixing drive [1] Web motor (M54) [5] Fixing ro ller /L [2] Fixing roller /U [6] Fixing motor (M29) [3] One-wa y clutch [7] Fixing paper e xit roller [4] Pres sure/re lease cam FRONT 8050ma1008 [2] [1] [3] [4] [5] [6] [7] [1][...]

  • Page 37

    DRIVE SYSTEM DIAGR AM CF5001 Ver.1.0 Sep. 2003 1-14 I OUTLINE 5.7 P aper feed drive 5.7.1 P aper feed tray / 1 to /3 drive [1] Pre-registr ation roller /3 [8] P aper fee d roller /3 [2] Pre-registr ation clutch /3 (MC12) [9] Doubl e fe ed prev ention roller /2 [3] Drive c oupling /3 [10] T ra y up driv e motor /3 (M38) [4] P aper f eed motor ( M41)[...]

  • Page 38

    CF5001 Ver.1.0 Sep. 2003 DRI VE SYSTEM DIAGRAM 1-15 I OUTLINE 5.7.2 V ertical con vey ance drive [15] Up/down w ire [22] Fee d roller /2 [16] T ra y up driv e motor /1 (M40) [ 23] P aper fe ed clutc h /2 (MC9) [17] Pa per feed roller /1 [24] Dr iv e coupling /2 [18] Feed roller /1 [25] Pre-registr ation roller /2 [19] Pa per f eed clutch /1 (MC7) [[...]

  • Page 39

    DRIVE SYSTEM DIAGR AM CF5001 Ver.1.0 Sep. 2003 1-16 I OUTLINE 5.8 ADU dr ive 5.8.1 By-pass t ray drive [1] Up/down gear [5] Drive c oupling [2] P aper f eed roller /BP [6] F eed roller / BP [3] Double feed pre vention r oller /BP [7] P aper f eed clutch / BP (MC6) [4] P aper f eed motor ( M41) [8] T ra y up driv e motor /BP (M35) [4] [3] [5] [1] [6[...]

  • Page 40

    CF5001 Ver.1.0 Sep. 2003 DRI VE SYSTEM DIAGRAM 1-17 I OUTLINE 5.8.2 Registration drive/loop drive [1] Loop ro ller motor (M31) [3] Registr ation roller [2] Loop ro ller [4] Registr ation ro ller motor (M30) [3] [2] [4] [1] 8050ma1012[...]

  • Page 41

    DRIVE SYSTEM DIAGR AM CF5001 Ver.1.0 Sep. 2003 1-18 I OUTLINE 5.8.3 ADU con vey ance drive [1] Intermediate conv ey ance roller /2 [10] ADU con ve yance clutch /2 (MC1 ) [2] Intermediate con ve yance clutch / 2 (MC4) [11] 2nd transf er se ction [3] P aper f eed motor ( M41) [12] 2nd tr ansf er pre ssure/release motor (M34) [4] ADU pre- registration[...]

  • Page 42

    CF5001 Ver.1.0 Sep. 2003 DRI VE SYSTEM DIAGRAM 1-19 I OUTLINE 5.8.4 Re verse paper exit drive [1] Re v erse ga te [4] Re v erse/e xit roller / 2 [2] Re v erse/e xit motor (M33 ) [5] D ecurler r oll er [3] Re v erse/e xit sol eno id (SD4 ) 8050ma1014 [2] [1] [5] [4] [3][...]

  • Page 43

    DRIVE SYSTEM DIAGR AM CF5001 Ver.1.0 Sep. 2003 1-20 I OUTLINE 5.9 Main bo d y pa per e xit dr ive [1] Rev erse gate [4] Re v erse/e x it roller /2 [2] Dri v e coupling [5] Timing belt [3] Rev erse/exit motor (M33) [6] P aper e xit roller 8050ma1015 [3] [4] [1] [2] [5] [6][...]

  • Page 44

    CF5001 Ver.1.0 Sep. 2003 DRI VE SYSTEM DIAGRAM 1-21 I OUTLINE 5.10 Scanner dr ive [1] Exposure unit [4] Scanner drive wire /R [2] Scanner driv e wire /F [5] Scan ner motor (M1) [3] V -mirror uni t FRONT 8050ma1016 [5] [1] [4] [3] [2][...]

  • Page 45

    IMAGE CREATIO N PROCESS CF5001 Ver.1.0 Sep. 2003 1-22 I OUTLINE 6. I MA GE CR EA TION PROCESS 6.1 Ima ge creat ion f lo w an d func tion Step Process Function Step 1 Charging process F orm s the la y er of charges on the photosensitiv e drum. Step 2 Laser e xposure proces s F or m an electrostatic latent image on the photosensitiv e dr um. Step 3 D[...]

  • Page 46

    CF5001 Ver.1.0 Sep. 2003 IMA GE CREATION PROCESS 1-23 I OUTLINE 6.2 Char ging process (Step 1 ) The charging c orona, ha ving a g old-plated tungsten wire, is applied w ith a high DC v oltage (minus) to neg- ativ ely charge the surf ace of the p hotosensitiv e drum b y wire discharge . The char ging corona is p rovided with a charging contro l plat[...]

  • Page 47

    IMAGE CREATIO N PROCESS CF5001 Ver.1.0 Sep. 2003 1-24 I OUTLINE 6.4 Developing pr ocess (Step 3) In the elec trostatic latent image on the photosensitive drum, the n on-image section is negat ively charged and the imag e section is neutralized . When toner , that is , negativ ely charged is brought close to t he photo- sensitivity drum, toner is at[...]

  • Page 48

    CF5001 Ver.1.0 Sep. 2003 IMA GE CREATION PROCESS 1-25 I OUTLINE 6.5 1st transfer pr ocess (Step 4) T oner on each drum of Y , M, C and K is transf erred onto the t ransf er belt, this allows for ov erlapping of the colors . This mov ement of toner from the drum to the transf er belt is refer red to as the 1st tran sf er , where the tran sf er of to[...]

  • Page 49

    IMAGE CREATIO N PROCESS CF5001 Ver.1.0 Sep. 2003 1-26 I OUTLINE 6.6 2nd transfer pr ocess (Step 5) The oper ation to tran sf er the toner imag e of the fo ur colors on t he transf er belt to paper is ref erred to as the 2nd transf er . While in the 2nd transf er , the 2nd transf er roller / L prov ided at the lower section of the transf er belt con[...]

  • Page 50

    CF5001 Ver.1.0 Sep. 2003 IMA GE CREATION PROCESS 1-27 I OUTLINE 6.8 Drum c leaning (Su b step 1) A drum that has com pleted the 1st tr ansf er has a residual amount of toner that is left from the transf er pro- cess . The process to remo ve toner is ref erred to as drum cleaning. Drum cleaning is made b y scr aping toner adher ed to the drum surf a[...]

  • Page 51

    IMAGE CREATIO N PROCESS CF5001 Ver.1.0 Sep. 2003 1-28 I OUTLINE 6.10 T ransfer belt c leaning (Sub step 3) A tr ansf er belt t hat has complete d the 2nd tr ansf er has a residual amount of toner that is left from the tr ans- f er process . The process to remo ve toner is re fer red to as a t ran sf er belt cleaning. A tr ansf er belt cleaning is m[...]

  • Page 52

    CF5001 Ver.1.0 Sep. 2003 IMA GE CREATION PROCESS 1-29 I OUTLINE 6.12 T oner collection (Sub step 5) T oner that w as cleaned in the d rum cleaning section and t he transf er belt cleaning section is collected into the toner collection bo x through t he toner collection scre w . 6.13 Pr ocess speed In combination of the w eighing of paper and the su[...]

  • Page 53

    IMAGE CREATIO N PROCESS CF5001 Ver.1.0 Sep. 2003 1-30 I OUTLINE Blank Page[...]

  • Page 54

    CF5001 Ver.1.0 Sep. 2003 SCANN ER 2-1 II UNIT EXPLANA TION II UNIT EXPLANA TION 1. SCANNE R 1.1 Composition Symbol Name Func tion or method [1] CCD boar d (CCDB) Conv er ts an analog signal to a digital signal [2] DF reset read s witch (RS1) Detect s whether the platen cov er or RADF is closed Magnet sens or type [3] CCD unit Con v er ts the read i[...]

  • Page 55

    SCANN ER CF5001 V er.1.0 Sep. 2003 2-2 II UNIT EXPLANA TION 1.2 Operation 1.2.1 Home position search in the exposure unit The e xposure units searches f or the home pos ition when th e main switch (SW2) or the star t b utton is turned on. The o perat ion ma y diff erent depending o n the state of t he sca nner HP s ensor . A. When PS1 is off B. Whe[...]

  • Page 56

    CF5001 Ver.1.0 Sep. 2003 SCANN ER 2-3 II UNIT EXPLANA TION 1.2.2 Shading correction reading The e xposure unit star ts the shading c orrection w ith the whit e standard board attac hed to t he platen glass once it completes the home position search. In the shading correct ion operation, the white correc tion is perf or med t wice and the b lac k co[...]

  • Page 57

    SCANN ER CF5001 V er.1.0 Sep. 2003 2-4 II UNIT EXPLANA TION 1.2.3 Original reading m ode There are two original reading modes , the platen mode and the DF mode. The original reading is a com- mon operation. A. When copying with the manual density setting B. When perf orming the AE cop y [1] Home position [5] 2nd white correct ion [2] PS1 [6] Exposu[...]

  • Page 58

    CF5001 Ver.1.0 Sep. 2003 SCANN ER 2-5 II UNIT EXPLANA TION 1.2.4 Original reading contr ol The ref lection from the e xposed original reache s to the CCD sensor through the lens . The CCD sensor outputs a n electr ic signal (a nalog) propor tional to the amount of light and then the ana log signal is con- v er ted to a digital signal in the CCD boa[...]

  • Page 59

    SCANN ER CF5001 V er.1.0 Sep. 2003 2-6 II UNIT EXPLANA TION (2) When AE/A CS h as been set (the platen mode) [1] Home position [5] 2nd white correct ion [2] PS1 [6] AE/A CS scan (429 m m/s) [3] Platen APS position [7] Exposure scan (220 mm/s) [4] 1st white correction [8] Home position search 8050ma2052 [2] [1] [3] [4] [5] [6] [7] [8][...]

  • Page 60

    CF5001 Ver.1.0 Sep. 2003 SCANN ER 2-7 II UNIT EXPLANA TION (3) When AE/A CS has been set (the DF mode) [1] Home position [8] Or iginal replacing time [2] PS1 [9] AE/A CS sca n f or the 2nd pag e (429 mm /s) [3] Platen APS position [10] Expo sure scan f or the 2nd pag e (220 mm/ s) [4] 1st white correction [11] Or iginal replacing time [5] 2nd white[...]

  • Page 61

    SCANN ER CF5001 V er.1.0 Sep. 2003 2-8 II UNIT EXPLANA TION 1.2.5 APS control The APS cont rol is perf or med in the printer contr ol board (PRCB) with sign als read b y the APS sensor /S (PS3), the APS sensor /L (PS4), and the CCD sensor wh en the pl aten cov er or RADF is opened/clos ed. The signal is sent via the s canner drive bo ard (SCDB) and[...]

  • Page 62

    CF5001 Ver.1.0 Sep. 2003 SCANN ER 2-9 II UNIT EXPLANA TION 1.2.6 AE contr ol The CCD sens or installed on the A/D conv er ter board (ADB) reads the cop y density during the AE scan, it perf or ms the process responsiv e to the r ead density on the o ver all control bo ard (OA CB), and the n it sel ects the m ost f av orab le γ correc tion cur v e.[...]

  • Page 63

    SCANN ER CF5001 V er.1.0 Sep. 2003 2-10 II UNIT EXPLANA TION D . Other image processi ng (1) Brightness/density con version (2) T ext/dot pattern/photo/ map judgement (3) Fi lte rin g (4) Magnificati on change pr ocessing (5) Error di ffusion pr ocessing (6) Data compressi on/elongation processing (7) A E (8) ACS (9) Screen pr ocessing[...]

  • Page 64

    CF5001 Ver.1.0 Sep. 2003 WRITE 2-11 II UNIT EXPLANA TION 2. WRITE 2.1 Composition Symbol Name Function or method [1] Cylindrical lens 1 Corre cts th e lase r path agai nst the angle e rror in the p olygo n mir ror [2] P olygon mirror Scans the laser light He xahedron, 51, 968.51 r pm [3] P olygon motor /Y (M3) Drives the polygo n mirror (wr it e un[...]

  • Page 65

    WRITE CF5001 Ver.1.0 Sep. 2003 2-12 II UNIT EXPLANA TION *1 It is not installed on t he writ e unit /K. [13] Index sensor board /C (INDX SB C ) Controls t he laser writing posit ion in the main scan direction (write un it /C) [14] Index sensor board /K (I NDX SB K ) Controls t he laser writing posit ion in the main scan direction (write un it /K) [[...]

  • Page 66

    CF5001 Ver.1.0 Sep. 2003 WRITE 2-13 II UNIT EXPLANA TION 2.2 Operation 2.2.1 Image writing The RGB image data from the CCD sensor is con verted into digital data, individually , in the A/D con verter board (ADB) and then, it is sent to the ov erall control board (OA CB). The OA CB co nv er ts RGB signals to YMCK signals with the image processing bo[...]

  • Page 67

    WRITE CF5001 Ver.1.0 Sep. 2003 2-14 II UNIT EXPLANA TION A. T ypes of the color registration correction control There are f ollowing 5 color registr ation correction controls . The write units ar e mechanically adjusted in t he "P ar t ial h or izon tal magnification"; ho we v er , the correction is perf or med automatically in the other [...]

  • Page 68

    CF5001 Ver.1.0 Sep. 2003 WRITE 2-15 II UNIT EXPLANA TION [1] Dru m /Y [8] Writ e unit /K [2] Write unit /Y [9] T ransf er belt [3] Drum /M [10] Direction of image [4] Write unit /M [11] Color registr ation sensor /F (PS8) [5] Drum /C [12] Color registrat ion sens or /R (PS9) [6] Write unit /C [13] Data processing [7] Drum /K 8050ma2055 [9] [10] [11[...]

  • Page 69

    WRITE CF5001 Ver.1.0 Sep. 2003 2-16 II UNIT EXPLANA TION C. Procedure f or the color re gistration automatic correcti on control operation 1. T rans fer r ing the color registr ation mar k The color re gistration marks " " f or each color are t ransf erred on t he transf er belt in order of b lack (K), cya n (C), m agenta (M), an d yello [...]

  • Page 70

    CF5001 Ver.1.0 Sep. 2003 WRITE 2-17 II UNIT EXPLANA TION 2. Detecting th e color regis tration mark PS8 and PS9 det ect the edge of the color registr ation mar k " " f or each color and con vert to digital sig- nals. The edge detection for one " " is per formed at fo ur positions. 3. Calculat ing and correc ting the color drift [...]

  • Page 71

    WRITE CF5001 Ver.1.0 Sep. 2003 2-18 II UNIT EXPLANA TION The pass age time diff erences betw een bl ack (K) and each c olor are determined from t he passage tim es detected at abo v e. The t ime diff erence is called the color drift amount due to the image write timing. It also determines the diff erence betw een the edg e detecti on timing dif fer[...]

  • Page 72

    CF5001 Ver.1.0 Sep. 2003 DRUM UNI T 2-19 II UNIT EXPLANA TION 3. DRUM UN IT 3.1 Composition Symbol Name Function or meth od [1] D r um potential sensor board /Y (DRPSB Y) Controls the drum potential sensor /Y (DRP S Y) [2] Drum potential sensor board / M (DRPSB M ) Controls the drum potential sensor /M (DRPS M) [3] Drum potent ial sensor board / C [...]

  • Page 73

    DRUM UNI T CF5001 Ver. 1.0 Sep. 2003 2-20 II UNIT EXPLANA TION [10] Charging /M F or ms a charging potential on the surf ace of the dr u m / M DC corona disc harge (Scotron) Wire discharge: gold-plat ed tungsten wire ( φ 30 µ m) Constant-c urrent metho d DC output range: -450 to -1100 µ A Grid bias : changing control plate Constant v oltage meth[...]

  • Page 74

    CF5001 Ver.1.0 Sep. 2003 DRUM UNI T 2-21 II UNIT EXPLANA TION [27] Drum poten tial s ensor /K (DRP S K) Detects the surf ace potential of the drum /K [28] Drum potent i al sen sor /C (DRPS C) Detects the surf ace potential of the drum /C [29] Drum potent i al sen sor /M (DRPS M) Detects the surf ace potential of the drum /M [30] Drum poten tial s e[...]

  • Page 75

    DRUM UNI T CF5001 Ver. 1.0 Sep. 2003 2-22 II UNIT EXPLANA TION PS66 Encoder sensor /K 1 Detects the rotat ion of the encoder f or the dr um /K Manages t he drive of the drum moto r /K (M17) There are two sensor s, PS 66 and PS67, at opposite of the encoder to can cel the rotational fluctuat ions due to the eccen- tricity of the encoder PS67 Encoder[...]

  • Page 76

    CF5001 Ver.1.0 Sep. 2003 DRUM UNI T 2-23 II UNIT EXPLANA TION 3.2 Operation 3.2.1 Image fo rmation timing [1] P aper feed star t [2] 2nd tr ansf er cleaning 8050ma2012 [2] [1] P aper f eed motor ( M41) Dr um mo tor /Y (M 14) Dr um moto r /M (M15 ) Dr um mo tor /C (M1 6) Dr um mo tor /K (M 17) T rans fer belt motor (M18) 1st transfer pressure/r elea[...]

  • Page 77

    DEVELOPING UNIT CF5001 Ver. 1.0 Sep. 2003 2-24 II UNIT EXPLANA TION 4. DEVELOPI NG UNIT 4.1 Compo sition Symbol Name Funct ion or met hod [1] Conv ey ance scre w Con vey ance of de veloper f rom the agit ator scr ew t o the developi ng sl eeve Scre w method [2] Collection screw Con ve yanc e of dev eloper from the scraper magnet roller to the colle[...]

  • Page 78

    CF5001 Ver.1.0 Sep. 2003 DEVELOPING UNIT 2-25 II UNIT EXPLANA TION [9] De v eloping unit /M Adhesion of magenta toner to the image transf erred on t h e drum /M [10] De veloping u nit /C Adh esi on of cyan to ner to the i mag e tran sferre d on t he dr um /C [11] De veloping u nit /K Adhe sion of b lac k to ner to the imag e tr ansf erred o n the d[...]

  • Page 79

    DEVELOPING UNIT CF5001 Ver. 1.0 Sep. 2003 2-26 II UNIT EXPLANA TION 4.2 Operation 4.2.1 Flow of de veloper De v eloper in the de veloping unit, after b eing agitated b y the agitator scre w , is supplied to the dev eloping slee ve b y the conv eyanc e scre w . At this time, the bristles amount of the de veloper on th e de veloping slee ve is r egul[...]

  • Page 80

    CF5001 Ver.1.0 Sep. 2003 DEVELOPING UNIT 2-27 II UNIT EXPLANA TION 4.2.4 De veloping bi as contr ol A. Control path The de v eloping bias /Y , /M, /C and /K are supplied from the high v oltage unit /1 (HV1) and controlled by the printer co ntrol board (PR CB). Each de velo ping bias is su pplied with A C + DC to s ecure th e unif or mity of de velo[...]

  • Page 81

    TRANSFER BELT UNIT CF5001 V er.1.0 Sep. 2003 2-28 II UNIT EXPLANA TION 5. TRA NSFER BEL T UNIT 5.1 Compo sition Symbol Name Function or method [1] 1st transf er roller /Y T ran sf er of ima ges from the d r um /Y to the transf er belt (1st trans - fe r ) Roller tr ansf er method with const ant current DC bias applied DC output r ange by the constan[...]

  • Page 82

    CF5001 Ver.1.0 Sep. 2003 TRANSFER BELT UNI T 2-29 II UNIT EXPLANA TION [9] T oner gu ide brush Scr aping an d collection of toner on the trans fer belt [10] T oner collection scr ew Con ve y s t oner from the belt cleaning s ection to the t oner collec- tion section Screw me thod [11] I mage correction unit Detection of v ariety of inf ormation of [...]

  • Page 83

    TRANSFER BELT UNIT CF5001 V er.1.0 Sep. 2003 2-30 II UNIT EXPLANA TION 5.2 Operation 5.2.1 T ransfer belt pressure/release mechani sm The 1st tr ansf er roller that pr esses the t ransf er belt agains t the drum is made up of the 1st tr ansf er rollers / Y , /M and /C f or the drums /Y , /M and /C and the 1st transf er roller /K for t he drum /K. T[...]

  • Page 84

    CF5001 Ver.1.0 Sep. 2003 TRANSFER BELT UNI T 2-31 II UNIT EXPLANA TION 5.2.2 Image correction unit A. Composition B. Sh utt er m echan ism The image correction unit is pro vided with a shutter mec hanism that allow s the sensor to be e xposed only when neces sar y to pre vent the contamina tion of various types of sensors. The color registr ation s[...]

  • Page 85

    TRANSFER BELT UNIT CF5001 V er.1.0 Sep. 2003 2-32 II UNIT EXPLANA TION 5.2.3 1st transfe r control T oner on t he drum is transf erred onto the tr ansf er belt side b y a bias v alue applied on the 1 st transf er roller pro vided inside the t ransf er be lt. The DC bias v alue of the 1st trans fer roller changes according to the f o llo wing condit[...]

  • Page 86

    CF5001 Ver.1.0 Sep. 2003 TONER SUPPLY 2-33 II UNIT EXPLANA TION 6. T ONER SUPPL Y 6.1 Composition Symbol Name Function or meth od [1] T oner bottle clutch /C (MC16) T rans mission of dr iving f orce from the toner bot tle motor (M53) to the toner bottle c lutch /C 24 VDC drive [2] T oner bottle clutch /K (MC17) T rans mission of dr iving f orce fro[...]

  • Page 87

    TONER SUPPLY CF5001 V er.1.0 Sep. 2003 2-34 II UNIT EXPLANA TION 6.2 Operation 6.2.1 T oner supp l y control to the toner hopper section A. T oner supply operation When the t oner le v el detection sens ors /Y , /M, /C and /K (TLD /Y , /M, /C , /K) det ect the toner le vel o f about 50g in the toner hopper section, the toner bottl e mot or (M53) an[...]

  • Page 88

    CF5001 Ver.1.0 Sep. 2003 TONER SUPPLY 2-35 II UNIT EXPLANA TION 6.2.3 Copy/print operation stop contr ol due to n o toner After the no-t oner displa y is shown on the oper ation LCD , t he consu mption of about 50g of remaining toner in the toner hopper is detected b y the length of time dur ing which the toner supply motor has been driven. When it[...]

  • Page 89

    TONER COLLEC TION CF5001 Ver. 1.0 Sep. 2003 2-36 II UNIT EXPLANA TION 7. T ONE R COLLECTION 7.1 Compo sition Symbol Name Function or method [1] Wast e toner door PS (PS53) Open/clos e detection of the toner collection door , presence / absence detection of the toner collection bo x [2] Wast e toner dischar ge e xit Discharge e xit of w aste toner f[...]

  • Page 90

    CF5001 Ver.1.0 Sep. 2003 TONE R COLLECTION 2-37 II UNIT EXPLANA TION 7.2 Operation 7.2.1 T oner collection control Since the toner co llection section is dr iv en b y the tr ansf er belt mot or (M18)and the pa per f eed motor ( M41), its con trol depends on the tran sf er belt dr iv e and the paper f eed driv e. 7.2.2 W aste toner full detection co[...]

  • Page 91

    PAPER FEED TRAY /1 TO / 3 CF5001 Ver. 1.0 Sep. 2003 2-38 II UNIT EXPLANA TION 8. P APER F EED TRA Y /1 T O /3 8.1 Compo sition Symbol Name Function or met hod [1] Pre-r egistration roller / 2 Conv ey ance of the tra y /2 paper and the p aper st opper plate f or the correcti on of paper ske w [2] Pre-r egistration roller / 3 Conv ey ance of the tra [...]

  • Page 92

    CF5001 Ver.1.0 Sep. 2003 PAPER FEED TRAY /1 TO /3 2-39 II UNIT EXPLANA TION [11] Feed roller /2 F eed of th e tra y /2 paper [12] Double f eed pre v ention roller /1 Double f eed pre v ention of the tra y /1 paper [13] P aper f eed r oller /1 P aper f eed of t he tra y /1 paper [14] Feed roller /1 F eed of th e tra y /1 paper [15] Pre-registrat ion[...]

  • Page 93

    PAPER FEED TRAY /1 TO / 3 CF5001 Ver. 1.0 Sep. 2003 2-40 II UNIT EXPLANA TION 8.2 Operation Since the composition and the operat ion of the paper fee d tra ys /1 to /3 are the same, the ex planation is giv en of the paper f eed tra y /1 only . The paper f eed tra ys /2 and /3 are the sa me as the paper f eed tra y /1. The inter mediat e conv eyan c[...]

  • Page 94

    CF5001 Ver.1.0 Sep. 2003 PAPER FEED TRAY /1 TO /3 2-41 II UNIT EXPLANA TION 8.2.2 Up/down plate control The up/do wn plat e in the pa per f eed tr a y is driven b y the wire . When the paper feed tra y /1 is set to the main body , the tra y up drive motor / 1 (M40) of the main body star ts to rotate . As a result, the wire is wound around the drive[...]

  • Page 95

    PAPER FEED TRAY /1 TO / 3 CF5001 Ver. 1.0 Sep. 2003 2-42 II UNIT EXPLANA TION 8.2.4 P aper size detecti on contr o l The main scan direct ion is detected b y the resist ance value of the paper size VR/1 (VR1) of the bottom of the paper f eed t r ay . The sub-scan direc tion is detected in the combination of the on/off of the paper siz e /S1 (PS33) [...]

  • Page 96

    CF5001 Ver.1.0 Sep. 2003 BY-PASS FEED 2-43 II UNIT EXPLANA TION 9. BY-P ASS FEED 9.1 Composition Symbol Name Function or method [1] P aper siz e/LBP (PS49) Paper size detectio n along the l en gth of the by-pass tr ay [2] No paper sens or/BP ( PS47) Detection o f the pr esence o f the b y-pass f eed paper [3] P aper siz e/SBP (PS48) Assistance of p[...]

  • Page 97

    BY-PASS FEED CF5001 Ver.1.0 Sep. 2003 2-44 II UNIT EXPLANA TION 9.2 Operation 9.2.1 T ray up drive contr ol When Pic k-up solenoid/BP (SD5) turns on after the paper f eed motor (M41) turns on, t h e up/do wn plate is raised w ith paper going up . When pulling out A DU , coupling comes off th e dr iv e section and the up/down plate c omes down b y i[...]

  • Page 98

    CF5001 Ver.1.0 Sep. 2003 VERTICAL CONV EYANCE 2-45 II UNIT EXPLANA TION 10. VER TICAL CONV EY A NCE 10.1 Composition 10.2 Operation 10.2.1 V ertical con vey ance control F or operation timing of the v er tical conv ey ance control, see "8. P aper f eed tra y /1 to /3." Symbol Name Function o r method [1] V er tical con v ey ance doo r Cle[...]

  • Page 99

    REGISTRATION/ ADU/REVERSE/PAPE R EXIT CF5001 Ver. 1.0 Sep. 2003 2-46 II UNIT EXPLANA TION 11. REGISTRA TION/A DU/REVERSE/P APE R EXIT 11.1 Compo sition Symbol Name Function or method [1] ADU co nv e yance roller / 2 P aper con ve yance while in the doub le side copy mode and loop f or mation f or t he correc tion of paper ske w correc tion Mo tor d[...]

  • Page 100

    CF5001 Ver.1.0 Sep. 2003 REGISTRATION/ADU /REVERSE/PAPER EXIT 2-47 II UNIT EXPLANA TION [6] Decurler roller P aper co nv ey anc e and pape r curl co rrectio n in t he re ve rse se ction Motor drive [7] Fixing s ection Fixing of paper that ha s been tr ansfe rred See "12. Fixing Section." [8] ADU conv e yance roller /1 P aper c onv eyanc e[...]

  • Page 101

    REGISTRATION/ ADU/REVERSE/PAPE R EXIT CF5001 Ver. 1.0 Sep. 2003 2-48 II UNIT EXPLANA TION M30 Registration roller motor Registration roller driv e Stepping motor M31 Loop roller motor Loop roller dr iv e Stepping motor M32 ADU re vers e motor ADU re v erse roller driv e Stepping motor M33 Re vers e/e xit motor Dr iving of the paper e xit roller , d[...]

  • Page 102

    CF5001 Ver.1.0 Sep. 2003 REGISTRATION/ADU /REVERSE/PAPER EXIT 2-49 II UNIT EXPLANA TION 11.2 Operation 11.2.1 Switchi ng control of the paper exit/ADU con vey ance path A. St raigh t pa per exit pat h The str aight paper e xit path is applicab le to the f ace-up p aper ex it after completion of co p y in the single side cop y mode, as w ell as afte[...]

  • Page 103

    REGISTRATION/ ADU/REVERSE/PAPE R EXIT CF5001 Ver. 1.0 Sep. 2003 2-50 II UNIT EXPLANA TION B. ADU c on vey ance path The ADU c onv e yance path is applicab le to the f ac e-do wn paper exit in the single side c op y mode and the con ve yance t o the ADU af ter com pletion of the front side cop y in the doub le sided cop y mode. [1] Fixing section [4[...]

  • Page 104

    CF5001 Ver.1.0 Sep. 2003 REGISTRATION/ADU /REVERSE/PAPER EXIT 2-51 II UNIT EXPLANA TION C. Straight paper exit operation (single sided 2 copies) [1] ST AR T b utton (ON) [3] 1st paper e x it [2] Completion of the first sheet fixing [1] [2] [3] 8050ma2025 P aper f eed moto r (M41) Re gist rati on r oll er mot or (M 3 0) Fixing motor (M29) Re v ers e[...]

  • Page 105

    REGISTRATION/ ADU/REVERSE/PAPE R EXIT CF5001 Ver. 1.0 Sep. 2003 2-52 II UNIT EXPLANA TION D . ADU con v e y ance operation (double si ded 2 copies) [1] ST ART butto n (O N) [3] Com pletio n o f t he bac k side f ixing of 1st paper [2] Com pletio n of th e fron t side fixing of 1st p aper [4] 1st paper ex it [1] [3] [2] [4] 8050ma2026 P aper f eed m[...]

  • Page 106

    CF5001 Ver.1.0 Sep. 2003 REGISTRATION/ADU /REVERSE/PAPER EXIT 2-53 II UNIT EXPLANA TION 11.2.2 Re verse/e xit contr ol A. Re verse/ exit pat h The re v erse/e xit path is applicable to the f ace-do wn paper e xit after completion of cop y in the single side cop y mode, as we ll as after completion of the b ack side cop y in the double sided cop y m[...]

  • Page 107

    REGISTRATION/ ADU/REVERSE/PAPE R EXIT CF5001 Ver. 1.0 Sep. 2003 2-54 II UNIT EXPLANA TION B. Rever se/exit operat ion (single sided 2 copies) 11.2.3 ADU con vey ance contro l P aper that has been copied on the front side and conv eye d to the re verse/e xit section while in the double side c op y mode is con v ey ed to t he ADU re vers e section by[...]

  • Page 108

    CF5001 Ver.1.0 Sep. 2003 REGISTRATION/ADU /REVERSE/PAPER EXIT 2-55 II UNIT EXPLANA TION 11.2.4 P aper rever se control A. P aper rever se path (1) When con veying paper P aper con ve y ed from the r ev erse/e xit roller /2 is conv eye d to the ADU re v erse roller acc ording to the form of the con v e yance pat h. (2) When paper reverse P aper conv[...]

  • Page 109

    REGISTRATION/ ADU/REVERSE/PAPE R EXIT CF5001 Ver. 1.0 Sep. 2003 2-56 II UNIT EXPLANA TION B. P aper re verse operation [1] ST AR T b utton ( ON) [4] Star t of 2n d paper con ve yanc e [2] Star t of 1s t paper c onv e yance [ 5] Star t of re verse operation of 2nd p aper [3] Star t of re ver s e oper ation of 1st paper [1] [2] [3] [4] [5] 8050ma2031[...]

  • Page 110

    CF5001 Ver.1.0 Sep. 2003 REGISTRATION/ADU /REVERSE/PAPER EXIT 2-57 II UNIT EXPLANA TION 11.2.5 ADU pre-regist ration contr ol The paper co nv e y ed from the ADU s witchbac k section is f ormed into a loop betwe en the ADU conv ey ance roller /2 and the ADU pre-regis tration roller , and a paper ske w is corrected. A. ADU pre-registration path B. A[...]

  • Page 111

    REGISTRATION/ ADU/REVERSE/PAPE R EXIT CF5001 Ver. 1.0 Sep. 2003 2-58 II UNIT EXPLANA TION 11.2.6 Registration control P aper con ve yed to the loop r oller is f or med into a loop between the registra tion roller and the loop roller , and pap er sk ew is corrected. A. Registration path B. Registration operation [1] Intermediat e c onv e yance rolle[...]

  • Page 112

    CF5001 Ver.1.0 Sep. 2003 REGISTRATION/ADU /REVERSE/PAPER EXIT 2-59 II UNIT EXPLANA TION 11.2.7 2nd transf er control The paper that has been con ve y ed from the registration roller underg oes the 2nd transf er b y the pres sure of the 2nd tr ansf er roller /L on the transf er belt. A. 2nd transfer r oller /L pressure/release mechanism B. 2nd trans[...]

  • Page 113

    FIXING UNIT CF5001 V er.1.0 Sep. 2003 2-60 II UNIT EXPLANA TION 12. FIXING UNIT 12.1 Compo sition Symbol Na me Function or method [1] Fixing roller /U T oner fixing by means of pressure and heating Heating roller method Silicon rubber + PF A resin la y ers T emper ature: 210 °C [2] Fixing roller /L T oner fixing by means of pressur e a nd he ating[...]

  • Page 114

    CF5001 Ver.1.0 Sep. 2003 FIXING UNIT 2-61 II UNIT EXPLANA TION L2 Fixing upper lamp /1 Heating of the fix ing roller /U (main) Halogen heater 750 W L3 Fixing upper lamp /2 Heating of the fix ing roller /U (sub) Halogen heater 750 W L4 Fixing lo wer lamp Heating of the fix ing roller /L Halogen heater 550 W TH1 Fixing temper ature sensor /1 T empe r[...]

  • Page 115

    FIXING UNIT CF5001 V er.1.0 Sep. 2003 2-62 II UNIT EXPLANA TION 12.2 Operation 12.2.1 Fixing drive contr ol P aper is con ve yed w ith the heated f ixing roller /U and the he ated fixing roller / L pressed toge ther , and is fix ed with toner . The pressure of the fixing roller is released at idling. A. Fixing drive operation The driving f orc e of[...]

  • Page 116

    CF5001 Ver.1.0 Sep. 2003 FIXING UNIT 2-63 II UNIT EXPLANA TION 12.2.2 Pressure/releas e contr ol The pressure o f the fixing roller / L onto the fixing roller /U is made b y the re v erse rota tion of the fixing motor (M 29) and the cam mechanism. A. Pressure/relea se operation When the fixing m otor (M29) [1] rotates in the re v erse direction, th[...]

  • Page 117

    FIXING UNIT CF5001 V er.1.0 Sep. 2003 2-64 II UNIT EXPLANA TION 12.2.3 W eb control The w eb motor (M 54) is driv en f or a s pecified period of ti me f or each pr int t o clean the f ixing roller /U through the cleaning roller . The oper ation of M54 st ar ts at the sam e time as the registrat ion roller motor (M 30). In order t o mak e web tra v [...]

  • Page 118

    CF5001 Ver.1.0 Sep. 2003 INTERFACE 2-65 II UNIT EXPLANA TION 13. IN TERF A CE 13.1 Composition Symbol Name Function or method [1] Video interf ace f or controller For controller [2] Serial por t (RS-232C) F or RD-mode communications D-SUB 9- pin connector [3] P aralle l port (based on IE EE 1 284) F or ISW of copier 36-pin centro nics connector [4][...]

  • Page 119

    IMAGE STA BILIZATION CON TROL CF5001 V er.1.0 Sep. 2003 2-66 II UNIT EXPLANA TION 14. IMA G E ST AB ILIZA TION C ONTROL 14.1 T oner den sity contr ol The purpos e of this control is to correct the ref erence value of toner density f or each color against v ariable f actors of the image density such as environment al factors . A. Explanation of the [...]

  • Page 120

    CF5001 Ver.1.0 Sep. 2003 IM AGE STABILIZATION CONTR OL 2-67 II UNIT EXPLANA TION 14.3 Charging p otential cont r ol 14.3.1 Correction of t he refere nce value The purpos e of this control is to set the charging potential for each color to the ref erence le vel. The charging pot ential control is carried out by t he dr um po tential sensors /Y , /M,[...]

  • Page 121

    IMAGE STA BILIZATION CON TROL CF5001 V er.1.0 Sep. 2003 2-68 II UNIT EXPLANA TION 14.4 Dot diameter adjus tment contro l The dot diameter adjustment control is a method b y which interm e diate e xposure potential is out put stab ly , regardless of the changes in the sensitivity of photosensitiv e materials or the stain of the writing system. The l[...]

  • Page 122

    CF5001 Ver.1.0 Sep. 2003 OTHER CONTROLS 2-69 II UNIT EXPLANA TION 15. O T HER CONTR OLS 15.1 P ar ts to wh ich po wer is su pplied e ven when the reset s witch is turned o ff Regard less of the on/off position of the reset s witch (SW1 ), the f ollowing component s are supplied with po wer so long as the power cord is plugged into the po wer outlet[...]

  • Page 123

    OTHER CONTROLS CF5001 V er.1.0 Sep. 2003 2-70 II UNIT EXPLANA TION 15.2 P ar ts that operate onl y when the po wer switch is turned on 15.2.1 P ar ts t hat operate when the reset s witch i s turned on When the reset swit ch (SW1) tur ns on, A C power is supplied to the DC po we r unit /1 (DCPS1), A C drive board (A CDB) and the DC power unit /4: op[...]

  • Page 124

    CF5001 Ver.1.0 Sep. 2003 OTHER CONTROLS 2-71 II UNIT EXPLANA TION 15.3 Fan contr ol 15.3.1 F an composition Symbol Name Function or method [1] Write e xhaust f an /1 (M45) Writing section cooling [2] Write intake f an /1 (M43) Writing section cooling [3] Write e xhaust f an /2 (M46) Writing section cooling [4] IP coo ling fan (M25) Cooling of the o[...]

  • Page 125

    OTHER CONTROLS CF5001 V er.1.0 Sep. 2003 2-72 II UNIT EXPLANA TION 15.4 Operation board contr o l 15.4.1 Operation boar d composition Symbol Name Function or method [1] T ouch panel board T ouch s witch board use d to directly select items show n on the LCD board (LCDB ) LCDB LCD board Information of all sor ts is displa yed on this OB INVB OB in v[...]

  • Page 126

    CF5001 Ver.1.0 Sep. 2003 OTHER CONTROLS 2-73 II UNIT EXPLANA TION 15.5 Counter con tr ol 15.5.1 Counter composition 15.5.2 Counter operation This machine us es a counter on th e softwar e to count a number of copies. A. P aper exit counter The c ounter tak es the count of 1 e v er y time the paper exit sensor (PS13) turns off f rom on. I n the doub[...]

  • Page 127

    OTHER CONTROLS CF5001 V er.1.0 Sep. 2003 2-74 II UNIT EXPLANA TION D. C ( B K ) This counts u p in conjun ction with the paper e x it co unter . E. C (K) This counts u p in conjun ction with the paper e x it co unter . F . Si gnals in seria l conne ction G. Signals f or status indi cator lights Connector Pin No . Signal name In/Out Description 37 1[...]

  • Page 128

    CF5001 Ver.1.0 Sep. 2003 OTHER CONTROLS 2-75 II UNIT EXPLANA TION 15.6 A CS contro l 15.6.1 Switchi ng between the col or mode and the blac k and white mode If mor e than 5 b l a ck and whit e sheets are f ed consec utiv ely from RADF in which both the co lor sheets an d the b lack and white sheets are stored, t he pressure on the 1st tra nsf er ro[...]

  • Page 129

    OTHER CONTROLS CF5001 V er.1.0 Sep. 2003 2-76 II UNIT EXPLANA TION Blank Page[...]

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    7661-4969-11 0309xxxx Copyright 2003 KONICA MINOLTA BUSINESS TECHNOLOGIES, INC. Printed in Japan Use of this manual should be strictly supervised to avoid disclosure of confidential information.[...]