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DC-1560/2050

Contents

1. General wiring diagram 8 u 8 lou m Ist Ave fo AS B m g t a fol Taso sE MERAMA rs 35 ij 5 zi uu fe E E L E i sus ele SEIS
2. 1AF Main PCB H B D E 8 z P 8 8 9 o 2 i Y T 2000H FFFFH RAL 1 15 z E nao 6 14 4 6 TNS CNTT 3 Cen D3 4 540 D E NA 2 RESET INH MONI 2 6 INI OUT S N2 CNTI 6 g 8 GND g 8 2 6 1014 3 PIG 5 4 ANN 18 107 n GRID CONT 17 2 T4 GNE SEG g 9 36 107 259 SEG E Ie7 4 18 ur CN1 5 SEG e N14 9 SEG d sla 1 39 SEG c TNS CONT CCNTI T abe 39 s 711 12 107 SEGD i 17 8111 NT 1 9 SEG a n cha 113 BL Clos DIG7 ADF TXD 5 weet 10 VO7 A10 BR 7 12 1013 006 3 vos aga BL DIGG 25 DIG 6 VOS 2 Dias ADF c18 vos A6 1618 DIGS 5 A5 2 Ta VO2 A C HALF IG 4 G FAN 5 14 1013 WI voo 23 Bt Dl Alis A5 1000H 1006H ONE DIGS 2 26 vE WR DIG 2 HLCONT T 8 3 16 ian gt CCNS 6 BL DIG2 103 CONTA DIG 1 24 ies BL DIG1 4 Dive CONES DIG o Kc emm
3. 1AF Timing chart No 3 Copying an A3 11 x 17 original onto an A4R 81 2 x 11 copy paper from the bypass table at magnification ratio 64 by manual exposure 5 5 5 A 5 5 5 E z 66 500 P a I Print key HPSW 7 2 5 amp RSW CN17 2 ESW CN28 DM CN153 1800108 Forward 147P 3080P Reverse 108 SM CN amp 1 6 480 ms Move to 64 LM CN59 12 DB 1 20 200 ms MC CN1 21 50 ms TC CNI 22 220 ms 200 ms Z sc 5 o HL CN4 5 1000 ms eni Allon x Side erasure All on BL CN9 1 11 PFSOL CN2 4 250 ms RSOL CN14 2 100 ms OPFM 16 2 11 15 Half speed Full speed Half speed OEFM CN11 13 Full speed gos Palf speed 1 Time set in simulation 54 2 1592 ms time set in simulation 59 3 147 pulses time set in simulation 27 x 2 3 7 3 E E E n le DC 1560 2050 KME S M Composite PCB 1 3 A B D E F G H 1 J 1 1 INE Fi R1 R2 C1 1A 1B Come oe t
4. e Composite PCB 3 3 A B c D E F H J 1 2 R616 PC 3 617 14 2 5 9 R618 X R501 R619 HL CONT CCN2 7 T m 3T 58604 G Poa VR603 L 2 Paias C606 2 3 R502 R621 8 REM 1 1 R614 5 4 R610 VR602 R609 D603 2 gt CR601 C609 C605 1 601 0608 4 0601 6n 1 601 Pelr Ren 0602 1 L601 5 1601 i 0602 9612 2 7 CNIS PTI 2 4 7 1 C608 Y 3 C603 Si 3 2 7 Y TH602 2 d R613 2 11 6 4 4 E a R624 gp C504 id 3 7 PT2 4 8 D E F G H J 3 7 6 DC 1560 2050 KME S M Operation unit PCB 1AF A B D E G J 129 ou O L10 118 1 Lt o 125 lis Co 913 gente 20 3 _ Sis Kn 2 K23 L13 lt gt f b QE L21 122 123 L L15 K14 K15 K21
5. TH2 TH1 CPCB SSR Heat roller CN4 1 FTH 4 3 bid e z o Q e tr gt m d 10 o 209 i da 22 5 gt gt 66 For 230 V specifications only 1 3 38 Figure 1 3 36 Fixing section block diagram 1AF Heating the heat roller and detecting temperature Figure 1 3 37 Heating the heat roller and detecting temperature Heat roller Fixing unit thermostat 2 TH2 2 Fixing heater 5 Fixing unit thermistor FTH 3 Fixing unit thermostat 1 TH1 6 Fixing unit blade The heat roller is heated by the fixing heater H inside it its surface temperature is detected by the fixing unit thermistor FTH and is regulated by the fixing heater turning on and off If the fixing section becomes abnormally hot either the fixing unit thermistor detects it or fixing unit thermostat 1 or 2 TH1 or TH2 operates in each case shutting the power to the fixing heater off 1 3 39 1AF Fixing temperature control temperature 167 C 332 6 F temperature 170 C 338 F Copying enabled Secondary stabilization fixing Stabilization drive start Primary stabilization fixing temperature 175 C 347 F MSW gt 210 ms m Ec sl nt NM 300 ms 1000 ms ICFM Full speed DM Dev bias Timing
6. lt E 9 gt lt 4 9 gc o NR CP m Y 1130 mm 441 8 e 980 mm 389 1e b 595 mm 237 16 f 590 mm 23 4 c 485 191 8 9 894 mm 353 1e d 338 mm 135 1e Figure 3 1 1 Installation dimensions 3 1 1 1AF 2 Installation procedure 3 1 2 Start Unpack Y Remove the pins Y Remove the fixing unit spacers Y Remove the tapes and spacers Y Load developer Y Unlock the cleaning blade Y Connect the power plug Carry out initial developer setting simulation 60 Y Exit simulation mode Y Install a toner cartridge Adjust the levelling bolts Install the table stopper Y Install the bypass cover Y Make test copies Completion of machine installation 1AF Lens unit pins Light source unit 2 pin Light source unit 1 pins Fixing unit spacers Bypass cover Table stopper Figure 3 1 2 1AF Unpack D Copier 2 Bottom pads 3 Hinge joints Skid 5 Machine bottom cover 6 Machine cover 5 Slings Outer case 9 Bar code labels Inner frame y Top pads 3 1 4 Figure 3 1 3 Unpacking
7. 3 6 26 1AF Check for continuity across the terminals to inspect each component of the operation unit PCB keyboards Precautions Before starting a continuity check always turn the copier main switch off disconnect the power plug from the wall outlet and detach the operation unit PCB from the copier The positive probe should be connected to the terminals in the first column and the negative probe to the terminals in the second column There should be no reverse continuity Terminals CN Remarks 1 1 2 4 Continuity with L28 lit 1 2 Continuity with segment g of the 100s digit 7 seg LED lit 1 3 Continuity with segment f of the 100s digit 7 seg LED lit 1 4 Continuity with segment e of the 100s digit 7 seg LED lit 1 5 Continuity with segment d of the 100s digit 7 seg LED lit 1 6 Continuity with segment c of the 100s digit 7 seg LED lit 1 7 Continuity with segment b of the 100s digit 7 seg LED lit 1 8 Continuity with segment a of the 100s digit 7 seg LED lit 1 2 Continuity with segment g of the 10s digit 7 seg LED lit 1 3 Continuity with segment f of the 10s digit 7 seg LED lit 1 4 Continuity with segment e of the 10s digit 7 seg LED li 1 5 Continuity with segment d of the 10s digit 7 seg LED li 1 7 Continuity with segment b of the 10s digit 7 seg LED li t t 1 6 Continuity with segment c of the 10s digit 7 seg LED lit t t 1 8 Co
8. 2 HO E 2 C 3 SSS j 68 Figure 1 3 1 1 Operation panel 8 Paper drawer 15 Key counter option 2 Original size indicator 9 Toner cartridge 16 Copy tray 3 Original holder 10 Paper conveying section lever 17 Eject cover 4 Main switch 11 Image formation unit 18 Drawer bottom plate 5 Bypass table 12 Front cover 19 Width guide tab 6 Auxiliary table 13 Bypass cover 20 Width guide 7 Insertion guides 14 Total counter 21 Length guide 1AF 1 3 1 DC 1560 2050 KME S M 1AF Metric o A3 ASB 4 B4 o B5B BS Folio 11x15 64 gt 141 Inch 50 84x14 84x110 5 8 11x85 11x15 Original Zoom Check Add Toner Maintenance Paper 5 irection Zoom hood gt Light M labs Figure 1 3 2 Operation panel 1 3 2 Auto selectionkey Auto selection indicator All clear reset key Print key Copy start indicator Stop clear key Numeric keys Exposure adjustment keys Exposure indicators Auto manual exposure key Auto exposure indicator Photooriginal
9. 3 6 33 14 The cleaning lamp does not light 3 6 33 15 The fixing heater does not turn on C61 C63 3 6 33 16 The fixing heater does not turn off fixing unit thermostat 1 or 2 triggered COA eoi euenire 3 6 34 17 Main charging does not take 3 6 34 18 Transfer charging does not take place 3 6 34 19 Separation charging does not take place 3 6 35 20 No developing bias is output 3 6 35 21 PF is displayed while paper is present in the paper drawer 3 6 35 22 The size of paper placed on the bypass table is not displayed correctly titre eterne 3 6 36 23 A paper jam is indicated as soon as the main switch is t rmed on Hasse egeo e E 3 6 36 24 OP is displayed when the eject cover is completely closed 3 6 37 25 Others eek tee leiten se et aan re edad 3 6 37 3 6 5 Mechanical problems 3 6 38 1 No primary paper 3 6 38 2 No secondary paper feed 3 6 38 3 Skewed paper feed 3 6 38 4 The scanner does not travel 3 6 38 5 Multiple sheets of paper are fed at one time
10. A9 252 5 ee DES 9 Oo 7 Sj SRAN om Br 84 8 8 P 5104 SES 58 mae x Ee T S is ge pz 8 EE EST Tn 258 8 NO 90 E EE 888 232 8 M l is 3 2212 d w 8 lll Ble EE Ba ass als Sid 2 35591 ge gee phos SES 2185 821 58 TIO HO ge 28 E 904 zioa BI 55 555 55 EIE 3RE 3 70 10 5565 55 5665 23 ELT ISON ul 855 885 seas SIONSSTETE DH d RM slo 39 H d 885 49 8 L NE 39999 Eeee alo sols 990 Bee enti Od reo Sag E 828 2 12 No 660 884 52 amp MA 289 sg vst a SISSIES Jo ele Se gt 25 5 5 Ns 10 5 815155551565 818151219 E Taree a 98 T 5 KO ZO g 3 07 537 8 A A9 oh am 55012 537 Qu erto LE Ae SM 250 5 ASIE A988 gt 30 6 amp 5 EINU san 3M 2152 Ha 1155 TO002 AS ikso 8 De r 30 725 ors 5 SEL 5 5 21 20 429 3 orme m 0 52 T Aj2 2 AO 25 256 a COD 79212 3 952 8 5 825 38 625 3M 850 o tH 660 10 ee 56 250 E 88 9 25 150 9g 30881 xa uer 3av Avel 29 260 NS PRESS TAS z AO 660 2 5
11. 3 3 1 1 Precautions 4 ciini e e d n dag 3 3 1 2 Running a simulation 3 3 2 3 3 2 Paper feed section 004420 0 3 3 3 1 Detaching and refitting paper feed pulleys A and B 2 3 Detaching and refitting the bypass upper pulley 3 3 6 4 Replacing the bypass paper width switch 5 Adjusting the position of the original size indicator 6 7 8 Adjusting the position of the drawer cover Adjusting the position of the bypass table adjuster 8 1 Adjusting leading edge registration timing ui 8 2 Adjusting the leading edge margin 8 3 Adjusting the trailing edge blank cut for 100 copy 3 3 15 8 4 Adjusting the trailing edge blank cut for reduction COD orones 3 3 3 Main charging 1 Replacing the charger wire 3 3 4 Exposure 1 Detaching and refitting the halogen 3 3 20 2 Detaching and refitting the optical section thermostat 3 3 21 8 Adjusting the positions of the light adjusters 3 3 22 4 Detaching and refitting the scanner wire 3 3 23 4 1 Detaching the scanner wires 3 3 23 4 2 Installing the scanner wires
12. Performs primary paper feed from the bypass table and operates the bypass lift 10 Registration solenoid RSOL Operates the registration stopper 2 1 4 1AF Machine front ZA Machine inside Machine rear Figure 2 1 4 Layout of electrical parts other electrical parts Halogen lamp HL eee 2 Cleaning lamp CL esses 3 Blank lamps BL esee 4 Fixing heater H Fixing unit thermostat 1 TH1 6 Fixing unit thermostat 2 TH2 7 Optical section thermostat TH3 8 Total counter TC 9 Solid state relay SSR For 230 V specifications only Performs exposure Removes residual charge from the drum surface Remove charge from non image forming areas of the drum surface Heats the heat roller Prevents overheating in the fixing section Prevents overheating in the fixing section Prevents overheating in the optical system Displays the total number of copies produced Controls the fixing heater 2 1 5 1AF CONTENTS 2 2 Detection of Paper Misfeed 2 2 1 Paper misfeed detection esses 2 2 1 2 2 2 Paper misfeed detection conditions sess 2 2 2 1AF 2 2 1 Paper misfee
13. Copying is possible 69 s or more after the main switch has been turned on e 3 7 1 DC 1560 2050 KME S M e Timing chart 2 Copying A4 11 x 81 2 original onto an A4 11 x 81 2 copy paper from the paper drawer at magnification ratio 100 by auto exposure 5 5 Ss 2 5 55 2 2 2 5 5 5 5 E an 0 a o o 0 N T x ul Print key HPSW CN7 2 5 RSW CN17 2 ESW CN2 8 DM 53 180018 Forward R 108 Fe d 147P 1540P R 102 SM CN8 1 6 1232P Reverse 2 orwar leverse 480 ms 480 ms DB CN1 20 200 ms MC CN1 21 50 ms TC 1 22 220 ms 200 ms 5 CN1 23 5 8 5 HL CN4 5 o E 1000 ms E BL CN9 1 11 Allon Side erasure Allon 300 ms PFSOL CN2 4 250 ms RSOL CN14 2 100 ms CN16 2 ICFM 11 15 Half speed Full speed Half speed OEFM CN11 13 Full speed 60 _ Half speed 1 Time set in simulation 54 2 1038 ms time set in simulation 59 8 147 pulses time set in simulation 27 x 2 3 7 2 DC 1560 2050 KME S M e
14. 2 3 6 4 BesetcircUit evene 2 3 7 2 3 3 Operation unit Eie dte net n dre ts 2 3 8 1AF 2 3 1 Composite PCB filter icircuit isection Lt o Pieters Power source circuit section Figure 2 3 1 Composite PCB block diagram The composite PCB CPCB consists of three circuit sections noise filter power source and AVR Noise filter circuit section The noise filter circuit consists of choke coil L1 a resistor and capacitor These attenuate external noise and prevent noise generated by the composite PCB CPCB and other electrical components from escaping out of the copier via the AC line Power source circuit section The power source circuit section is a switching regulator which converts the AC input into 5 V and 24 V DC outputs This section consists of the noise filter circuit rectifying circuit switching circuit 24 V DC smoothing output circuit 5 V DC smoothing output circuit and output feedback circuit The noise filter circuit consists of choke coil 001 and a capacitor Any external noise that has passed through the preceding noise filter circuit section is attenuated here while the switching noise generated in this section is prevented from escaping out via the AC line The AC input is full wave rectified by diode bridge 0001 and then smoothed by smoothing 2 3 1 1AF capacitor C101 in the rectifying circuit The switch
15. 3 3 24 5 Adjusting focus lens 4 3 3 26 6 Adjusting lateral image squareness height of the mirrors AGS frame AND Aue eim 3 3 27 7 Adjusting longitudinal image squareness height of mirror 2 3 3 28 8 Setting the exposure amount 3 3 30 8 1 Setting the manual mode exposure amount 3 3 30 8 2 Setting the photo mode exposure amount 3 3 33 9 Adjusting the auto exposure AE sensor reference value 3 3 34 10 Adjusting lateral magnification correcting the lens position 3 3 35 11 Adjusting longitudinal magnification scanning speed 3 3 36 12 Adjusting exposure amount for enlargement reduction mode 3 3 37 13 Setting the lens unit 3 3 38 14 Setting the optical section fan motor control 3 3 39 3 3 5 DUM SOCION A HARTE 1 Replacing the drum 2 Cleaning the drum Adjusting the copy image after drum replacement reference 242 cea teens 3 3 44 1AF 3 3 6 Developing 3 3 46 1 Adjusting the position of the magnetic brush developing roller reference e dde dete SO en e dents 3 3 46 2 Adjusting the position of the doctor blade reference 3 3 47 3
16. 1 Detaching and refitting the halogen 3 3 20 2 Detaching and refitting the optical section thermostat 3 3 21 8 Adjusting the positions of the light adjusters 3 3 22 4 Detaching and refitting the scanner wire 3 3 23 4 1 Detaching the scanner wires 3 3 23 4 2 Installing the scanner wires 3 3 24 5 Adjusting focus lens 4 3 3 26 6 Adjusting lateral image squareness height of the mirrors AGS frame AND Aue eim 3 3 27 7 Adjusting longitudinal image squareness height of mirror 2 3 3 28 8 Setting the exposure amount 3 3 30 8 1 Setting the manual mode exposure amount 3 3 30 8 2 Setting the photo mode exposure amount 3 3 33 9 Adjusting the auto exposure AE sensor reference value 3 3 34 10 Adjusting lateral magnification correcting the lens position 3 3 35 11 Adjusting longitudinal magnification scanning speed 3 3 36 12 Adjusting exposure amount for enlargement reduction mode 3 3 37 13 Setting the lens unit 3 3 38 14 Setting the optical section fan motor control 3 3 39 3 3 5 DUM SOCION A
17. 8 3 1 1 2 Installation procedure 3 1 2 3 1 2 Setting initial copy modes 3 1 16 3 1 3 Installing the key counter option 3 1 17 3 1 4 Installing the dehumidifier service part 3 1 19 1AF 3 1 1 Unpacking and installation 1 Installation environment gud ow Temperature 10 35 50 95 F Humidity 15 85 Power supply 220 240 V AC 6 3 A Power source frequency 50 60 Hz 0 3 Installation location Avoid direct sunlight or bright lighting Make sure that the photoconductor will not be exposed to direct sunlight or other strong light when removing paper jams Avoid extremes of temperature and humidity abrupt ambient temperature changes and hot or cold air directly hitting the machine Avoid dust and vibration Choose a surface capable of supporting the weight of the machine Place the machine on a level surface maximum allowable inclination 1 Avoid air borne substances that may adversely affect the machine or degrade the photoconductor such as mercury acidic and alkaline vapors inorganic gases NOx SOx gases and chlorine based organic solvents Select a room with good ventilation Allow sufficient access for proper operation and maintenance of the machine Machine front 1000 mm 393 s Machine rear 100 mm 4 Machine right 700 mm 275 e Machine left 600 mm 235 e
18. Sheets and books Maximum size A3 11 x 17 Original feed system Fixed Copy paper Plain paper 60 80 g m for drawer feed 60 200 g m for bypass feed Special paper OHP film transparencies and colored paper Note Use the bypass for special paper Copying sizes Maximum A3 11 x 17 Minimum A6R 51 2 x 81 2 Magnification ratios 64 141 1 increments Fixed ratios Metric 1 1 0 8 1 1 410 1 1 270 1 1 220 1 1 150 1 1 100 1 1 060 1 0 910 1 0 900 1 0 860 1 0 810 1 0 770 1 0 750 1 0 700 1 0 650 1 0 640 Inch 1 1 0 8 1 1 290 1 1 210 1 0 780 1 0 770 1 0 730 1 0 640 Copy 5 At 100 magnification A4 11 x 81 2 15 copies min ASA 1 x 17 10 copies min B4 257 x 364 81 2 x 14 11 copies min First copy time 4 9 s or less A4 11 x 81 2 100 magnification manual exposure Warm up time 45 s or less room temperature 20 C 68 F 65 RH Paper feed system Automatic feed from the paper drawer Capacity 250 sheets of 80 g m2 Manual feed from the bypass table Capacity 50 sheets of 80 g m Multiple copying 1 100 copies Photoconductor OPC drum diameter 60 mm Charging system Exposure system Single positive corona charging drum potential 850 V DC exposure Fixed focal lens f 215 mm F8 0
19. 124 ax c O L8 O L17 lt gt d p 2 K5 7SEGMENT LED 019 126 0 L30 132 134 136 0000000 K16 K17 K18 127 L31 L33 L35 Ka K2 T ido pum 3 7509 7509 7500 E 0 19 126 130 1 2 SeGb 7seg 7seg 7seg 12 Li L20 127 L31 1b 2b 3b SEGc _ CNt 6 7555 7599 7569 is 112 121 129 132 4 1c 2c 3c SEGd 5 Teig TES as 155 Tas LED 1d 2d 7SEGMENT LED TER SEGe 7seg 756g 7 9 15 114 123 134 4 1e 2e 3e seat 7seg 7seg 7500 16 Lis 124 135 x 1f 21 3f Steg 2 769 7 9 7509 17 116 125 136 5 19 29 39 sah on 128 19 18 017 L18 137 DEG DEG 1 DEG 2 4 6 DEG 3 4 DEG 4 DEG 5 DEG 6 DEG 7 ZA 7 K7 K22 K18 K15 K12 K19 KEYO K23 4 K8 K1 K20 K16 K13 K10 KEY1 cN22 8 K5 K9 2 21 K17 K14 K11 Cenar KEY SWITCH A B D E G J 3 7 7
20. 1 1 3 1AF CONTENTS 1 2 Handling Precautions DI AUT Aa 1 2 1 1 2 2 Developer and toner sese 1 2 1 1AF CONTENTS 1 3 Mechanical Construction 1 3 1 Part names and their functions 2 1 3 1 1 3 2 Machine cross section 4 4 1 3 3 Drive system 1 3 4 Mechanical construction 1 Paper feed section 25 1 1 Paper feed from the paper 1 3 8 1 2 Paper feed from the bypass 1 3 9 2 Main charging section E Surface potential correction 3 Exposure section teen ene Exposure control for manual exposure and photo modes Exposure control for auto exposure mode Light intensity correction for enlargement and reduction uoo M 1 3 20 Light intensity correction by the user setting 1 3 20 4 Developing section 2 Formation of the magnetic brush sese Toner density Correcting toner sensor output voltage S Toner level detection 2 2 5 Transfer and separation 6 Cleaning se
21. Original Copy Copy example 1 example 2 Figure 3 3 35 Mirror 2 Adjustment screw Figure 3 3 36 Adjusting the height of mirror 2 3 3 29 1AF 8 Setting the exposure amount Perform the following adjustment when the drum is replaced Reference This procedure adjusts the exposure gradient for both normal and photo modes Precautions Check that the developer density is correct Check that the halogen lamp has not deteriorated Clean the optical system Never touch controls VR601 VR602 and VR603 on the composite PCB 8 1 Setting the manual mode exposure amount Procedure Start Y Enter simulation mode Y Enter 24 with the numeric keys Press the print key Y Place the NTC on the contact glass and select mode 2 with the paper select key Y Exp 4 is selected Press the all clear reset key Press the print key Y Press the print key to make a test copy Is the image abnormally light Is the image abnormally dark 3 3 30 The new setting is stored Yes Decrease the setting with the zoom down key Yes Increase the setting with the zoom up key Setting range 102 to 243 Reference 175 Increasing the value makes the image lighter and decreasing it makes the image darker 1AF Select mode 1 with the paper select key Exp 1 is selected
22. Change the value to the mode 2 setting minus 15 with the zoom up down keys Setting range 102 to 243 Press the print key The new setting is stored Place the NPTC on the contact glass and select mode 4 with Exp 7 1 is selected the paper select key Press the all clear reset key Press the print key The new setting is stored Press the print key to make a test copy Is the image abnormally light Decrease the setting with the zoom down key Increase the setting with the zoom up key Is the image abnormally dark Setting range 102 to 243 Reference 185 Increasing the value makes the image lighter and decreasing it makes the image darker 3 3 31 1AF 3 3 32 Select mode 3 with the paper select key E Change the value to the mode 4 setting plus 10 with the zoom up down keys Press the print key Y Press the stop clear key Exit simulation mode End Exp 7 is selected Setting range 102 to 243 The new setting is stored 1AF 8 2 Setting the photo mode exposure amount Procedure Enter simulation mode Enter 24 with the numeric keys Press the print key Place the NTC on the contact glass and select mode 5 with the paper select key Photo mode Exp 4 is selected Press the all clear res
23. 1 Metric models only 3 6 28 1AF Terminals CN Remarks 2 3 2 5 Continuity with zoom down key K3 pressed no continuity with the key released Continuity with exposure adjustment right key K9 pressed no continuity with the key released Continuity with auto manual exposure key K8 pressed no continuity with the key released Continuity with exposure adjustment left key K7 pressed no continuity with the key released Continuity with paper select key K2 pressed no continuity with the key released Continuity with original select key 1 pressed no continuity with the key released Continuity with print key K22 pressed no continuity with the key released Continuity with all clear reset key K21 pressed no continuity with the key released Continuity with stop clear key K20 pressed no continuity with the key released Continuity with numeric key 9 K18 pressed no continuity with the key released Continuity with numeric key 8 K17 pressed no continuity with the key released Continuity with numeric key 7 K16 pressed no continuity with the key released Continuity with numeric key 6 K15 pressed no continuity with the key released Continuity with numeric key 5 K14 pressed no continuity with the key released Continuity with numeric key 4 K13 pressed no continuity with the key released Continuity with numeric key 3 K12 pressed no continuity with the key released Co
24. Ai LC Base center reinforcement Figure 3 1 24 3 1 19 1AF 8 Fitthe dehumidifier to the base center reinforcement with the two bronze binding screws M3 x 5 M3x5 Dehumidifier Base center reinforcement Figure 3 1 25 9 Insert the 2 pin connector of the dehumidifier into the opening at the rear of the copier and refit the base center reinforcement a LIO Inm Li 0 W Dehumidifier o 2 pin connector Base center reinforcement Figure 3 1 26 3 1 20 10 11 12 13 14 1AF Place the copier on its base Pull the dehumidifier 2 pin connector out of the rear of the copier and connect it to the 2 pin plug of the dehumidifier junction wire Run the dehumidifier junction wire through the six wire retainers Press the white 1 pin connector of the dehumidifier junction wire onto terminal T5 on the composite PCB Press the blue 1 pin connector of the dehumidifier junction wire onto the open terminal below the main switch Blue 1 pin connector Main switch V Wire retainers Wire retainers 2 pin connector Composite PCB of the dehumidifier White 1 pin connector 2 pin plug Figure 3 1 27 3 1 21 1AF 15 Refit the bypass rear right upper and right front covers 16 Attach the ON and OFF labels above the main switch
25. sse 5 Hold the scanner wire in place with the scanner wire drum clip 9 Ball x Ti Scanner wire drum 83 5 turns 23 turns Scanner wire drum clip Figure 3 3 28 Winding a scanner wire 3 3 24 10 11 Repeat steps 2 to 11 on the machine front 13 14 15 16 1AF Run the end with the spring through the scanner wire holder on light source unit 1 Loop that end of the wire around the inner groove in the scanner wire pulley on light source unit 2 from bottom to topissa atina isau diladeni keedeti s 6 Hook the wire spring to its holder on the left side of the machine 7 Loop the end with the round terminal around the scanner wire pulley on the right side of the machine from bottom to top Loop that end of the wire around the outer groove in the scanner wire pulley on light source unit 2 from bottom to top 9 Hook the round terminal to its holder on the right side of the machine Outside ca c9 Inside n EN Ore Scanner wire drum clip Wire holder Figure 3 3 29 Installing a scanner wire Remove the scanner wire drum clips Move light source unit 2 all the way toward the right 0 Move light sou
26. Copy operation D Figure 1 3 24 After the toner cartridge is replaced the forced feed operation 6 minutes max is started by turning safety switch 1 off on During the forced feed operation time the toner is fed and when the toner sensor output voltage reaches the toner empty end level the AP goes out and the copier goes into the ready state Further intermittent feed operations 3 minutes max are carried out until the toner sensor output voltage reaches the toner feed motor off level If the toner sensor output voltage does not reach the toner empty end level within the forced feed operation time the add toner indicator stays lit even after the end of the forced feed operation time 1 3 26 1AF Correcting toner sensor output voltage The toner density is subject to humidity changes and the developing unit drive time To maintain the toner density constant the toner sensor output voltage TNS SIG is corrected by the toner sensor control voltage TNS CONT TNS TNS CONT toner sensor control voltage V A setting by simulation 60 B absolute humidity correction value C drive time correction value Correction based on the absolute humidity When high absolute humidity is detected the toner sensor control voltage TNS CONT is decreased The external temperature and relative humidity are read from the external temperature thermistor ETTH and humidity sensor HU
27. End 3 3 37 1AF 13 Setting the lens unit rank Make the following adjustment after replacing the main PCB or the lens unit The lens unit is classified into seven ranks according to the focal distance of the lens unit The adjustment is necessary to obtain correct enlargement and reduction ratios Procedure Enter simulation mode Y Enter 28 with the numeric keys Press the print key Y Change the setting as specified in the lens unit with the zoom up down keys 1 to 7 Press the print key The new setting is stored Press the stop clear key Exit simulation mode End Figure 3 3 37 3 3 38 1AF 14 Setting the optical section fan motor control Make the following adjustment when the mirrors and other optical components are unusually prone to dust due to environmental reasons causing a background to appear on the copy image Procedure Y Enter simulation mode Enter 98 with the numeric keys Y Press the print key Y Change the setting with the zoom up down keys Setting range 0 or 1 Y Press the print key The new setting is stored Press the stop clear key Exit simulation mode End e If O is selected the optical section fan motor is under normal control If 1 is selected the optical section fan motor operates as follows T time from the previous
28. Poor contact in the bypass table ex tended detection Switch connector terminals Check for continuity across the connector terminals If none replace them Defective bypass table extended detection switch Check if CN12 4 on the main PCB goes low when the bypass table extended detection Switch is turned on If not replace the by pass table extended detection switch 23 A paper jam is indicated as Soon as the main switch is turned on 3 6 36 A piece of paper torn from copy paper is caught around the regis tration or eject Switch Check visually and remove it if any Defective registra tion switch With 5 V DC present at CN17 1 on the main PCB if CN17 2 on the main PCB stays low when the registration switch is turned on and off replace the registration switch Defective eject Switch With 5 V DC present at CN2 7 on the main PCB if CN2 8 on the main PCB stays low when the eject switch is turned on and off replace the eject switch Problem Causes 1AF Check procedures corrective measures 24 OP is display ed when the eject cover is completely closed Poor contact in safety switch 2 connector termi nals Check for continuity across the connector terminals If none replace them Defective safety Switch 2 Check for continuity across the contacts of safety switch 2 If none when on replace safety switch 2 25 Others Wir
29. Poor contact in the toner feed motor connector termi nals Check for continuity across the connector terminals If none replace them Defective main PCB Run simulation 10 and check if 24 V AC is output across CN11 5 and CN11 6 on the main PCB If none replace the main PCB 6 The optical section fan motor does not operate Broken optical sec tion fan motor coil Check for continuity across the coil If none replace the optical section fan motor Poor contact in the optical section fan motor connector terminals Check for continuity across the connector terminals If none replace them Defective main PCB Run simulation 20 and check if CN16 2 on the main PCB goes low If not replace the main PCB 7 The internal cooling fan motor does not operate at all or does not turn at full speed Broken internal cooling fan motor coil Check for continuity across the coil If none replace the internal cooling fan motor Poor contact in the internal cooling fan motor connector terminals Check for continuity across the connector terminals If none replace them Defective main PCB Run simulation 10 and check if CN11 15 on the main PCB goes low about 12 V at half speed If not replace the main PCB 3 6 31 1AF Problem Causes Check procedures corrective measures 8 The ozone exhaust fan motor does not operate at all or does
30. HARTE 1 Replacing the drum 2 Cleaning the drum Adjusting the copy image after drum replacement reference 242 cea teens 3 3 44 1AF 3 3 6 Developing 3 3 46 1 Adjusting the position of the magnetic brush developing roller reference e dde dete SO en e dents 3 3 46 2 Adjusting the position of the doctor blade reference 3 3 47 3 Adjusting developing bias voltage reference 3 3 48 3 3 7 Transfer and separation section 1 Replacing the charger wires 3 3 49 2 Setting transfer voltage reference 3 3 52 3 Setting separation shift bias voltage reference 3 3 53 3 3 8 Cleaning section esses 1 Detaching and refitting the cleaning blade 2 Detaching and refitting the drum separation claws 3 3 56 3 3 9 Fixing and eject section 3 3 57 1 Replacing the fixing heater 3 3 57 2 Replacing the fixing unit thermistor 3 3 59 3 Detaching and refitting the fixing unit blade 3 3 60 4 Replacing fixing unit thermostats 1 and 2 3 3 61 5 Detaching and refitting the press roller and its separation cc este c
31. 0 3 6 13 t7 Fixing pere pee n neret 3 6 14 18 Image is out of focus 3 6 14 19 Image is not square longitudinally 3 6 14 20 Image is not square laterally 3 6 15 21 Image is partially missing laterally 3 6 15 3 6 2 Paper misfeads 4 vel e eee dede eop iin 3 6 16 1 A paper jam in the registration section is detected as soon as the main switch is turned on J30 3 6 16 2 A paper jam in the eject section is detected as soon as the main switch is turned on J50 3 6 16 3 A paper jam in the paper drawer is detected during copying PE appears hi n bids i 3 6 16 4 A paper jam on the bypass table is detected during copying dete dd 3 6 17 5 A paper jam in the paper conveying or fixing section is detected during copying J40 appears 3 6 17 6 A paper jam in the eject section is detected during copying JbO appears ete eee 3 6 18 3 6 3 PCB terminal voltages 2 3 6 19 1 Gomposite tnde ez re HERD 3 6 19 2 Main PCB 3 6 21 3 Operation unit PCB 3 6 26 1AF 3 6 4 Electrical problems 01 11 3 6 30 1 The mac
32. 2 Adjusting the position of the doctor blade reference Make the following adjustment if carrier or background appears on the copy image Procedure 1 Take the image formation unit out of the copier 2 Remove the two screws and the developing unit upper cover Screws Developing unit upper cover Figure 3 3 44 3 Adjustthe distance between the doctor blade and the developing roller using thickness gauges at the three points indicated by the arrows in the diagram Turn the three adjustment screws until the 0 55 mm gauge goes into the gap at each point and the 0 65 mm one does not e The smaller the distance the lighter the image the larger the distance the darker the image Doctor blade Adjustment screws lt Center 20 mm Developing roller Figure 3 3 45 3 3 47 1AF 3 Adjusting developing bias voltage reference The developing bias voltage is factory adjusted Only perform the following adjustment when carrier or background appears on the copy image after control VR202 on the high voltage transformer PCB has been turned accidentally Required adjustment tool Tester 1 pin connector Procedure terminal High voltage transformer PCB Remove the 1 pin developing bias connector from DB OUT on the high voltage transform er PCB and apply the tester s positive terminal to DB OUT Y Apply the tester s negative terminal to an uncoated part of the copier s frame 9
33. 2 Top plate 3 Accessories case Plastic bag 9 Instruction handbook Bypass cover case Air padded sheet Table stopper Upper part of the bypass cover 69 Lower part of the bypass cover 6 Copy tray 62 Power cord 3 Right spacer 69 Inner spacer 5 Upper hinge spacer 6 Lower hinge spacer Image formation unit spacer Plastic bag 1AF Remove the pins 1 Remove the tapes holding the two light source unit 1 pins and the one light source unit 2 pin on the upper right cover and then remove these pins Light source unit 1 pins ES Light source unit 2 pin Figure 3 1 4 2 Remove the tapes holding the two lens unit pins on the left cover and then remove the pins Lens unit pins pur TUE Qe Er 4557 a Lu Figure 3 1 5 1AF Remove the fixing unit spacers 1 Open the eject cover and remove the two fixing unit spacers holding both ends of the press roller Press roller ION Fixing unit spacers Figure 3 1 6 2 Close the eject cover 3 1 6 1AF Remove the tapes and spacers Detach the original holder and remove the paper from the contact glass Remove the tape on the top rear of the machine Refit the origin
34. 3 6 38 6 Paper jams 3 6 38 7 Toner drops on the paper conveying path 3 6 39 8 Abnormal noise is heard 3 6 39 1AF CONTENTS 3 7 Appendixes Timing chart NO T niece eret beendet 3 7 1 Timing chart NO 2 tee tne a ce dee Lee pets 3 7 2 Timing chart No 3 Composite PCB 1 3 Composite PCB 2 3 3 7 5 Composite POB 3 cie da etn 3 7 6 Operation unit PGB ede eee EE 3 7 7 Main PCB General connection diagram sess 3 7 9 General wiring diagram aree eire eee 3 7 10 THEORY AND CONSTRUCTION SECTION 1AF CONTENTS 1 1 Specifications 1 Specifications 2050 044 00000 1 1 1 1 1 1 1 1 2 Specifications DC 1560 1 1 3 1AF 1 1 1 Specifications DC 2050 TYPO eed Desktop Copying system Dry indirect electrostatic system Originals Sheets books and 3 dimensional Maximum size A3 11 x 17 Original feed system Fixed Copy paper Plain paper 60 80 g m for drawer feed 60 200 g m for bypass feed Special paper OHP film colored paper and letter head Note Use the bypass for special paper Copying sizes Maximum A3 11 x 17 Minimum AGR 5 2 x 81 2 Magnification ratios 64 141 1 increments Fixed ratios
35. Light source Halogen lamp 350 W Developing system Dry magnetic brush Developer 2 component ferrite carrier and N27T black toner Toner density control toner sensor Toner replenishing automatic from a toner hopper Transfer system Single positive corona charging 5 2 kV DC Separation system Single AC corona charging 4 1 kV AC 349 Fixing system Charge erasing system Cleaning system Functions a e pipan s Powersource Rated power consumption Dimensions Weight i Floor requirements Accessories Options eet ee eae Heat roller Heat source halogen heater 850 W with 120 V input 980 W with 240 V input Control temperature 175 C 347 F at normal ambient temperature Abnormally high temperature protection devices 140 C 284 F and 150 C 302 F thermostats Fixing pressure 127 4 N Exposure by cleaning lamp Cleaning blade 1 Self diagnostics 2 Simulation 3 Auto clear 30 270 s in intervals of 30 s 4 Auto start 5 Auto shutoff 6 Auto preheat energy saving 7 Auto exposure 8 Photo mode 9 Manual magnification selection 10 Auto magnification selection by original size entry 11 Auto paper selection by original size entry 12 Auto selection when the ADF is used 220 240 V
36. T EAS 5 2 NUTRAL arn 2 Com ND 4 an uk EX 5 F2 Swi D LIVE 3 3 B 1001 28 Ta Vo myn 6003 0001 2 Coot I bod ONE 4 M m 4 CN6 3 mm e 6 c lt e T C101 R112 NUTRAL C007 5 T 8 5 4 D104 NTC 6 6 R103 1 R104 20102 2 7 R102 3 7 1 39 T 2 110 e T 8 8 B D E G H 1 J 3 7 4 DC 1560 2050 KME S M e 1AF Composite PCB 2 3 A c E G H J 1 1 C206 R206 ZD401 m bi R401 gt CN3 4 7 CNET y gt CN22 24V 2 a US CN5 1 24V 9 2 8 7 C CN53 ADS C201 C207 Y PC2 C203 2 T 3 20402 yr 3 11 CN2 4 3 GND CN2 5 GND d m R402 CN26 GND L E Te ENS GND 4 LE R301 35 5V CN3 3 GND 4 Porn CN2 3 3 C306 CN3 1 save v C202 2 Hago R304 R305 8 818 5 R302 R303 5 TRNS 1 12 2 11 4 lt Ses gt 8 6 lt 7 8 G H J 3 7 5 e DC 1560 2050 KME S M
37. 1AF 3 4 1 Replacing the main PCB After replacing the main PCB remove the NVRAM from the old main PCB and fit it to the new main PCB If the new NVRAM is used perform the following steps Procedure Before removing the old NVRAM 1 Recordtheusersettings of the following items which must be reentered after replacement Drawer paper size setting Auto exposure adjustment Manual exposure adjustment 2 Enter simulation mode 3 Run the following simulations and record the counts Contents Maintenance count Service call records Jam counts Service call counts Paper feed counts 4 Exit simulation mode 5 Turn the main switch off and unplug the power cord 6 Replace the NVRAM with the new one 3 4 1 1AF After installing the new NVRAM 7 Insert the power plug and turn the main switch on 8 Enter simulation mode 9 Run simulation 70 10 Run simulation 93 to select the destination Caution Running simulation 93 changes the user s drawer paper size setting as follows 93 Destination setting Drawer paper size setting Inch specifications 11 x 81 2 Metric specifications A4 11 Run the following simulations to reenter or check the data recorded on the simulation label Contents Setting the folio size Adjusting the auto exposure reference value Setting the exposure amount Adjusting lateral magnification Adjusting longitudinal magnification Adjusting leading edge registration timing
38. CNIE CCNT8 2 H B D E R B 3 7 8 1AF 3 7 9 General connection diagram QN e 10 M a 8 8 z 2 2 8 920 a amp a ars RR OE 2 352 a o zur us a ARR 9 2 N 8 4 14414 la lo 5 In 2 SiG sisle ZERO gt ES 65 9 amp amp ojo l6 oo o El 2 29 Qi 95 e la la EEEE So Pole ER aajo fen foo TEER EES 55222299 re ziz axidav 25 sl g axuaav 5 orz 8 4 9 agak 3 ap
39. Figure 3 3 40 3 3 41 1AF 6 Detach the main charger from the image formation unit 7 Pull the drum shaft out of the rear of the drum 8 Holding both ends detach the drum from the image formation unit 1mm Rear Drum shaft E ring Drum rear bushing Drum shaft Figure 3 3 41 Detaching the drum 9 Fit the new drum Orient the drum correctly with the thin shaft hole on the machine front and the thick shaft hole on the machine rear 10 Push the drum shaft into the rear of the drum and while turning the shaft insert it fully into the drum Ensure there is a clearance of about 1 mm between the E ring on the drum shaft and the drum rear bushing 11 Refit the main charger to the image formation unit 12 Refit the image formation unit to the copier and close the front cover 13 Set the exposure amount see page 3 3 30 3 3 42 1AF 2 Cleaning the drum Clean the drum as follows when an image problem occurs or if the drum is dirty Precautions Avoid direct sunlight and strong light when cleaning the drum Dust in the air and from the cleaning pad may damage the drum during operation Avoid working in dusty place Clean the drum entirely even if it is only dirty locally Do not clean the drum with alcohol thinner or other organic solvent Required supplies Polishing cloth specified synthetic cotton Toner Procedure 1 Detach the drum see page 3 3 40 2 Apply a polishing cl
40. sssssssssesseeeeeneennnetnntnnt nnns 3 3 3 3 3 3 Main charging section 3 3 17 3 3 4 Exposure section 3 3 20 3 3 5 Drum section 3 3 40 3 3 6 Developing section essent 3 3 46 3 3 7 Transfer and separation section 3 3 49 3 3 8 Cleaning section ia 3 3 9 Fixing and eject 3 3 57 3 3510 Others Lui o eee etat e Et 3 3 67 3 4 PCB Initial Settings 3 4 1 Replacing the main 3 4 1 3 4 2 Adjustment free variable resistors VR 3 4 4 1AF 9 5 Self Diagnostics 3 5 1 Self diagnostic function 2 3 5 1 9 6 Troubleshooting 3 6 1 Image formation problems 3 6 1 3 6 2 Paper misfeeds 3 6 16 3 6 3 terminal voltages 3 6 19 3 6 4 Electrical problems 3 6 30 3 6 5 Mechanical problems sesenta 3 6 38 9 7 Appendixes Timing chart No 1 Timing chart No 2 TAMING Chart NOx eee Composite PCB 1 3 Composite PCB 2 3 Composite PCB 3 3 Operation unit PCB Main semi DTE DM d General connection diagram General wiring diagram 1AF CONTENTS 1 1 Specifications 1 Specifications 2050 044 00000 1 1 1 1 1 1 1 1 2 Specifications DC 1560
41. 1 Open the front cover 2 Shake the new toner cartridge up and down four or five times to agitate the toner Figure 3 1 15 3 Insert the toner cartridge into the developing unit along the rails Figure 3 1 16 3 1 12 1AF 4 Holding the toner cartridge with hand pull off the film Ml Sse SEV Figure 3 1 17 5 Close the front cover Adjust the levelling bolts 1 Remove the tapes and turn the two levelling bolts below the right side of the machine until the machine is level o o o 00 b Levelling a Figure 3 1 18 Adjusting the levelling bolts 3 1 13 1AF Install the table stopper 1 Pull out the bypass table 2 Insert the table stopper under the bypass table Bypass table Figure 3 1 19 Install the bypass cover 1 Fitthe bypass cover to the bypass table Bypass cover Figure 3 1 20 3 1 14 1AF Make test copies 1 Place paper in the paper drawer and make test copies Completion of machine installation 3 1 15 1AF 3 1 2 Setting initial copy modes Factory settings are as follows Conte
42. 1 Paper damp Check the paper storage conditions 2 Paper creased Change the paper 3 Drum condensation Clean the drum see page 3 3 43 4 Flawed drum Replace the drum see page 3 3 40 3 6 13 1AF 17 Fixing is poor Causes Causes 1 Wrong paper 2 Defective fixing pressure springs 3 Flawed press roller Check procedures corrective measures 1 Wrong paper Check if the paper meets specifications 2 Defective fixing pressure springs Replace the fixing pressure springs 3 Flawed press roller 18 Image is out of focus Causes Replace the press roller see page 3 3 62 Causes 1 Incorrect focus adjustment Check procedures corrective measures 1 Incorrect focus adjust ment 19 Image is not square longitudinally Causes Adjust the focus of the image see page 3 3 26 Causes 1 The height of mirror 2 is adjusted incorrectly Check procedures corrective measures 1 The height of mirror 2 Adjust the longitudinal squareness of the image see page is adjusted incorrectly 3 6 14 3 3 28 20 Image is not square laterally Causes 1AF Causes 1 The height of the mirrors 4 amp 5 frame is adjusted incorrectly Check procedures corrective measures 1 The height of the mirrors 4 amp 5 frame is adjusted incorrectly Adjust the latera
43. 24 V DC supply for OEFM output OEFM full speed half speed stop output 24 V DC supply for ICFM output ICFM full speed half speed stop output 24 V DC supply for KC option output KC option on off output 24 V DC supply for TC output TC on off output KC option installed not installed detection input TC installed not installed detection input 5 V DC supply for FTH output FTH detection voltage input DC supply for BYPPLSW output BYPPLSW on off input BYPEDSW on off input BYPEDSW scan sink DIG 0 output BYPPWSW SIG2 on off input BYPPWSW 5161 on off input BYPPWSW SIGO on off input 24 V DC supply for CL output CL on off output 24 V DC supply for RSOL output RSOL on off output DM forward reverse output Terminals CN Voltage 1AF Remarks 15 2 15 3 4 4 4 4 16 1 16 2 4 3 4 3 17 1 17 2 17 3 17 3 18 1 18 3 4 4 4 4 0 5 V DC 0 4 V DC 24 V DC 0 24 V DC 5V DC 0 5 V DC 5V DC 0 5 V DC DM abnormality detection input DM drive stop output 24 V DC supply for OPFM output OPFM on off output 5 V DC supply for RSW output RSW on off input 5 V DC supply for SSR output SSR on off output 3 6 25 1AF 3 Operation unit PCB 2 021 9 s 6 se FFE eH ooszere uu Ln 3
44. 3 6 34 19 Separation charging does not take place 3 6 35 20 No developing bias is output 3 6 35 21 PF is displayed while paper is present in the paper drawer 3 6 35 22 The size of paper placed on the bypass table is not displayed correctly titre eterne 3 6 36 23 A paper jam is indicated as soon as the main switch is t rmed on Hasse egeo e E 3 6 36 24 OP is displayed when the eject cover is completely closed 3 6 37 25 Others eek tee leiten se et aan re edad 3 6 37 3 6 5 Mechanical problems 3 6 38 1 No primary paper 3 6 38 2 No secondary paper feed 3 6 38 3 Skewed paper feed 3 6 38 4 The scanner does not travel 3 6 38 5 Multiple sheets of paper are fed at one time 3 6 38 6 Paper jams 3 6 38 7 Toner drops on the paper conveying path 3 6 39 8 Abnormal noise is heard 3 6 39 3 6 1 Image formation problems 1 No image entirely white See page 3 6 4 4 Background is visible See page 3 6 6 7 A black line appears laterally See page 3 6 8 2 No image entirely black See page 3 6 5
45. Note These labels are necessary only where required by regulations ON label OFF label Main switch Figure 3 1 28 17 Refit all the removed parts 3 1 22 1AF CONTENTS 3 2 Simulation 3 251 Sirmn ulatiornis 1 Running a simulation 2 Simulation list ciii be ect bea 3 Contents of simulations seen 3 2 6 3 2 1 Simulations The copier is equipped with a simulation function which can be used to check and adjust the operation of electrical components 1 Running a simulation Start Y Enter 10871087 with the numeric keys Y Enter the number of the simula tion to be executed with the numeric keys or exposure adjustment keys Press the print key Y The simulation is run Y Press the stop clear key Run again Run another simulation Enter 01 with the numeric keys and press the print key End 1AF IE Entering simulation mode 000 is shown on the copy quantity display Selecting a simulation The selected simulation number is shown on the copy quantity display Exiting simulation mode 3 2 1 1AF Selecting a mode Use the paper select key to select a mode during simulation The paper size indicator corresponding to the selected mode lights up Paper size indicators indicate the selected
46. Procedure 1 Remove the contact glass Move light source unit 1 to the center of the machine Remove each screw and retainer holding the scanner wires to light source unit 1 Unhook the wire springs on one end of each scanner wire from their holders on the left Unhook the round terminals of each scanner wire from their holders on the right Remove the scanner wires and install new ones Screw Scanner wire ao retainer Scanner wire spring Light source unit 2 Light source unit 1 Figure 3 3 27 Detaching the scanner wires 3 3 23 1AF 4 2 Installing the scanner wires Required installation jig Scanner wire drum clips P N 34968130 Procedure The procedure is similar for both front and rear wires The fitting of the rear wire is described here Numbers in circles correspond with those in Figures 3 3 28 to 3 3 30 1 Remove the contact glass and left cover 2 Holding the scanner wire with the spring on the right side of the machine and the round terminal on the left insert the ball into the hole in the scanner wire drum 3 Run the end with the spring of the scanner wire three times around the drum toward the machine inside nei pt aged de ved ud 2 4 Run the other end of the wire with the round terminal three and a half times around the drum toward the machine outside
47. until the toner feed motor off level is reached Toner feed motor on level 2 72 IN Tip rides PAX Ex Toner feed motor f piir saas perie 77 7 off level 2 70 b Copy operation o o Forced feed continuous operation Intermittent feed 1 s on O 5 s off Figure 1 3 23 When the toner sensor output voltage exceeds the toner feed motor on level the toner feed motor intermittent feed 1 s on 0 5 s off operation is carried out to feed the toner Whenthetonerisfed and the toner sensor output voltage falls below the toner feed motor off level the intermittent feed operation is stopped When the toner in the toner hopper runs low and even though the toner intermittent feed operation is continued the toner sensor output voltage rises above the AP detection level AP blinks on the copy quantity display and the toner feed motor forced feed continuously on operation starts At the same time the amount of toner remaining is detected by the toner level sensor 1 3 25 1AF D If the toner sensor output voltage falls to the toner empty end level within the toner feed motor forced feed operation time 3 minutes max the copier returns to the ready state and intermittent feed operations 3 minutes max are carried out until the toner sensor output voltage drops to the toner feed motor off level If the toner sensor output voltage does not fall to the toner empty end level within the forced
48. 68328170 68802070 61712870 TAPE CONTACT GLASS 69027070 SWITCH MAIN 61727540 INTERLOCK SWITCH 69312020 THERMAL PROTECTOR SCANNER 62207620 MAGNETFEEDSHIFT 69905030 LABEL HIGH VOLTAGE CAUTION EXP 62218011 SEPARATION CLAW 71804200 MAGNETPLATE TOP COVER 62218020 RATCHETSEPARATION 71804400 MAGNET CATCHER 63818250 REAR BUSHING TONER DISPOSAL ROLLER 71806550 SIZE INDICATOR BYPASS USA 63827080 FERRITECORE _ 71815161 FRONT SEAL SUB UNIT BLADE 65009050 SPRING DEVELOPING ROCK 71821491 SWITCH FEED SHIFT 65802080 RUBBER BOLT 71867000 MINIATURE FUSE 125V 8A JET UL CSA 65902670 CUSHION RUBBER 65914120 GEAR 18 IDLE DEVELOPING 86012350 OPTICALFILTER 72107210 72114320 72114331 SPRING BYPASS SOLENOID PIN DEVUNIT HANDLE HANDLE BELT DEVUNIT 66012390 FRONTSIZE INDICATION PLATE INCH 72114870 V RING 6 DIA 66015200 TONER MOTOR 72418410 GEAR 18 SPIRAL 66020110 COPYTRAYEXP 72807110 SPRING PAPER GUIDE PULLEY 66022131 GEAR 30 0EVELOPING DRIVE 72907620 FRICTION CLOTH CASSETTE 66023030 OPTICAL FAN 73210450 BUSH 6 66023042 DUCTOPTICALFAN 73905191 LABEL SUPPLY EF S 86023050 HOLDEA FILTER 73920080 BLADE HEAT ROLLER 66027021 DEHUMIDIFIER HEATER 75122090 GEAR FRONT 66028071 1 POWER SOURCE PCB 100 75704290 HINGE ORIGINAL HOLDER 66060010 COVER KEY COUNTER 75704450 MAT ORIGINAL HOLDER USA 66060020 RETAINER KEY COUNTER COVER 75710180 SPONGE MAIN CHARGER 66060030
49. Adjusting developing bias voltage reference 3 3 48 3 3 7 Transfer and separation section 1 Replacing the charger wires 3 3 49 2 Setting transfer voltage reference 3 3 52 3 Setting separation shift bias voltage reference 3 3 53 3 3 8 Cleaning section esses 1 Detaching and refitting the cleaning blade 2 Detaching and refitting the drum separation claws 3 3 56 3 3 9 Fixing and eject section 3 3 57 1 Replacing the fixing heater 3 3 57 2 Replacing the fixing unit thermistor 3 3 59 3 Detaching and refitting the fixing unit blade 3 3 60 4 Replacing fixing unit thermostats 1 and 2 3 3 61 5 Detaching and refitting the press roller and its separation cc este caste SAM eMe i et A a 3 3 62 6 Detaching and refitting the heat roller and its separation otters A NNR 3 3 64 7 Detaching and refitting the lower eject roller 3 3 66 3 3 10 3 3 67 1 Replacing the ozone filter eee 3 3 67 1AF 3 3 1 Precautions for assembly and disassembly 1 Precautions Be sure to turn the main
50. HOLDER TRANSFER CHARGER 34917170 PULLEY TRANSFER HOLDER 34917180 HOUSING HIGH VOLTAGE JUNCTION 34917190 LID HIGH VOLTAGE JUNCTION 34917200 GUIDE SEPARATION 34917210 SPACER TRANSFER CHARGER 34917220 LOWER FRONT SEAL TRANSFER 34917240 LOWER SPONGE TRANSFER 34917250 LOWER FRONT GUIDE TRANSFER 34918050 SHAFT THRUST 34918080 GEAR 31 THRUST 34918090 1 GEAR 19 DISPOSAL 34918120 SPONGE CLEANING 34918130 INNER SPONGE CLEANING 34918170 SPACER DRUM 34918180 LEVER PRESSURE RELEASE 34918200 SPRING THRUST 34918240 MOUNT SEPARATION SEPARATION CLAW 34918250 SLIDE PLATE SEPARATION CLAW 34918260 LEVER SEPARATION SEPARATION CLAW 34918270 SHAFLSEPARATION CLAW 34918310 MOUNT 23 BLADE 34918340 UPPER SPONGE CLEANING 34918350 HOLDER SEPARATION PULLEY 34918360 MOUNT SEPARATION PULLEY 34920010 HOUSING FIXING 34920020 BASE FIXING 34920030 FRONT FRAME FIXING 34920040 REAR FRAME FIXING 34920050 COVER FIXING 34920070 GEAR 40 HEAT ROLLER 34920080 THERMISTER FIXING Quantity USA y Fig No 120 o oc o Mp oca ca cA oc ON A A on ND A a cA SGoroooEXZEumuoowoooooo figuli E EADEM a 34920090 34920100 34920130 34920140 34920150 34920160 34920170 34920180 34920190 34920200 34920210 34920220 34920230 34920240 34920250 34920260 34920270 34920290 34920300 34920310 34920320 34
51. OPCB scan si OPCB scan si OPCB scan si nk nk nk OPCB scan sink nk nk nk DEG 0 output DEG 1 output DEG 2 output DEG 3 output DEG 4 output DEG 5 output DEG 6 output OPCB scan sink DEG 7 output OPCB return KEY 0 input OPCB return KEY 1 input OPCB return KEY 2 input Developing bias on off output Main charging on off output Transfer charging on off output Separation charging on off output Grid control voltage output 1 25 4 3 1 26 4 3 1 27 4 3 2 1 4 3 0 5V DC 0 5V DC 0 5 V DC 24 V DC Main charging control voltage output Transfer charging control voltage output HVTPCB abnormality detection input 24 V DC supply for BYPSOL output 2 2 4 3 2 3 4 3 2 4 4 3 2 5 4 4 2 6 4 4 2 7 2 9 2 8 2 9 3 1 3 2 3 3 3 4 3 6 22 0 24 V DC 24V DC 0 24 V DC 5V DC 0 5 V DC pulse 1 2 V DC 0 5 V DC 0 5 V DC pulse 0 5 V DC pulse 24 V DC 5 V DC 0 24 V DC pulse 0 24 V DC 24 0 V DC 5 0 V DC BYPSOL on off output 24 V DC supply for PFSOL output PFSOL on off output CASDSW scan sink output CASDSW on off input DC supply for ESW output ESW on off input Serial communication with ADF option output Serial communication with ADF option input 24 V DC supply input 5 V DC supply input HL light intensity control PWM output H on off output SSW2 on off input LHPSW on off input Terminal
52. VR602 and VR603 3 4 4 1AF CONTENTS 3 5 Self Diagnostics 3 5 1 Self diagnostic 3 5 1 1 Self diagnostic 3 5 1 1AF 3 5 1 Self diagnostic function 1 Self diagnostic display This unit is equipped with a self diagnostic function When it detects a problem with itself it disables copying and displays the problem as a code consisting of C followed by a number between 01 and 90 indicating the nature of the problem After removing the problem the self diagnostic function can be reset by opening and closing the front cover to turn safety switch 1 off and back on Metric Inch Recall Ld Figure 3 5 1 Service call code display 3 5 1 1AF Self diagnostic codes Contents Remarks Causes Check procedures corrective measures NVRAM problem Data in the check area FFOH to FFFH of the NVRAM do not match the specified initial values 0H to FH when the main switch is turned on or the eject cover is closed NVRAM problem After turning safety switch 1 off then back on run simula tion 70 and reenter the backup memory contents Defective main PCB If CO1 persists after reentering the backup memory contents replace the main PCB Drive motor problem The motor problem signal DM ALM is detected con tinuously for 2 s after the drive motor has been turned on 3 5 2 Defective ro
53. causing injury Do not install the copier in a humid or dusty place This may cause fire Q or electric Shock nct ttti Do not install the copier near a radiator heater other heat source or Q near flammable material This may cause fire Allow sufficient space around the copier to allow the ventilation grills to keep the machine as cool as possible Insufficient ventilation may Q cause heat buildup and poor copying performance e Always handle the machine by the correct locations when moving it Always use anti toppling locking devices on copiers so equipped Failure to do this may cause the copier to move unexpectedly or Q topple leading to Avoid inhaling toner or developer excessively Protect the eyes If toner or developer is accidentally ingested drink a lot of water to dilute it in the stomach and obtain medical attention immediately If it gets into the eyes rinse immediately with copious amounts of water and obtain medical attention Advice customers that they must always follow the safety warnings precautions in the copier s instruction handbook 2 Precautions for Maintenance WARNING Always remove the power plug from the
54. control value 190 5 Press the print key The new setting is stored 6 Press the all clear reset key Operation check mode is entered and the following operation takes place under the new setting All clear reset key 1200 ms Dev Bias 2932 ms g 2675 ms Timing chart 3 2 2 7 Press the all clear reset key The operation stops 8 Press the stop clear key EET REL 3 2 13 1AF Description Remarks 3 2 14 Making a blank lamp test copy 1 Enter 42 with the numeric keys 2 Press the print key Test copy mode is entered Test copy mode can be exited by pressing the all clear reset key 3 Open the original holder 4 Select the maximum size of copy paper 5 Press the print key The blank lamps light in a pre set order and a check pattern as shown below is printed Figure 3 2 3 6 Press the stop clear key Check blank lamp operation Description 1AF Remarks Setting the fixing temperature 1 Enter 46 with the numeric keys 2 Press the print key The current setting appears on the copy quantity display 9 Select a mode with the paper select key 4 Change the fixing control temperature of the se lected mode with the zoom up down keys Set the fixing control tempera ture during standby and copying Mode Contents Setting range Reference 1 2 3 Standby normal t
55. replace them Defective main PCB Run simulation 10 and check if CN15 3 on the main PCB goes low If not replace the main PCB Broken drive motor gear Check visually and replace the drive motor if necessary 3 The scanner motor does not operate C30 3 6 30 Broken scanner motor coil Check for continuity across the coil If none replace the scanner motor Poor contact in the scanner motor connector termi nals Check for continuity across the connector terminals If none replace them Defective main PCB Run simulation 21 and check if the motor drive coil energization pulse signals are out put at CN8 1 3 4 and 6 on the main PCB If not replace the main PCB Problem Causes 1AF Check procedures corrective measures 4 The lens mo tor does not operate C40 Broken lens motor Coil Check for continuity across the coil If none replace the lens motor Poor contact in the lens motor connec tor terminals Check for continuity across the connector terminals If none replace them Defective main PCB Run simulation 23 and check if the motor drive coil energization pulse signals are out put at CN5 9 10 11 and 12 on the main PCB If not replace the main PCB 5 The toner feed motor does not op erate Broken toner feed motor coil Check for continuity across the coil If none replace the toner feed motor
56. u 34927180 WIRE MAIN SWITCH 14 34927210 WIRE BLANK 13 34927220 WIRE CLEANING LAMP 1 1 34922070 REAR GROUND PLATE DRUM i 13 34922560 COLLAR FIXING 1 34922080 MOUNT DRIVE MOTOR 1 13 34922570 GEAR 23 0EVELOPING i 34922090 BUSHING DEVELOPING DRIVE 1 13 34922580 GEAR 32 DEVELOPING 1 34922100 SHAFT DEVELOPING DRIVE 1 13 34923010 DUCTLCOOLING 1 34922110 BUSHING RETARD 1 13 34923020 DUCT OZONE 1 34922120 SHAFT RETARD 1 13 34923030 DUCT B OZONE 1 34922130 MOUNT PCB 1 14 34923040 DUCT C OZONE 1 34922170 TENSION PLATE PAPER FEED 1 14 34923060 SPONGE COOLING DUCT 2 34922180 TENSION PLATE DEVELOPING 1 13 34923070 SPONGE DUCT OZONE 1 34922190 BELTFIXING 1 18 34923080 SPONGE B DUCT OZONE 1 34922200 BELT DEVELOPING 1 13 34925020 COVER OPERATION UNIT 1 34922210 BELT PAPER FEED 1 13 34925030 KEY 10 OPERATION UNIT 1 34922220 GEAR 18 RETARD 1 13 34925040 1 34922230 GEAR 18 1 13 34925050 KEY STOP CLEAR 1 34922240 SHAFTFDXING DRIVE 1 13 34925060 KEY RESET 2 34922250 ARM SAFETY SWITCH 1 14 34925070 KEY EXPOSURE 8 34922260 SHAFT ASAFETY SWITCH 1 14 34925080 KEY 7SEGMENT 1 34922270 SHAFT B SAFETY SWITCH 1 2 34925100 UNIT INCH 1 34922280 PULLEY 30 1 13 34925110 SHEETDUST SHIELD 1 34922290 GEAR 80 34 1 13 34926010 MOUNT MAIN SWITCH 1 34922300 GEAR 60 40 1 13 34926020 MOUNT AKEY COUNTER 1 34922310 GEAR 64 20 1 13 34926030 MOUNT B KEY CO
57. 0 auto mode Selecting the exposure scale 19 steps Setting the auto clear time 90s Setting the auto preheat time 15 min Setting the auto shutoff time 30 min Setting the paper size Folio Setting the maximum preset number of copies 100 Setting operation under the toner empty condition 0 unlimited 0 single copies Selecting between auto start on off 1 on Setting the destination Inch models 0 Metric models 1 Setting the optical section fan motor control 0 normal control 3 2 5 1AF 3 Contents of simulations Description Remarks Exiting simulation mode 1 Enter 01 with the numeric keys 2 Press the print key The copier returns to the nor mal mode Copying without paper Check machine 1 Remove the connector from CN1 on the high volt operation age transformer PCB Caution Copying without paper with connector CN1 removed applies a small amount of toner to the drum surface so do not run this simulation too long Enter 02 with the numeric keys Press the print key Remove all the paper from the paper drawer and bypass table 5 Select copy modes Enter the number of copies with the numeric keys Press the print key to start copying Copying contin ues until the set number of copies have been made or the stop clear key is pressed Enter 10871087 with the numeric keys The copier exits copying with
58. 1 13 M2105930 CLAMP NAD 04 KITAGAWA 5 14 M2105940 CLAMP NAD OS KITAGAWA 2 15 34907150 PULLEY CASSETTE 2 16 34907170 f INNER REINFORCEMENT BASE 1 17 34907180 WORKPLATE PRESSURE RELEASE 1 18 34907190 RIGHT MOUNT CASSETTE PULLEY 1 34907300 PIN CASSETTE 2 34907310 GUIDE CASSETTE 1 34907370 GUIDE B CASSETTE 1 34909080 RAIL IMAGE FORMATION 2 34920230 POSITIONING PLATE FIXING 4 34920270 LOWER GROUND PLATE FIXING 1 34921070 BASE EJECT TRAY 1 34922420 GEAR 15 1 65802080 RUBBER BOLT 2 65902670 CUSHION RUBBER 2 71804400 MAGNETCATCHER 1 34905090 LABEL PAPER SET 1 M2109170 WIRE SADDLE WS 1NS VO 4 34909060 RETAINER LEVER 1 34909070 LEVER LOCK f 34909090 GROUND PLATE IMAGE FORMATION LOCK 1 34922270 SHAFT B SAFETY SWITCH 1 34926070 SHEET WIRE PROTECTION 2 65009050 SPRING DEVELOPING ROCK 1 68305090 CAUTION LABEL HIGH TEMPERATURE L EXP 1 Parts with are component parts or sub assembiies of the 349 FIG 3 CASSETTE 349 Quantity Description USA 34900120 CASSETTE ASS Y 68802070 SPRING A LIFT UP 28006151 SPRING CASSETTEB 34904090 COVER CASSETTE 34904170 STOPPER CASSETTE 34907010 CASSETTE PAPER FEED 34907020 FRONT CURSOR CASSETTE 34907030 REAR CURSOR CASSETTE 34907040 FRONT CLAW CASSETTE 34907050 REAR CLAW CASSETTE 34907060 LEVER CURSOR RETAINING 34907070 PIN CLAW CASSETTE 34907080 BASE CASSETTE 134907100 LEVER CASSE
59. 1 3 5 Transfer and separation 147 pulses 140 ms after the scanner has started scanning and the home position switch HPSW hasturned off transfer and separation charging starts and the registration solenoid RSOL turns on to start secondary paper feed 220 ms after the trailing edge of the paper has turned the registration switch RSW off transfer charging ends C 200 ms after transfer charging has ended separation charging ends 1 3 33 1AF 6 Cleaning section The cleaning section consists of the cleaning blade which removes residual toner from the drum surface after transfer and the cleaning spiral that carries the residual toner back to the toner hopper The cleaning unit employs the blade cleaning method Figure 1 3 32 Cleaning section Drum 3 Cleaning spiral 2 Cleaning blade Lower cleaning seal 1 3 34 1AF 7 Charge erasing section Blank lamps Cleaning lamp pz Zr Figure 1 3 33 Charge erasing section The charge erasing section consists of the blank lamps and the cleaning lamp Theblanklamps BL are 44 LEDs Allthe LEDs lightto create leading edge andtrailing edge blank cut margins During exposure the required number of the 44 blank lamps on both sides are lit depending on the paper size and the magnification ratio removing charge from the sections of the copy where no image is to be formed The cleaning lamp CL removes residual charge from the drum surface CN9 1
60. 1 8 2 1 2 4 2 2 2 3 2 7 2 8 2 9 3 1 3 6 20 Local AC supply voltage 24 V DC 24 V DC 5V DC 0 24 V DC pulse 0 24 V DC 24 V DC 5 V DC 24V DC Local AC supply voltage 24V DC 0 24 V DC 0 24 V DC AC supply input Supply for HL output 24 V DC supply for HVTPCB output 24 V DC supply for MPCB output 5 V DC supply for MPCB output HL light intensity control PWM input H on off input SSW2 on off output 5 V DC supply for DM output 24 V DC supply for DM output AC supply for H output 24 V DC supply for SSW2 output SSW2 on off input SSW2 off on input 2 Main PCB 1AF e ons m mer iH 2 12 dod m 2 i 9 Ww wn r s 14 gt 970 9 8 m ge r Q 164 H gt R22 1 2 1 d PL 2 107 Res L 9 8 8 4 lE 122 R24 4 L 5 P 4 g io R26 1 2 1 E ms R27 J L R28 J i ics Dh SUR f 5 o 4 L e fu 5 is mee io 3 L 8 lt gt z 10 10 02 cy V4 40 8 5 6 2 2 1 1 E c c 54 16 7 H 4
61. 291 AS 5 10601 am emol 7422 29 829 3M 290 5 979 30 11 820 z 57101 20 1820 amp I Fi AO 0820 u 2998 AD 9 329 et MSGOL 8 Sl o ERN 5 asa 21215 Wivwa 9 Wal s I NoD SNI is ro seroh i9 5825 29008 eg A9 Lo 8 cis 19 9822 38 vio r felt 820 A9 510 9 Tio zi E 38 255 S119 E 8 x 35 6912 2 55 5 2 AO 9119 Trost g lu al8 ENDO NS 2 BB A9 Lo ie 5 B B A9 E819 5751 5 AO 8110 CN 3 x x al 8 38 99157 TADES AO 6 12 fo SH m Md T Teese 38 997 918 1425 30815 X el 19 TI So icio E 2910 1 X9 6 29 MA 1920 ELLA 2 PNE 18 E 3 alc sua cB zs J S 19 S220 a9 E 82118 5819 SEENE 5 2 8 SERA 0 0 Se RE Sige See ated dz 51 9 612 g 00225 AO 12207 S E lt 2 E X8 iod TPAD 2227 8 5 A9 229 5 g MA g dd Tero 8 0 8 Fal elf lf ol fel gt casses css sisse M 8 gt 49 2807 T ggg eller o noo 3H Z 9 919 5 Fl 9_ 56 66 66 6
62. 32 FIG 9 IMAGE FORMATION SECTION 34 DEVELOPING E E DV EUR PURI 18 EXTERIOR COVERS FIG 1 1 o 4 awn EXTERIOR COVERS 34904010 34904130 34904150 34904020 34904030 34904040 34904050 34904070 34904080 34904160 34904180 34904190 34905060 34905080 73905191 28173800 Description FRONT COVER HINGE RELEASE STOPPER MAGNET RIGHT FRONT COVER UPPER RIGHT COVER LEFT COVER LOWER RIGHT COVER UPPER REAR COVER REAR COVER INNER FRONT COVER COVEBADF MAGNET RELEASE LABEL SIM LABEL CONVEYING JAM LABEL SUPPLY EFS CAUTION LABELB Quanti u SA 120V E E EAE S EE E A S Parts with are component parts or sub assemblies of the intake navn aires agcamblhe ammnarima imma 349 amp 2 FRAMES E Quantity Description USA 120 1 29806810 BUSHING 6 REGISTRATION 1 2 34902020 FRONT REINFORCEMENT BASE 1 3 34902030 REAR REINFORCEMENT BASE 1 4 34902050 BOLTLEVEL 2 5 34904120 INNER COVER CASSETTE 1 6 34906020 PULLEY LIMITER 1 7 34906030 TORQUE LIMITER BYPASS 1 8 34906080 MOUNTLIMITER 1 9 34906080 SHAFT LIMITER 1 10 34906090 LEVER LIMITER ti 34906100 COLLAR POSITIONING 1 12 34906110 SPRING LIMITER SUPPORT
63. 4 39 2 70 17 62 6 27 30 86 5 41 67 18 64 4 23 6 42 8 63 19 66 2 20 7 44 6 60 20 68 17 8 46 4 57 21 69 8 13 9 48 2 53 22 71 8 10 50 50 23 73 4 11 51 8 47 24 75 2 12 53 6 43 25 77 1 3 14 1AF 3 Exposure section H i 1 o fa ON 2831 Figure 1 3 12 section Mirror 1 Light source unit 2 Mirror 2 Main reflector 3 Mirror 3 49 Auxiliary reflector Mirror 4 Scanner motor SM 5 Mirror 5 9 Optical section fan motor 6 Mirror 6 AE sensor AES Halogen lamp HL Home position switch HPSW Optical section thermostat Lens home position switch LHPSW 9 Lens Dust filter Light source unit 1 1 3 15 1AF This copier employs a slit exposure system with a fixed original table and a halogen lamp HL as the light source The optical section consists of light source units 1 and 2 Light source unit 1 carries the halogen lamp and the main and auxiliary reflectors Each unit travels from one side of the machine to the other along scanner rails at machine front and rear When an enlargement or a reduction ratio is selected the scanning speeds of the two light source units and the positions of the lens and mirrors 4 and 5 are changed altering the distance between the original and the drum At any magnification ratio light source
64. 4 Mechanical construction 1 Paper feed section 25 1 1 Paper feed from the paper 1 3 8 1 2 Paper feed from the bypass 1 3 9 2 Main charging section E Surface potential correction 3 Exposure section teen ene Exposure control for manual exposure and photo modes Exposure control for auto exposure mode Light intensity correction for enlargement and reduction uoo M 1 3 20 Light intensity correction by the user setting 1 3 20 4 Developing section 2 Formation of the magnetic brush sese Toner density Correcting toner sensor output voltage S Toner level detection 2 2 5 Transfer and separation 6 Cleaning section 7 Charge erasing section 8 Fixing and eject section whe Heating the heat roller and detecting temperature 1 3 39 Fixing temperature 1 3 40 Paper separation rt ettet ete tre perta 1 3 42 1 3 1 Part names and their functions
65. BL DIG 0 7 CN9 8 BL CN9 9 BL SEG 0 2 CNO 11 chota DTH lt 5VDC W CN9 13 CL REM CN13 2 Ea N MPCB Figure 1 3 34 Charge erasing section block diagram 1 3 35 1AF Scan start Secondary paper feed Print key HPSW ESW SM DM gt te 147 P 140 ms RSOL 1500 ms CL l 75 ms 2 1000 ms 1103 ms 8 BL Allon Side erasure Allon Manual exposure mode A4 11 x 81 2 copy paper magnification ratio 100 1 Varies depending on the setting by simulation 27 2 Varies depending on the magnification ratio and the setting by simulation 54 3 Varies depending on the setting by simulation 59 Timing chart 1 3 6 Charge erasing When the print key is pressed the drive motor DM and cleaning lamp CL turn on to remove residual charge from the drum surface after residual toner has been removed in the cleaning section 300 ms after the print key is pressed all the blank lamps BL turn on 75 ms after the scanner has started scanning and the home position switch HPSW has turned off the required number of blank lamps BL for side erasure light depending on the paper size and the magnification ratio removing unnecessary charge in the non image forming area D 1103 ms after the secondary paper feed has started and the registration solenoid RSOL has turned on all the blank
66. Boss Blade mount Figure 3 3 52 Removing the cleaning blade 5 Fit the new cleaning blade Ensure the cleaning blade is not riding over the boss of the blade mount 6 Slide the blade lever toward the rear to lock the blade away from the drum 7 Refit the drum and main charger 8 Refit the image formation unit to the copier and close the front cover 3 3 55 1AF 2 Detaching and refitting the drum separation claws Replace the drum separation claws as follows Procedure 1 Open the front cover and take the image formation unit out of the copier 2 Detach the main charger and drum 3 Remove the two screws and separation claw mount When refitting the separation claw mount ensure the claw lever sits between the two tabs of the blade mount Blade mount Separation claw lever Separation claw mount Screws Figure 3 3 53 4 Remove the separation claw lever from the claw mount 5 Remove the separation claw slide plate from the claw shaft 6 Remove the drum separation claws from the shaft Separation claw Separation claw lever 4 Separation claw shaft Z Drum separation claw Figure 3 3 54 Removing the drum separation claws 7 Refit all the removed parts 3 3 56 1AF 3 3 9 Fixing and eject section 1 Replacing the fixing heater Replace the fixing heater as follows Procedure 1 Detach the left cover 2 Remove the white 1 pin connector of the fixing heater red 1 pin connector of the
67. LEY VAUIVIININEIN I gt 2 Dj E ool wx 28 FIG 14 ELECTRICAL COMPONENTS 349 1 Part No Description Description 1 34922250 ARM SAFETY SWITCH 1 34993110 PARTS OPERATION UNIT ASS Y INCH SP 1 2 34922260 SHAFT A SAFETY SWITCH 1 34901060 OPERATION UNIT ASS Y 1 3 34922490 SOURCE 1 34925020 COVER OPERATION UNIT 1 4 34958020 MAIN PCB ASS Y SP 1 34925030 KEY 10 OPERATION UNIT 1 5 34993241 PARTS IC ROM SP 1 34925040 KEYPRINT 1 5 66227320 IC NVRAMA 1 34925050 KEY STOP CLEAR 1 7 34922170 TENSION PLATE PAPER FEED 1 34925060 KEY RESET 2 8 34904140 COVER COUNTER 1 34925070 KEY EXPOSURE 8 9 34907240 MOUNT CASSETTE DETECTION 1 434925080 KEY 7SEGMENT 1 10 34907250 LEVER CASSETTE DETECTION 1 84925100 SHEET OPERATION UNIT INCH 1 1 34917180 HOUSING HIGH VOLTAGE JUNCTION 1 34825110 SHEET DUST SHIELD 1 12 34917190 LID HIGH VOLTAGE JUNCTION 1 13 48928105 IDLE PULLEY 15 1 14 34922130 MOUNT PCB 1 15 34826010 MOUNT MAIN SWITCH 1 16 34926020 MOUNT A KEY COUNTER 1 17 34926030 MOUNT B KEY COUNTER 1 18 34926049 MOUNT A OPERATION UNIT 1 19 34926050 MOUNT A OPERATION UNIT 1 20 34927110 WIRE IMAGE FORMATION JUNCTION 1 21 34927130 WIRE COMPOSITE CIRCUIT 1 22 34927180 WIRE MAIN SWITCH 1 23 34927230 WIRE SOLENOID 1 24 63827080 FERRITE CORE 1 25 34993300 PARTSHIGH VOLTAGE TRA
68. Setting the lens unit rank Adjusting exposure amount for enlargement reduction mode Setting transfer voltage Setting the drum potential Setting the fixing temperature Setting the fixing preheat temperature Adjusting ADF leading edge registration timing Adjusting the leading edge margin Adjusting the side erasure Adjusting the trailing edge blank cut Adjusting the toner sensor control voltage Setting the maintenance cycle Checking clearing the maintenance count Checking clearing service call records Checking clearing jam counts Checking clearing the service call counts Checking clearing the paper feed counts Selecting between double single counts Setting initial exposure mode Selecting between manual auto modes Selecting the exposure scale Setting the auto clear time Setting the auto preheat time Setting the auto shutoff time 3 4 2 1AF Contents Setting the paper size Setting the maximum preset number of copies Setting operation under the toner empty condition Selecting between auto start on off Setting the optical section fan motor control 12 Exit simulation mode 13 Reenter the contents of the user settings recorded in step 1 3 4 3 1AF 3 4 2 Adjustment free variable resistors VR The variable resistors listed below are set at the factory prior to shipping and cannot be adjusted in the field High voltage transformer PCB VR101 VR201 VR202 VR301 VR401 and VR402 Composite PCB VR601
69. across the coil If none replace the registration solenoid Poor contact in the registration sole noid connector terminals Check for continuity across the connector terminals If none replace them Defective main PCB Run simulation 12 and check if CN14 2 on the main PCB goes low If not replace the main PCB Problem Causes 1AF Check procedures corrective measures 12 The halogen lamp does not light Broken halogen lamp filament Check for continuity If none replace the halogen lamp see page 3 3 20 Optical section thermostat trig gered Poor contact in the composite PCB connector termi nals Defective main PCB Defective compos ite PCB See page 3 6 5 13 The halogen lamp does not turn off Defective main PCB If HL CONT PWM signal is always output from CN4 5 on the main PCB replace the main PCB Defective compos ite PCB If the halogen lamp does not turn off when no HL CONT PWM signal is input to CN2 7 on the composite PCB replace the compos ite PCB 14 The cleaning lamp does not light Broken cleaning lamp coil Check for continuity If none replace the cleaning lamp Poor contact in the cleaning lamp con nector terminals Check for continuity across the connector terminals If none replace them Defective main PCB Run simulation 10 and check if CN13 2 on the main PCB goes l
70. bypass upper pulley 3 3 6 1AF 4 Replacing the bypass paper width switch Replace the bypass paper width switch as follows Important After replacing the bypass paper width switch be sure to perform 7 Adjusting the position of the bypass table adjuster Procedure 1 Remove the bypass right lower and rear covers Unplug all the connectors inserted into the composite PCB Remove the two screws and composite PCB Remove the two screws and power supply assembly Remove the bypass table 10 pin connector from CN12 on the main PCB Openthe drawer and remove the two screws holding the bypass table assembly on the machine front 7 Remove the two screws inside and the one on the rear from the bypass table assembly and detach the assembly from the copier Main PCB Composite PCB Screws Screws Screw Screws Power supply assembly Figure 3 3 7 Detaching the bypass table assembly Crews 3 3 7 1AF 8 Reverse the bypass table assembly and remove the 5 pin connector of the bypass paper width switch 9 Remove the two screws and bypass paper width switch Screws Bypass paper width switch Bypass table assembly Figure 3 3 8 Detaching the bypass paper width switch 10 Apply the specified grease to the printed surface of the new bypass paper width switch shaded area in the diagram and fit the switch to the bypass table assembly Apply the specified grea
71. chart 1 3 7 Fixing temperature control 210 ms after the main switch MSW has been turned on the fixing heater turns on to heat the heat roller 300 ms after the main switch MSW has been turned on the internal cooling fan motor ICFM rotates at full speed for 1000 ms and then at half speed Inlowtemperature mode when the fixing temperature reaches 167 C 332 6 F the drive motor DM and developing bias turn on to start stabilization drive control When the fixing temperature reaches 170 C 338 F primary stabilization is achieved Copying is enabled if the time from the main switch MSW being turned on has reached the following 1 s if the fixing temperature was 100 C 212 F or above when the main switch was turned on 43 s if the fixing temperature was between 13 C 55 4 F and 99 C 210 2 F and the external temperature was 18 C 64 4 F or above when the main switch was turned on or 69 s in low temperature mode the external temperature is below 20 C 68 F When copying is enabled in low temperature mode the drive motor DM turns off and after 200 ms the developing bias turns off to end stabilization drive control When the fixing temperature reaches 175 C 347 F secondary stabilization is achieved and the fixing heater H is turned on and off as required to keep the fixing temperature at 175 C 347 F 1 3 40 1AF Fixing temperature control in environmental mode The fixing control te
72. code is cleared To clear all the service call counts 6 Press the all clear reset key All the service call counts are reset to 0 7 Press the stop clear key 3 2 25 1AF Description Remarks Checking clearing the paper feed counts Enter 77 with the numeric keys Press the print key The current count appears on the copy quantity display Select the mode to be displayed with the paper se lect key Mode Contents Setting range Bypass 100 000s and 10 0005 digits 0 to 99 Bypass 1 0005 and 1005 digits 0 to 99 Bypass 10s and 1s digits 0 to 99 Drawer 100 000s and 10 000s digits 0 to 99 Drawer 1 000s and 1005 digits 0 to 99 Drawer 10s and 1s digits 0 to 99 To clear the paper feed counts by paper sources 4 n modes 1 2 amp 3 or modes 4 5 amp 6 set the values to 0 with the zoom up down keys Press the print key The count for the selected pa per source is cleared To clear all the paper feed counts 6 Press the all clear reset key All the paper feed counts are reset to 0 7 Press the stop clear key 3 2 26 1AF Description Remarks Selecting between double single counts Switch the count ing method for the total and Press the print key The current setting appears maintenance the copy quantity display counters be Select the total counter counting method with the tween double zoom up down keys and single Enter 80 wit
73. detected during copying J40 appears 3 6 17 6 A paper jam in the eject section is detected during copying JbO appears ete eee 3 6 18 3 6 3 PCB terminal voltages 2 3 6 19 1 Gomposite tnde ez re HERD 3 6 19 2 Main PCB 3 6 21 3 Operation unit PCB 3 6 26 1AF 3 6 4 Electrical problems 01 11 3 6 30 1 The machine does not operate when the main switch is turned Om oie eese erbe tiet dd 3 6 30 2 The drive motor does not operate C20 3 6 30 8 The scanner motor does not operate C30 3 6 30 4 The lens motor does not operate C40 3 6 31 5 The toner feed motor does not operate 3 6 31 6 The optical section fan motor does not operate 3 6 31 7 The internal cooling fan motor does not operate at all or does not turn at full speed sess 3 6 31 8 The ozone exhaust fan motor does not operate at all or does not turn at full speed 3 6 32 9 The paper feed solenoid does not operate 3 6 32 10 The bypass solenoid does not operate 3 6 32 11 The registration solenoid does not operate 3 6 32 12 The halogen lamp does not light 3 6 33 13 The halogen lamp does not turn
74. developing roller uniformly Figure 3 1 13 Loading developer 4 Refit the developing unit top lid to the image formation unit Unlock the cleaning blade 1 Push up the blade mount on the left of the image formation unit and slide the blade lever toward the machine front The cleaning blade is unlocked and comes into contact with the drum Blade mount Blade lever Figure 3 1 14 Unlocking the cleaning blade 2 Place the image formation unit back into the machine and close the front cover 3 1 10 1AF Connect the power plug 1 Insert the power plug into the wall outlet Carry out initial developer setting simulation 60 Turn the main switch on and enter 10871087 with the numeric keys to enter simulation mode 2 Enter 60 with the numeric keys and press the print key 3 Press the print key After about 3 minutes the toner sensor control voltage is automatically set and the value appears on the copy quantity display Display example 198 Be sure to record the set value on the simulation label Check that the copy start indicator is blinking the indicator remains unlit if automatic setting of the toner sensor control voltage has failed 4 Press the stop clear key Exit simulation mode 1 Enter 01 with the numeric keys and press the print key Simulation mode is exited 3 1 11 1AF Install a toner cartridge
75. for continuity across the connector termi nals Remedy or replace if necessary Defective main PCB Replace the main PCB and check the operation Defective power source box Replace the power source box and check the operation 3 5 7 1AF CONTENTS 3 6 Troubleshooting 3 6 1 Image formation problems 3 6 1 1 No image entirely 3 6 4 2 No image entirely black 3 6 5 3 Image is too light 3 6 6 4 Background is visible 3 6 6 5 A white line appears longitudinally 3 6 7 6 A black line appears longitudinally 3 6 7 7 A black line appears laterally 9 6 8 8 One side of the copy image is darker than the other 3 6 9 9 Black dots appear on the image 3 6 9 10 Image is blurred onines 3 6 10 11 The leading edge of the image is consistently misaligned with theoria nsien otea doeet e Ded c ters 3 6 10 12 The leading edge of the image is sporadically misaligned with the originial c ort oec c rece dde 3 6 11 13 Paper creases 9 6 11 14 ERE redit tene 3 6 12 15 Black lines appear on both sides of the image in reduction CODIGOS rete Mete 3 6 13 16 Image is partly
76. found to be normal replace the high voltage transformer PCB 8 One side of the copy image is darker than the other Causes 1AF Causes 1 Unevenly distributed halogen lamp light 2 Dirty optical section 3 Dirty main charger wire or grid Check procedures corrective measures 1 Unevenly distributed halogen lamp light Adjust the positions of the light adjusters see page 3 3 22 2 Dirty optical section Clean the mirrors dust filter and any other dirty parts in the optical section 3 Dirty main charger wire or grid 9 Black dots appear on the image Causes Check if the main charger wire or grid is dirty If it is replace it Causes 1 Dirty or flawed drum 2 Dirty contact glass 3 Deformed cleaning blade Check procedures corrective measures 1 Dirty or flawed drum Clean the drum or if it is flawed replace it see page 3 3 40 2 Dirty contact glass Clean the contact glass 3 Deformed cleaning blade Replace the cleaning blade if it is deformed see page 3 3 54 3 6 9 1AF 10 Image is blurred Causes Causes 1 Scanner moving erratically 2 Foreign matter on the scanner rail 3 Deformed press roller 4 Drive system problem Check procedures corrective measures Scanner moving erratically Adjust the tension of the scanner wire see page 3 3 23 Foreign matter
77. indicator Zoom up key Zoom down key Manual key Manual indicator Copy quantity magni ficationdisplay Recall key Zoom copy indicator Paper source indicators Checkpaper size direction indicator Maintenance indicator Adi toner indicator ADF jam indicator Paper select key Paper size indicators Original select key Original size indicator DC 1560 2050 KME S M 1AF 1 3 2 Machine cross section gt desine UE Light path 7 Paper path Figure 1 3 3 Machine cross section Paper feed section page 1 3 6 Main charging section page 1 3 10 Exposure section page 1 3 15 Developing section page 1 3 21 Transfer and separation section page 1 3 31 Cleaning section page 1 3 34 Charge erasing section page 1 3 35 Fixing and eject section page 1 3 37 1 3 3 1AF 1 3 3 Drive system 1 3 4 As viewed from machine rear Figure 1 3 4 Drive system copier main body Drive motor gear Gear 60 40 Gear 60 24 Gear 64 20 Gear 23 Gear 60 50 Blade thrust gear 31 Toner recycle gear 19 Developing drive belt Pulley 16 machine rear Gear 25 machine front Registration gear 15 30 Feed belt Registration collar Pul
78. lamps BL turn on 1000 ms after the last sheet has been ejected turning the eject switch ESW off the blank lamps BL turn off 1500 ms after the eject switch ESW has turned off the drive motor DM and cleaning lamp CL turn off at the same time 1 3 36 1AF 8 Fixing and eject section ON Ca 42 Figure 1 3 35 Fixing and eject section Fixing unit cover Fixing pressure springs 2 Fixing unit blade Upper eject pulley 3 Fixing unit front guide 2 Lower eject roller Fixing unit upper guide Fixing heater 5 Heat roller Fixing unit thermostat 1 TH1 6 Press roller 9 Fixing unit thermostat 2 TH2 Heat roller separation claws Fixing unit thermistor FTH Press roller separation claws Eject switch ESW Separation claw springs 1 3 37 1AF The fixing and eject section consists of the parts shown in Figure 1 3 35 When the paper reaches the fixing section after the transfer process it passes through the gap between the press roller and heat roller which is heated by the fixing heater H where pressure is applied by the pressure springs so that toner on the paper is melted and fused onto the paper When the fixing process is completed the paper is separated from the heat and press rollers by their separation claws and is ejected out of the copier by the rotation of the upper eject pulley and lower eject roller
79. longitudinally correct Press the stop clear key ae Exit simulation mode End 3 3 36 The new setting is stored Change the setting with the zoom up down keys Decrease the value if the image is longer longitudinally than the original Increase the value if the image is shorter longitudinally than the original Setting range 0 to 15 Reference 7 1AF 12 Adjusting exposure amount for enlargement reduction mode Make the following adjustment after 8 Setting the exposure amount has been completed Start Enter simulation mode Procedure Y Enter 29 with the numeric keys R L M Press the print key Y Place the NTC on the contact glass and ensure A3 11 x 17 paper is present Select the mode to be adjusted Mode 1 enlargement copy with the paper select key Mode 2 reduction copy Y Press the all clear reset key Press the print key 1 The new setting is stored Press the print key to make a test copy Change the setting with the zoom up down keys Increase the value if the image is abnormally dark Decrease the value if the image is abnormally light Is the copy image correct Setting range 102 to 243 References 166 for enlargement copy 170 for reduction copy Press the stop clear key Exit simulation mode
80. manual mode Exp 4 when the AE sensor read in value is the NTC level set in mode 2 by simulation 22 and at the intensity for manual mode Exp 7 1 when the read in value is the NPTC level set in mode 3 In auto exposure mode the drum potential is decreased by 170 V from the normal level and the halogen lamp voltage is increased when the AE sensor read in value is below the setting for mode 3 in simulation 22 When the AE sensor read in value falls in the range between the mode 3 and mode 2 settings by simulation 22 the halogen lamp voltage is controlled based on the gradient determined by the values set by simulation 24 For read in values above the mode 2 setting of simulation 22 the halogen lamp voltage is kept at a constant level so that the lamp lights at the intensity for manual mode Exp 4 1 3 19 1AF Light intensity correction for enlargement and reduction modes The halogen lamp light intensity for enlargement and reduction modes is determined by the value for copying at 100 magnification and the correction values set by simulation 29 Light intensity correction value 4 Mode 1 sim 29 141 Mode 2 sim 29 64 Magnification 41 ratio Figure 1 3 17 Correction of light intensity for reduction and enlargement modes The correction values for reduction 64 and enlargement 14196 copying are linked by a straight line through the value for 100 magnification and the light intensity is cor
81. mode Mode 1 Mode 2 Mode 3 Mode 4 Mode 5 Mode 6 3 2 2 A3 11 17 A4R 81 2 x 14 A5R 81 2 x 11R A4 51 2 x 81 2R B4 11 x 81 2 B5R U Folio U Paper select key selects a mode Figure 3 2 1 2 Simulation list Section Simulation contents 1AF Default Exiting simulation mode Copying without paper Enabling ADF operation without originals Checking ADF operation Numeric key Operation 0 Feeding originals continuously 1 Feeding a single original 2 Ejecting originals Setting shipping defaults Paper feed Turning the drive motor on conveying Checking switch operation Paper size indicator Switch name 11 x 17 Registration switch A4R 81 2 x 14 Eject switch A5R 81 2 x 11R Home position switch A4 51 2 81 2 Lens home position switch 4 11 x 81 2 Toner level sensor Checking solenoid operation Mode Solenoid 1 Bypass solenoid Paper feed solenoid Registration solenoid 3 2 3 1AF Section Simulation contents Default Paper feed conveying cont Setting the folio size 330 mm Checking for skewed paper feed with test copies Adjusting leading edge registration timing Adjusting ADF leading edge registration timing Adjusting the leading edge margin Adjusting the side eras
82. not turn at full Speed Broken ozone ex haust fan motor Coil Check for continuity across the coil If none replace the ozone exhaust fan motor Poor contact in the ozone exhaust fan motor connector terminals Check for continuity across the connector terminals If none replace them Defective main PCB Run simulation 10 and check if CN11 13 on the main PCB goes low about 12 V at half speed If not replace the main PCB 9 The paper feed solenoid does not op erate Broken paper feed solenoid coil Check for continuity across the coil If none replace the paper feed solenoid Poor contact in the paper feed sole noid connector terminals Check for continuity across the connector terminals If none replace them Defective main PCB Run simulation 12 and check if CN2 4 on the main PCB goes low If not replace the main PCB 10 The bypass solenoid does not operate Broken bypass solenoid coil Check for continuity across the coil If none replace the bypass solenoid Poor contact in the bypass solenoid connector termi nals Check for continuity across the connector terminals If none replace them Defective main PCB Run simulation 12 and check if CN2 2 on the main PCB goes low If not replace the main PCB 11 The registra tion solenoid does not op erate 3 6 32 Broken registration solenoid coil Check for continuity
83. on the scanner rail Check visually and remove if any 3 Deformed press roller Check visually and replace see page 3 3 62 4 Drive system problem 11 The leading edge of the image is con sistently misaligned with the original Causes Check the gears and belts Grease the gears or readjust the belt tension if necessary Causes 1 Misadjusted leading edge registration Check procedures corrective measures 1 Misadjusted leading edge registration 3 6 10 Readjust the leading edge registration timing see page 3 3 12 12 The leading edge of the image is spo radically misaligned with the original Causes 1AF Causes 1 Registration solenoid installed or operating incorrectly Check procedures corrective measures 1 Registration solenoid installed or operating incorrectly 13 Paper creases Causes Check the installation position and operation of the registration solenoid Causes 1 Paper curled 2 Paper damp 3 Defective fixing pressure springs Check procedures corrective measures 1 Paper curled Check the paper storage conditions 2 Paper damp Check the paper storage conditions 3 Defective fixing pressure springs Replace the fixing pressure springs 3 6 11 1AF 14 Offset occurs Causes 1 Cleaning blade installed in the wrong position 2 Defective cleaning b
84. other control signals Other circuitry components of the main PCB are the fixing unit abnormally high temperature shorted thermistor detection circuit toner feed motor drive circuit scanner motor drive circuit and reset circuit 2 3 3 1AF 1 Fixing unit abnormally high temperature shorted thermistor detection circuit Figure 2 3 3 Fixing unit abnormally high temperature shorted thermistor detection circuit The fixing unit abnormally high temperature shorted thermistor detection circuit forces the fixing heater control signal H REM off if the fixing temperature reaches an abnormally high level This hardware safety function backs up the software controlled shorted fixing unit thermistor abnormally high temperature detection feature self diagnostic code C64 Asthe fixing temperature rises the resistance ofthe fixing unitthermistor FTH decreases This increases the voltage at pin 6 of comparator IC20 When the voltage exceeds the abnormality detection level set by resistors R96 and R98 at pin 5 of comparator IC20 the output at pin 7 goes low turning transistor off this shuts off the fixing heater control signal REM output from pin of the CPU IC11 forcing off the fixing heater H controlled via the composite PCB CPCB 2 3 4 1AF 2 Toner feed motor drive circuit 24 V 2 IN1 Pin 3 IN2 24V Output voltage waveform IC 14 input voltage waveform across CN11 5 and CN1
85. output BL scan sink BL DIG 2 output BL scan sink BL DIG 1 output BL scan sink BL DIG 0 output BL LED lighting source BL SEG 2 output BL LED lighting source BL SEG 1 output BL LED lighting source BL SEG 0 output 3 6 23 1AF Terminals CN Voltage Remarks 9 12 4 4 9 13 4 4 10 1 4 8 10 2 4 8 11 1 11 2 11 3 11 2 11 4 11 2 11 5 11 6 11 7 4 4 11 8 4 4 11 9 4 4 11 10 4 4 11 12 4 3 11 13 4 3 11 14 4 3 11 15 4 3 11 16 4 3 11 17 4 3 11 18 4 3 11 19 4 3 11 20 11 21 11 22 11 23 11 25 4 4 11 26 4 4 12 1 12 3 12 2 12 3 12 4 4 4 12 5 4 4 12 7 12 6 12 8 12 6 12 9 12 6 18 1 4 3 13 2 4 3 14 1 4 3 14 2 4 3 15 1 4 4 3 6 24 5V DC 24 V DC 0 24 V DC 24 V DC 24 0 V AC 0 5 V DC pulse 0 5 V DC pulse 0 5 V DC pulse 0 5 V DC pulse 24 V DC 0 13 3 24 V DC 24 V DC 0 13 4 24 V DC 24 V DC 0 24 V DC 24 V DC 0 24 V DC 0 5 V DC 0 5 V DC 5V DC 1 2 V DC 0 5 V DC 0 5 V DC pulse 0 5 V DC pulse 0 5 V DC 0 5 V DC 0 5 V DC 24V DC 0 24 V DC 24 V DC 0 24 V DC 0 3 6 V DC DTH detection voltage input 5 V DC supply for DTH output 24 V DC supply for MSW output MSW off on output TNS control voltage output TNS detection voltage input 24 V DC supply for TNS output on off output TCDSW scan sink DIG 6 output TCDSW on off input TLDS scan sink DIG 7 output TLDS on off input
86. refitting the bypass lower pulley Clean or replace the bypass lower pulley as follows Procedure 1 Detach the original holder Pull out the paper drawer Remove the bypass cover Open the front cover and take the image formation unit out of the copier Place the copier on its left side as shown below Remove the screw and the limiter mount Limiter mount Figure 3 3 4 7 Remove the E ring and pull the bypass lower pulley off the limiter shaft 9 E ring Limiter shaft Bypass lower pulley Torque limiter Figure 3 3 5 Removing the bypass lower pulley 8 Clean or replace the bypass lower pulley 9 Refit all the removed parts 3 3 5 1AF 3 Detaching and refitting the bypass upper pulley Clean or replace the bypass upper pulley as follows Procedure 1 Remove the right lower cover 2 Disengage the stopper hook from the opening in the bypass paper feed shaft by lifting the shaft slightly and remove the stopper and bushing from the shaft Do not lift the bypass paper feed shaft too far 3 Remove the screw and bypass upper pulley from the bypass paper feed shaft Clean or replace the bypass upper pulley 5 Refit all the removed parts A Bypass paper feed shaft Bypass upper pulley Bushing Q Stopper Hook Screw Figure 3 3 6 Detaching the
87. rotating forward for 1687 pulses the scanner motor SM reverses to return the scanner to the home position At the same time the halogen lamp HL turns off 10 pulses after the home position switch HPSW has turned on the scanner motor SM turns off and the scanner stops 1 3 17 1AF Exposure control for manual exposure and photo modes The halogen lamp light intensity for manual exposure and photo modes is calculated from the data obtained by running simulation 24 Light intensity value Manual exposure mode _ Photo mode Drum potential 850 V DC Drum potential 680 V DC Drum potential 680 V DC 1 2 1 3 1 4 1 5 1 6 1 7 1 2 3 4 5 6 7 74 7 27 8 7 4 7 5 7 6 Exposure scale Exp Figure 1 3 14 Exposure gradient setting Exposure control for manual exposure mode The gradient between Exp 1 2 and Exp 7 is determined from the halogen lamp light intensity values for Exp 1 Exp 4 and Exp 7 setin simulation 24 For exposure settings Exp 7 1 and above the drum potential is set 170 V below the normal level and the light intensity is reduced since the intensity at such high exposure levels cannot be increased by simply increasing the halogen lamp control voltage The amount of exposure for the high settings between Exp 7 1 and Exp 7 6 is determined by the halogen lamp light intensity value for Exp 7 1 set in simulation 24 and the gradient between Exp 4 and Exp 7 Exposure cont
88. shown in Figure 1 3 38 Heat roller Press roller Heat roller separation claws Z amp Press roller separation claws Figure 1 3 38 Paper separation 1 3 42 ELECTRICAL SECTION 1AF CONTENTS 2 1 Electrical Parts Layout 2 1 1 Electrical amp 5 1 2 1 1 1AF 2 1 1 Electrical parts layout Machine front ZZ Machine inside L Machine rear Figure 2 1 1 Layout of electrical parts PCBs 1 Main PCB Controls the other PCBs and electrical components 2 Composite PCB CPCB Contains safety switch 1 and noise filter generates 24 V and 5 V DC and controls the halogen lamp and fixing heater 3 High voltage transformer PCB HVTPCB Performs main charging generates developing bias and high voltage for transfer and separation charging 4 Humidity sensor Detects absolute humidity 5 Operation unit PCB OPCB Consists of operation keys and display LEDs 2 1 1 1AF 10 11 12 13 Machine front ZZ Machine inside EI Machine rear Figure 2 1 2 Layout of electrical parts switches and sensors Main switch MSW Safety swi
89. tation control circuit in the drive motor Replace the drive motor Poor contact in the con nector termi nals Check for continuity across the connector terminals If none replace them Defective drive trans mission sys tem Check if the rollers and gears rotate smoothly If not grease the bushings and gears Check for broken gears and replace if any Defective main PCB Replace the main PCB and check the operation Defective safety switch 2 Check for continuity across the contacts If none when on replace safety switch 2 Contents 1AF Remarks Causes Check procedures corrective measures Scanner motor problem The home position switch does not turn on within 10 s after the scanner has started to return at low Speed The home position switch does not turn off within 1 s after the start of forward rotation The home position switch does not turn on within 3 s after the start of reverse rotation Broken scan ner motor Coil Check for continuity across the scanner motor coil If none replace the scanner motor Defective home position Switch Check if CN7 2 on the main PCB goes high when the home position switch is on and goes low when the Switch is off If not replace the home position switch Poor contact in the home position Switch con nector termi nals Check for continuity across the home position switch conne
90. the stop clear key 3 2 22 Description 1AF Remarks Checking clearing service call records 1 Enter 73 with the numeric keys 2 Press the print key Mode Copy quantity display 1 Service call detection records 1 to 10 2 Service call code 3 Maintenance count 100 000s and 10 000s digits 0 to 99 Maintenance count 1 000s and 100s digits 0 to 99 Maintenance count 10s and 1s digits 0 to 99 To check the service call records 3 In mode 1 select the service call record to be checked by changing the value with the exposure adjustment keys The larger the value the older the record Select mode 2 with paper select key to check the service call code Select modes 3 4 and 5 in order with the paper select key to check the maintenance count when the service call code was detected To clear the service call records 6 Press the all clear reset key All the service call records are cleared 7 Press the stop clear key Display the codes and main tenance counts of the last ten service call de tections 3 2 23 1AF Description Remarks 3 2 24 Checking clearing jam counts Enter 74 with the numeric keys Press the print key The current count appears on the copy quantity display Select the mode to be displayed with the paper se lect key Mode Jam code Jam location Setting range 1 J30 Registration section 2
91. to fix the charger wires Cut off the excess wire under each retainer pin so less than 2 mm protrudes Refit all the removed parts Charger wire retainer pin Trim Charger spring Less than 2 mm 9 5to 11 mm Less than 2 mm 3 Pin E I Si CO QJ om I An D Eee 7 Transfer charger front housing Transfer charger rear housing Figure 3 3 49 Replacing the charger wires 3 3 51 1AF 2 Setting transfer voltage reference Perform the following steps after replacing the high voltage transformer PCB or main PCB or if a transfer error occurs at extremely high or low humidity Procedure Enter simulation mode Enter 31 with the numeric keys Press the print key Press the print key The new setting is stored Change the setting with the zoom up down keys s the copy image too light Setting range 0 to 7 Reference 5 approx 5 0 kV DC Changing the value by one changes the voltage by 0 1 kV DC reference Press the stop clear key Exit simulation mode End 3 3 52 1AF 3 Setting separation shift bias voltage reference Perform the following steps if paper jams frequently in the separation section due to a separation error or thin paper fails to separate or creases Required adjustment tool
92. 0 PARTITION FIXING THERMISTOR 20 34920170 FULCRUM FIN FIXING 21 34920180 GROUND PLATE HEAT ROLLER 22 34920190 GROUND PLATE FIXING UNIT 23 34920200 GEAR 30 DLE EJECT 24 34920210 PRESSING PLATE FIXING 25 34920220 SPRING PRESSURE 26 34920290 MOUNT PRESS ROLLER SEPARATION CLAW 27 34920300 SEPARATION CLAW PRESS ROLLER 28 34920310 THERMOSTAT 140 FIXING 29 34920320 THERMOSTAT 150 FIXING 30 34920330 STATIC ELIMINATOR EJECT 31 34920340 GUIDE FILM EJECT WIRE 32 34920350 FRONT MOUNT HEATER 33 34920360 REARMOUNT HEATER 34 34921080 JUNCTION WIRING THERMOSTAT 35 34927290 JUNCTION WIRING FIXING HEATER 36 60820010 EJECT PULLEY 37 66068450 PRESS ROLLER PFA 72907110 SPRING PAPER GUIDE PULLEY 473800080 BLADE HEAT ROLLER 15720060 BUSHING HEAT ROLLER 1 1 6 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 4 1 4 1 1 1 i 1 1 1 1 4 1 4 1 2 62207620 68305090 34920370 34920380 SHIFT CAUTION LABEL HIGH TEMPERATURE FRONT SPACER FIXING REAR SPACER FIXING 349 Desc 75720080 SHAFT SEPARATION CLAW 1 75720240 SPRING SEPARATION CLAW 8 77020010 BEARING PRESS ROLLER 2 49028112 BUSHING 8 LOWER REG ROLLER 2 34905070 LABEL FIXING JAM 1 34921010 LOWER ROLLER EJECT 1 34921020 SWITCH EJECT i 34921030 MOUNTEJECT SWITCH 1 34921040 BASEEJECT 1 34921050 REINFORCEMENT EJEC
93. 00 TONER MOTOR 72114870 V RING 6 DIA 279418410 GEAR 18 SPIRAL 34915150 RIGHT LID MHOPPER 76727010 ORIGINAL SIZE SWITCH 2107120 BINDING BAND 56 130 434015200 SPRING HOPPER CAM 34915290 PROTECTING PLATE HOPPER 34915280 GROUND PLATE H TONER MOTOR 34915180 LOWER COVER HOPPER 29705100 CAUTION LABEL DRUM Do 1 1 2 1 1 1 1 1 1 1 1 1 1 1 2 1 1 2 1 1 1 1 1 2 1 1 1 1 2 1 2 2 1 2 2 1 1 1 1 1 Parts with are component parts or sub assemblies of the assembly appearing immediately above them 23 FIG 12 FIXING SECTION Dy YAT 51 gt b 2 29577 A 4 d 9 E WP lU FIG 12 FIXING SECTION Part No Description i 34993090 PARTS FIXING ASS Y 120 5 2 M2104260 EDGING EDS 0607 ULKITAGAWA 3 28120470 SEPARATION CLAWT 4 33920500 RETAINING PIN FIXING GUIDE 5 34920010 HOUSING FIXING 6 34920020 BASE FIXING 7 34920030 FRONT FRAME FIXING 8 34920040 REAR FRAME FIXING 9 34920050 COVER FIXING 10 34993200 PARTS ROLLER HEAT SP 11 34920070 GEAR 49 HEAT ROLLER 12 34920080 THERMISTER FIXING 13 34920090 UPPER GUIDE FIXING 14 4920100 FRONT GUIDE FIXING 15 54993210 PARTS HEATER 120 FIXING SP 16 34920130 FRONT LEVER FIXING PRESSURE 17 34920140 REAR LEVER FIXING PRESSURE 18 34920150 STATIC ELIMINATOR EJECT ROLLER 19 3492016
94. 1 3 8 charging section 1 3 10 1AF Figure 1 3 9 Main charger CD Main charger front housing Main charger front lid 2 Main charger rear housing Main charger rear lid 3 Main charger shield 9 Charger spring 4 Tungsten wire Charger terminal 5 Main charger grid Charger wire retainer pin 6 Grid tension plate 42 Film 4VPC gt CPCB ont 21 MOREM gt 7 MC CN1 27 fe ALARM RID CONT c EX CN1 20 DB REM ewig HVTPCB MPCB Figure 1 3 10 charging section block diagram 1 3 11 1AF Scanner return start Print key Forward Timing chart 1 3 3 charging 300 ms after the print key is pressed all the blank lamps BL turn on 50 ms after the all blank lamps BL have turned on main charging starts As soon as the scanner starts to return main charging ends 1 3 12 1AF Surface potential correction control The drum surface potential is corrected for the external temperature and humidity If the external temperature is 24 C 75 2 F or less and the absolute humidity exceeds 25 0 g m3 the drum surface potential is corrected as in the table bellow The external temperature and relative humidity are detected by the external temperature thermistor ETTH and humidity sensor HUMSENS and the absolute humidity is calculated from these values The su
95. 1 6 Figure 2 3 4 Toner feed motor drive circuit The toner feed motor drive circuit generates a pseudo AC supply to run the toner feed motor TFM an AC motor Pulse signals output from the CPU IC11 to pins 2 and 3 of driver IC14 alternate the polarities of the 24 V DC in the transistor H bridge circuit incorporated in driver IC14 This voltage is output across CN11 5 and CN11 6 as a pseudo AC supply 2 3 5 1AF 3 Scanner motor drive circuit Figure 2 3 5 Scanner motor drive circuit The scanner motor drive circuit controls the scanner motor SM a stepping motor Driver IC2 turns the output current to the scanner motor coil on and off depending on the pulse signal from the main PCB 2 3 6 1AF 4 Reset circuit WD RES2b vec ADJ Nc S d RES1 4 GND CPU Driver IC IC14 Figure 2 3 6 Reset circuit Wheneverthere is a drop inthe 5 V DC anduntil the 5 V DC supply stabilizes when the power is turned on reset IC17 emits a reset signal to the CPU IC11 to prevent IC11 from behaving erroneously Reset IC17 is equipped with a watchdog timer function to monitor the CPU IC11 IC6 emits a constant watchdog pulse signal WD to pin 1 of reset IC17 When this pulse signal fails to be applied regularly a problem with the CPU IC11 is assumed and a reset signal is output to reset the CPU The reset signal is also applied to driver IC14 2 3 7 1AF 2 3 3 Operation unit PCB LE
96. 10100 34993010 41626652 24958260 734817160 34910010 34910110 34910030 34993130 34910050 34910180 34910080 34910190 77816110 34910150 34910160 34910170 34993910 34910060 34910120 48527200 34910020 34917140 34917150 34927031 34927210 34927220 34910090 34993080 42929503 34917030 34917070 34968280 734817160 34917010 734917040 67305310 34993900 34917050 34917060 MOUNT BLANK LAMP PARTS MAIN CHARGER ASS V SP TUNGSTEN WIRE FRONT MAIN CHARGER HOUSING ASS Y PIN CHARGER FRONT HOUSING MAIN CHARGER FRONT LID MC SHIELD MAIN CHARGER PARTS GRID SP TENSION PLATE GRID KNOB CHARGE CLEANING SEAL CLEANING LAMP SPRING CHARGE CLEANING PAD TC CLEANING HOLDER CHARGE CLEANING SHAFT CHARGE CLEANING SLIDER CHARGE CLEANING SET REAR CHARGER HOUSING HOOK MC WIRE REAR LID MC SPRING CHARGER REAR HOUSING MAIN CHARGER STOPPER TRANSFER CHARGER PLATE SPRING TRANSFER STOPPER LAMP CLEANING WIRE BLANK WIRE CLEANING LAMP MOUNT CLEANING LAMP PARTS TRANSFER CHARGER ASS Y SP TUNGSTEN WIRE 50M SHIELD TRANSFER PARTITION TRANSFER SHIELD FRONT TRANSFER CHARGER HOUSING ASS Y PIN CHARGER FRONT HOUSING TRANSFER FRONT LID TC CAUTION LABEL SET REAR TRANSFER CHATGER HOUSING REARUD TC HOOK WIRE pp A Ref 41 48527200 42 34917020 43 34917200 44 34917210 45 349172
97. 15240 34915250 34915260 34915270 34915280 34915290 34915300 34916010 34916020 34916030 34916040 34916050 34916060 34916070 34916080 34916090 GEAR 31 DEVELOPING LOWER SEAL DEVELOPING HOUSING REAR FILM DEVELOPING HOUSING HOPPER SPIRAL HOPPER PADDLE A HOPPER PADDLE B HOPPER WEIGHT B PADDLE SHAFT B PADDLE GEAR 18 SPIRAL GEAR 22 PADDLE LEFT LIDHOPPER FILM SPIRAL FILM A PADDLE RIGHT SEAL HOPPER RIGHT LID M HOPPER RIGHT COVER LID HOPPER LOWER COVER HOPPER GEAR 20 HOPPER SHAFT VIBRATION LEFT COVER HOPPER INNER LOWER LEFT SEAL HOPPER INNER SEAL LID HOPPER LEFT SEAL LID HOPPER FILM B PADDLE GROUND PLATE H TONER MOTOR PROTECTING PLATE HOPPER SPRING HOPPER CAM GUIDE REGISTRATION SHUTTER REGISTRATION REAR FRAME REGISTRATION FRONT FRAME REGISTRATION REAR PLATE SPRING REGISTRATION UNIT FRONT PLATE SPRING REGISTRATION UNIT ARM A PAPER FEED SUPPORT PLATE REGISTRATION SWITCH LOWER ROLLER REGISTRATION WEGE NS a eA sal e RE NS eA dA iX Ui me Nd cus Nb iu UN TA Mi ei d dE 5 5 5 5 5 5 3 5 5 Description Quanti USA 120V Fig No 349 1 34916100 34916110 34916140 34916150 34916160 34916170 34916180 34916190 34916200 34916210 34916230 34916240 34916250 34916270 34916280 34916290 34916300 34916310 34916320 34916330 34
98. 20 46 34917080 47 34900180 48 434910070 48 34910130 50 34910140 51 34927310 52 66227260 53 34900190 54 34917090 55 34917100 56 34917110 57 534917120 58 34907320 59 34927330 60 34900080 61 34917250 62 34926050 63 34927020 Description SPRING CHARGER REAR HOUSING TRANSFER GUIDE SEPARATION SPACER TRANSFER CHARGER LOWER FRONT SEAL TRANSFER GUIDE FILM TRANSFER MAIN CHARGER CONNECTOR ASS Y HOUSING MC TERMINAL BASE SPRING MC TERMINAL BASE PLATE SPRING MC TERMINAL BASE WIRE MAIN HIGH VOLTAGE WIRE GRID TRANSFER CHARGER CONNECTOR ASS Y HOUSING TC TERMINAL BASE PLATE SPRING CONNECTOR TRANSFER PLATE SPRING CONNECTOR SEPARATION LID TRANSFER CONNECTOR HOUSING WIRE TRANSFER HIGH VOLTAGE WIRE SEPARATION HIGH VOLTAGE UPPER FRONT TRANSFER GUIDE ASS Y LOWER FRONT GUIDE TRANSFER SEAL LIGHT SHIELD BLANK LAMP LAMPBLANK 349 1 Quantity USA 120 oma la DA DA DA TA A A cA cA cA Parts with V ponent parts or sub assembl es of the Parts with are component parts of the sub assembly FIG 7 ORIGINAL SET SECTION 4 FIG 7 ORIGINAL SET SECTION Descripti SAY escription i20V 1 34900090 ORIGINAL HOLDER ASS Y 1 2 34904100 COVER ORIGINAL 1 3 34904110 COVER PLATEN 1 4 475704290 HINGE ORIGINAL HOLDER 2 5 75704450 MAT ORIGINA
99. 221 Dt m hea See a ana ua 1 2 1 1 2 2 Developer and toner 1 2 1 1 3 Mechanical Construction 1 3 1 Part names and their functions 0 0 eee centre eee 1 3 1 1 3 2 Machine cross 0 400 4004 1 nennen neat 1 3 3 1 3 3 Drive system 2 1 3 4 Mechanical 1 3 6 ELECTRICAL SECTION 2 1 Electrical Parts Layout 2 1 1 Electrical parts 2 1 1 2 2 Detection of Paper Misfeed 2 2 1 Paper misfeed detection 2 42 4 0 2 2 1 2 2 2 Paper misfeed detection conditions 2 2 2 2 8 Operation of the PCBs 273 1 Composite PCB iiis eee nette aee d endete 2 3 1 2 8 2 Main PCB 223 3 Operation unit PGB eret cte erede teste etd 2 3 8 SET UP AND ADJUSTMENT SECTION 3 1 Installation 3 1 1 Unpacking and installation 2 20 88 3 1 1 3 1 2 Setting initial copy modes essen 3 1 16 3 1 3 Installing the key counter option 3 1 17 3 1 4 Installing the dehumidifier service part 3 1 19 3 2 Simulation 3 271 3 2 1 3 3 Assembly and Disassembly 3 3 1 Precautions for assembly and disassembly 3 3 1 3 3 2 Paper feed section
100. 3 3 14 8 3 Adjusting the trailing edge blank cut for 100 copy Make the following adjustment if the trailing edge margin on a 100 copy image is not 0 mm Important Before starting this adjustment ensure 8 1 Adjusting the leading edge registration timing has been completed Procedure Y Enter simulation mode Y Enter 59 with the numeric keys Press the select key Y print key Select mode 1 with the paper Y Place an A3 11 holder open Fig x 17 sheet on the contact glass with the original ure 3 3 18 1 A3 11 x 17 copy paper 1AF Contact glass 0 Use a scale to measure accurately Figure 3 3 18 Press the all lear reset key Y test copy Press the print key to make a Press the stop clear key Is trailing edge margin A 0 mm Exit simulation mode End Press the print key The new setting is stored Change the setting with the zoom up down keys Setting range 0 to 65 Reference 55 Increasing the value makes the margin narrower and decreasing it makes the margin wider 3 3 15 1AF 8 4 Adjusting the trailing edge blank cut for reduction copy Make the following adjustment if dirt on the original mat shows on the trailing edge of the reduction copy image Procedure A3 11 x 17 copy paper Contact glass Enter sim
101. 300 FRONT FRAME SCANNER 34929310 REAR FRAME SCANNER 34929320 UPPER LEFT REINFORCEMENT SCANNER WH 1 1 1 H 1 2 1 1 1 2 1 1 1 1 2 1 T 1 1 1 1 1 1 i 1 1 Paris with are component paris or sub assemblies of the HG IMAGE FOHMAITON SEC HON I DEVELOPING 349 1 The unit Ref No 1 is figured also in FIG 10 Parts No 100 112 cannot be replaced separately When the replacement is necessary change the unit Ref No 1 totally 18 FIG 9 co M f IMAGE FORMATION SECTION 1 DEVELOPING 34968300 34914030 34914040 34914080 34914100 34914110 34914120 34914130 34914140 34914170 34914180 34914200 34914210 34914240 34914270 34914310 33014190 34914330 34914360 34914390 34914400 34914410 534918080 372114320 72114331 75122090 134914430 434993170 349141680 434014250 34014350 34914420 45592554 34914 En Quantity Description USA 120v IMAGE FORMATION ASS Y SP LEFT SPIRAL DEVELOPING RIGHT SPIRAL DEVELOPING RAIL LID DEVELOPING FORMATION HANDLE SPRING IMAGE FORMATION HANDLE MOUNT BASE HANDLE STOPPER DEVELOPING UPPERLID DEVELOPING UPPER SEAL LID FRONT LID DEVELOPING GEAR 19 IDLE DEVELOPING GEAR 17 MAGNET ROLLER SEAL DEVELOPING UPPER SEAL DEVELOPING FRONT SEAL LID TONER SENSOR LEFT SEAL LID
102. 4 34993280 PARTS COMPOSITE CIRCUIT PCB 120 SP 34993300 PARTS HIGH VOLTAGE TRANSFORMER PCB SP 34993370 PARTS BLADE 23 GLEANING SP 34993900 SET REAR TRANSFER CHATGER HOUSING 34993910 SET REAR CHARGER HOUSING 41529210 SOCKET ASS Y KEY COUNTER 41626652 TUNGSTEN WIRE 42929503 TUNGSTEN WIRE 50M 43826700 0121033 45592554 BEARING 688ADD 45727313 IDLE GEAR FIXING UNIT 48527200 SPRING CHARGER 48928105 IDLEPULLEY 15 49028112 BUSHING 8 LOWER REG ROLLER Quantity Part No Description P Fig No Description 34927230 WIRE SOLENOID 1 14 34968160 BELTLENS DRIVE 8 34927240 GROUND WIRE REGISTRATION 1 5 34968170 PULLEYTENSION 8 34927250 GROUND WIRE BYPASS LIFT 1 4 34968180 LAMP 100 8 34927280 JUNCTION WIRING THERMOSTAT 1 12 34968200 MIRROR 1 8 34927290 JUNCTION WIRING FIXING HEATER 1 12 34968210 2 8 34927310 WIRE MAIN HIGH VOLTAGE 1 6 34968220 MIRROR 3 8 34927320 WIRE TRANSFER HIGH VOLTAGE 1 6 34968230 MIRROR4 8 34927330 WIRE SEPARATION HIGH VOLTAGE 1 6 34968240 MIRRORS 8 34928070 AESENSORPCB 1 8 34968250 MIRROR 6 8 34929300 FRONT FRAME SCANNER 1 8 34968260 FRONT MAIN CHARGER HOUSING ASS Y 6 34928310 REARFRAME SCANNER 1 8 34968280 FRONT TRANSFER CHARGER HOUSING ASS Y 8 34929320 UPPER LEFT REINFORCEMENT SCANNER 1 8 34968300 IMAGE FORMATION ASS Y SP 9 34960010 MOUNT BASE ORIGINAL SIZE INDICATOR 1 15 34993010 PARTS MAIN CHARGER ASS Y SP 6 34960020 MOUNT ORIGINAL SIZE INDICATO
103. 4914350 34914360 34914380 34914390 34914400 HOUSING MC TERMINAL BASE SEAL CLEANING LAMP MOUNT CLEANING LAMP MOUNT BLANK LAMP FRONT LID MC REAR LID MC SPRING MC TERMINAL BASE PLATE SPRING TERMINAL BASE HOLDER CHARGE CLEANING SHAFT CHARGE CLEANING SLIDER CHARGE CLEANING KNOB CHARGE CLEANING SPRING CHARGE CLEANING CONTACT GLASS MOUNT BASE ORIGINAL HOLDER SPACER MOUNT BASE ORIGINAL ORIGINAL SIZE INDICATOR ORIGINAL INCH LEFT SPIRAL DEVELOPING RIGHT SPIRAL DEVELOPING RAIL LID DEVELOPING SHAFTIMAGE FORMATION HANDLE SPRING IMAGE FORMATION HANDLE MOUNT BA E HANDLE STOPPER DEVELOPING UPPER LID DEVELOPING FILM DEVELOPING UPPER SEAL LID FRONTLID DEVELOPING GEAR 19 IDLE DEVELOPING GEAR 17 MAGNET ROLLER SEAL DEVELOPING SEAL COVER DOCTOR BLADE UPPER SEAL DEVELOPING FRONT SEAL LID LEFT SEAL LID LOWER SEAL DEVELOPING FRONT BUSHING SPIRAL STOPPER MAGE FORMATION LEFT FILM DEVELOPING SPIRAL GEAR 28 DEVELOPING Quantity USA Fig No 120 349 1 XO tO XD D D D o D D o iO 4D o ODO 1 2 4 4 gt 0 0 25 Part No Description Quantity USA 120V 34914410 34914420 34914430 34915010 34915020 34915030 34915040 34915050 34915060 34915070 34915080 34915090 34915110 34915120 34915130 34915140 34915150 34915160 34915180 34915190 34915200 34915210 34915220 34915230 349
104. 5 01 6 y d ot E 0 6 03518 Tod E 12 zie 2938 18 z x Wau 61 6 i S 5 2 5 d lt E LG 2 T N e ive N 1AF 3 7 10
105. 5 A white line appears longitudinally See page 3 6 7 8 One side of the copy image is darker than the other See page 3 6 9 1AF 3 Image is too light See page 3 6 6 6 A black line appears longitudinally See page 3 6 7 9 Black dots appear on the image See page 3 6 9 3 6 1 1AF 10 Image is blurred See page 3 6 10 13 Paper creases e See page 3 6 11 16 Image is partly missing See page 3 6 13 3 6 2 11 The leading edge of the image is consist ently misaligned with the original See page 3 6 10 14 Offset occurs See page 3 6 12 17 Fixing is poor X See page 3 6 14 12 The leading edge of the image is sporadi cally misaligned with the original See page 3 6 11 15 Black lines appear on both sides of the image in reduction copies See page 3 6 13 18 Image is out of focus See page 3 6 14 1AF 19 Image is not square 20 Image is not square 21 Image is partially longitudinally laterally missing laterally A See page 3 6 14 See page 3 6 15 See page 3 6 15 3 6 3 1AF 1 No image entirely white Causes Causes 1 No original present 2 No main charging 3 No transf
106. 50 60 Hz 6 3 120 V AC 60 Hz 11 6A 1450 W 220 240 V AC 1350 W 120 V AC 595 W x 590 D x 375 H mm 237 16 W x 231 4 D x 143 4 Approx 39 kg 66 Ibs 1120 W x 590 D mm 441 8 W x 231 4 D Copy tray Key counter ADF 1AF CONTENTS 1 2 Handling Precautions DI AUT Aa 1 2 1 1 2 2 Developer and toner sese 1 2 1 1AF 1 2 1 Drum Note the following when handling or storing the drum When removing the image formation unit never expose the drum surface to strong direct light e Keep the drum at an ambient temperature between 20 C 4 F and 40 C 104 F and at a relative humidity not higher than 85 RH Avoid abrupt changes in temperature and humidity e Avoid exposure to any substance which is harmful to or may affect the quality of the drum Do not touch the drum surface with any object Should it be touched by hands or stained with oil clean it If the machine is left open for more than 5 minutes for maintenance remove the drum and store it in the drum storage bag P N 78369020 1 2 2 Developer and toner Store the developer and toner in a cool dark place Avoid direct light high humidity and temperature 1 2 1 1AF CONTENTS 1 3 Mechanical Construction 1 3 1 Part names and their functions 2 1 3 1 1 3 2 Machine cross section 4 4 1 3 3 Drive system 1 3
107. 6 10 11 The leading edge of the image is consistently misaligned with theoria nsien otea doeet e Ded c ters 3 6 10 12 The leading edge of the image is sporadically misaligned with the originial c ort oec c rece dde 3 6 11 13 Paper creases 9 6 11 14 ERE redit tene 3 6 12 15 Black lines appear on both sides of the image in reduction CODIGOS rete Mete 3 6 13 16 Image is partly 0 3 6 13 t7 Fixing pere pee n neret 3 6 14 18 Image is out of focus 3 6 14 19 Image is not square longitudinally 3 6 14 20 Image is not square laterally 3 6 15 21 Image is partially missing laterally 3 6 15 3 6 2 Paper misfeads 4 vel e eee dede eop iin 3 6 16 1 A paper jam in the registration section is detected as soon as the main switch is turned on J30 3 6 16 2 A paper jam in the eject section is detected as soon as the main switch is turned on J50 3 6 16 3 A paper jam in the paper drawer is detected during copying PE appears hi n bids i 3 6 16 4 A paper jam on the bypass table is detected during copying dete dd 3 6 17 5 A paper jam in the paper conveying or fixing section is
108. 66 666 6 66 66 tate S maol 5 m UE 9 AS E 38 902 9555 221 30 20 Su Ho Su 1820 ER BER 2 gs zulzs Be a a d o l HE Es Fal 8 8 x x Sl 55555555 SR 25552509 8 m M gt 5 5 E 815 Suelos elal lo 925 Wau 809 ze oris 145 581061200600 LlLl g na omo 7 15 TT 7 me g Nouris 5 58 amp iNOS mje AP 19 5 9 AD 521 2 2 AO 92 15 WV LAH 3 15 1o NOLLdO N e wo N CONTENTS FIG 1 EXTERIOR COVERS 2 FIG 10 IMAGE FORMATION SECTION il FIG 2 4 CLEANING ean 20 FIG 3 6 FIG 11 TONER HOPPER 22 FIG 4 PAPER FEED IN SECTION 8 26 12 5 24 FIG 5 PAPER CONVEYING 10 FIG 13 DRIVING COOLING SECTION 26 FIG 6 CHARGING 12 FIG 14 ELECTRICAL COMPONENTS 28 FIG 7 ORIGINAL SET SECTION 14 FiG 15 OPTION 30 FiG 8 OPTICAL SECTION 16 FIG 16 ACCESSORY
109. 916340 34916350 34916360 34916370 34916380 34916390 34916420 34916460 34916470 34916480 34916490 34916500 34916510 34917010 34917020 34917030 34917040 34917050 34917050 34917070 UPPER PULLEY REGISTRATION LOWER FRONT ROLLER TRANSFER REAR ARM REGISTRATION ROLLER SHAFT REGISTRATION FULCRUM SHAFTJAM FULCRUM SPRING PAPER FEED LEVER JAM FULCRUM HOLDER REGISTRATION PULLEY HOLOER SHAFT HOLDER SHAFT ROLLER ARM B PAPER FEED ARM REGISTRATION PULLEY 15 GEAR 15 30 GEAR 25 REAR PULLEY 15 PULLEY 20 BUSHING 5 BELT REGISTRATION BELT FEED SPRING PAPER FEED SOLENOID GUIDE CONVEYING PIN REGISTRATION COLLAR REGISTRATION PLATE SPRING REGISTRATION PULLEY LOWER ARM TRANSFER SPONGE PAPER FEED SOLENOID SPONGE REGISTRATION SOLENOID COLLAR PAPER FEED GEAR SEAL REGISTRATION GUIDE SPRING BYPASS SPRING LEVER FRONT HOUSING TRANSFER REAR HOUSING TRANSFER SHIELD TRANSFER FRONT LID TC REAR LID TC HOOK WIRE PARTITION TRANSFER SHIELD ee Oc CO CS D o 5 i cn Qn Qn Qn tn Cn cn qx e 01 Part No Description 34917080 j GUIDE FILM TRANSFER 34917090 HOUSING TC TERMINAL BASE 34917100 PLATE SPRING CONNECTOR TRANSFER 34917110 PLATE SPRING CONNECTOR SEPARATION 34917120 CONNECTOR HOUSING 34917130 SPRING TRANSFER LIFT 34917140 STOPPER TRANSFER CHARGER 34917150 PLATE SPRING TRANSFER STOPPER 34917160
110. 920330 34920340 34920350 34920360 34820370 34920380 34921010 34921020 34921030 34921040 34921050 34921060 34921070 34921080 34922010 34922020 34922030 34922040 34922050 mee Quantity Description USA 120 UPPER GUIDE FIXING FRONT GUIDE FIXING FRONT LEVER FIXING PRESSURE REAR LEVER FIXING PRESSURE STATIC ELIMINATOR EJECT ROLLER PARTITION FIXING THERMISTOR FULCRUM PIN FIXING GROUND PLATE HEAT ROLLER GROUND PLATE FIXING UNIT GEAR 30 IDLE EJECT PRESSING PLATE FIXING SPRING PRESSURE POSITIONING PLATE FIXING GEAR 22 FIXING INPUT FRONT BEARING FIXING DRIVE REAR BEARING FIXING DRIVE LOWER GROUND PLATE FIXING MOUNT PRESS ROLLER SEPARATION CLAW SEPARATION CLAW PRESS ROLLER THERMOSTAT 140 FIXING THERMOSTAT 150 FIXING STATIC ELIMINATOR EJECT GUIDE FILM EJECT WIRE FRONT MOUNT HEATER REAR MOUNT HEATER FRONT SPACER FIXING REAR SPACER FIXING LOWER ROLLER EJECT SWITCH EJECT MOUNT EJECT SWITCH BASE EJECT REINFOR EMENT EJECT BASE GEAR 22 BASE EJECT TRAY FULCRUM PIN EJECT REINFORCEMENT ORIVE FRAME PAPER FEED POSITIONING PLATE DRUM COUPLING ORUM SHAFT COUPLING 349 1 Guantit 349 1 Par ES Fig N Descripti NM Fig N EUR YA No escription ig No art No escription USA ig No 13 34922060 REARBUSHING DRUM 34922530 COLLAR PULLEY 34822490 MOUNT POWER SOURCE 34922500 MOUNT INLET 120 34922520 COUPLER PAPER FEEO
111. 9806810 BUSHING 6 REGISTRATION 5 2 4 5 10 34905080 LABEL CONVEYING JAM 1 1 33418270 PULLEYSEPARATION CLAW 2 10 34905090 LABEL PAPER SET 1 2 33906990 SWITCH BYPASS SIZE DETECTION 1 4 34906010 UPPER PULLEY BYPASS 1 4 33907100 RACK CASSETTE 2 4 34906020 PULLEY LIMITER 1 2 33907110 TERMINAL PAPER SIZE PCB 1 4 34906030 TORQUE LIMITER BYPASS 1 2 33914190 TONER SENSOR 1 9 34906040 LOWER GUIDE BYPASS 1 4 33920500 RETAINING PIN FIXING GUIDE 2 12 34806050 WORKPLATE BYPASS LIFT 1 4 33928110 SIZE DETECTION PCB 1 4 34906060 MOUNTLIMITER 1 2 34806150 STOPPER 5 2 5 34906070 SHAFT BYPASS PAPER FEED 1 4 34817160 PIN CHARGER 3 6 6 34906080 SHAFT LIMITER 1 2 34900080 UPPER FRONT TRANSFER GUIDE ASS Y 1 6 34906090 LEVER LIMITER 1 2 34900090 ORIGINAL HOLDER ASS Y 1 7 34905100 COLLAR POSITIONING 1 2 34900120 CASSETTE ASS Y 1 3 34906110 SPRING LIMITER SUPPORT 1 2 34900180 MAIN CHARGER CONNECTOR ASS Y 1 6 34906120 LEVER BYPASS LIFT 1 4 34900190 TRANSFER CHARGER CONNECTOR ASS Y 1 6 34906130 SPRING BYPASS LIFT 1 13 34901060 PCB OPERATION UNIT ASS Y 1 14 34906140 GEAR 38 PAPER FEED 2 13 34902020 FRONT REINFORCEMENT BASE 1 2 34906150 INNER BUSHING PAPER FEED 5 4 34902030 REAR REINFORCEMENT BASE 1 2 34906160 OUTER BUSHING PAPER FEED 5 4 34902050 8OLTLEVEL 2 2 34906170 FILM BYPASS GUIDE 4 4 34904010 FRONTCOVER 1 1 34906180 SPRINGLIFT AUXILIARY 1 4 34904020 RIGHT FAONT COVER 1 1 34906190 FILM PAPER GUIDE 1 4 34904030 UPPER RIGHT
112. BL DIGO TC ONTIS ioe 5 pu DIGO z R28 SSR REM 18 3 lt p 11 8 1610 6 R59 CENID SEG 2 H ALARM 2017 c10 R27 THOT SEG 1 18 1 lt 5 R26 HREM T R81 Cog 21 16 10 CN9 11 SEG 0 LM CONES 1 IL 1 3 2615 x E LM 1 CCN5 10 18 TIER MSW REM LM 92 CCN5 11 15 15115 CNS PESOL 5 LM CCNS 12 8 o 5 6 o CN14 2 PSOL 2 TC vcch RARUS CN127 BYPPSW 5102 273 8 BOUM A et BYPPSW SIG1 MN CN12 9 BYPPSW SIGO ES 12 2 R54 AR ALS CNET ssw2 SMA FT SM A C CN8 3 Ros R93 Ale SM B CCNB 4 8 w 1020 2 6 SM zj a 174 9 P lt 3 R61 R64 CN2 8 ESW a 5 E Bis CN12 2 BYPPLSW fl R97 D5 ii R CN17 2 RSW DB REM CNT 20 E E E 816 ret MC REM CCNT21 11 R29 TC REM CGNT 22 Ue 0 1 74 SHIH KEY 0 SC REM 1 23 1 168 19 R33 2865 5 25 55 KEY 1 a LN 3 1 8 NE mas 1622 142 124 RN CNT 19 KEY 2 2 Res Eun 5 CN12 4 BYPEDSW 1 41 2A 6 6 9 CASDSW 7 m la R32 8 TCDSW 8 8 3 14 TLDS 4 08 i i ir vu I l I I ERO 305 0 4 gt T S sig s lose Jost eo ets c cn 666 1022 1020 108 sic SG 933 NO CONNECT 104 RES CN1 28 9 105 2 10 9 10 1016 g C N2 113 qu CN2 12 58 1 18 CN66 sale 8 12 10 1012 110
113. BLACK 34960070 BASE POWER SOURCE 80 34960080 UPPER COVER POWER SOURCE BOX 34960090 MIDDLE COVER POWER SOURCE BOX 34960100 WIRE 1 POWER SOURCE BOX 34960110 WIRE 2 POWER SOURCE BOX 34960120 WIRE 3 POWER SOURCE BOX 34960130 WIRE 4 POWER SOURCE BOX M2103080 BUSHING TB 2533 KITAGAWA M2108700 SPACER KGLS BRF KITAGAWA 34960010 MOUNT BASE ORIGINAL SIZE INDICATOR 34960020 MOUNT ORIGINAL SIZE INDICATOR 34960030 PLATE SPRING ORIGINAL SIZE INDICATOR 34960050 ORIGINAL SIZE INDICATOR ORIGINAL INCH 66227120 NOISEFILTER 100 M1661000 FUSE 15A 314015 66028071 POWER SOURCE PCB 100 71867000 MINIATURE FUSE 125V JET ULICSA 34960140 RESISTOR 15 0HM 34960150 RESISTOR 240 0HM 34968010 WIRE OEHUMIDIFIER 66027021 DEHUMIDIFIER HEATER 28173600 CAUTION LABEL B 66205080 LABEL FUSE Parts with gt are component parts or sub assemblies of the 349 1 32 FIG 16 ACCESSORY Ref pa No Part No Description 349 Quantity USA 120V Parts with are component parts or sub assemblies of the 349 1 Quantity USA Part No Description Fig No Part No Description SS Fig No 28120470 SEPARATION CLAWT 6 12 34904180 COVER ADF 1 1 28173600 CAUTION LABEL 5 1 15 34904190 MAGNET RELEASE 1 1 28206151 SPRING CASSETTE 2 3 34905060 LABEL SIM 1 1 29705100 CAUTION LABEL DRUM 1 fi 34905070 LABEL FIXING JAM 1 12 2
114. COVER 1 1 34906200 TABLEBYPASS 1 4 34904040 LEFT COVER 1 1 34906210 TABLE BYPASS SLIDE 1 4 34904050 LOWERRIGHT COVER 1 1 34906220 COVER SIZE DETECTION 1 4 34904060 HOLDER CONTACT GLASS 1 7 34906230 FRONT CURSOR BYFASS i 4 34904070 UPPER REAR COVER 1 1 34906240 REAR CURSOR BYPASS 1 4 34904080 REARCOVER 1 1 34906250 SUPPORTPLATE BYPASS WIRE i 4 34904090 COVER CASSETTE 1 3 34906260 SPRING WIRE SUPPORT 1 4 34904100 COVER ORIGINAL 1 7 34906270 ADJUSTING PLATE BYPASS 1 4 34904110 COVER PLATEN 1 7 34906290 STOPPER PAPER SET 1 4 34904120 INNER COVER CASSETTE 1 2 34906300 SLIDER BYPASS PAPER FEED 1 4 34904130 HINGE RELEASE 2 1 34907010 CASSETTE PAPER FEED 1 3 34904140 COVER COUNTER 1 4 34907020 FRONT CURSOR CASSETTE 1 3 34904150 STOPPER MAGNET 1 1 34907030 REAR CURSOR CASSETTE 1 3 34904160 INNER FRONT COVER 1 1 34907040 FRONT CLAW CASSETTE 1 3 34904170 STOPPER CASSETTE 1 3 34907050 REAR CLAW CASSETTE 1 3 34 34907060 34907070 34907080 34907100 34907110 34907120 34907130 34907140 34907150 34907170 34907180 34907190 34907200 34907210 34907220 34907230 34907240 34907250 34907260 34907270 34907280 34907290 34907300 34807310 34907320 34907330 34907340 34907350 34907370 34908050 34909050 34909060 34909070 34909080 34909090 34910010 34910020 34910030 34910050 34910060 Description LEVER CURSOR RETAINING PIN CLAW CASSETTE BASE CASSETTE LEVER CASSETTE PRESSURE RELEASE PIN PRESSURE RELEAS
115. Contents Setting 1 Maximum No of copies 0 1 to 200 Unlimited 1 to 200 copies Copy mode 0 1 Single copies Continuous copying possible 5 Press the print key The new setting is stored 6 Press the stop clear key 3 2 31 1AF Description Remarks Selecting between auto start on off Enter 92 with the numeric keys Press the print key The current setting appears on the copy quantity display Selectthe auto start setting with the zoom up down keys Setting Contents 0 Auto start function off 1 Auto start function on 4 Press the print key 5 Press the stop clear key Setting the destination Enter 93 with the numeric keys Press the print key The current setting appears on the copy quantity display Select the destination setting with the zoom up down keys Setting Contents 0 Inch specifications 1 Metric specifications Press the print key Press the stop clear key Caution Setting the destination changes the drawer paper size setting by the user au tomatically as follows 93 Destination setting Drawer paper size setting Inch specifications 11 x 81 2 Metric specifications A4 3 2 32 Setting the optical section fan motor control See page 3 3 39 1AF CONTENTS 3 3 Assembly and Disassembly 3 3 1 Precautions for assembly and disassembly
116. DC present at CN2 7 on the main PCB check if CN2 8 on the main PCB re mains low when the eject Switch is turned on and off If it does replace the eject switch 3 A paper jam in the paper drawer is de tected during copying PF appears 3 6 16 Paper in the drawer is ex tremely curled Change the paper Check if the front claws inside the paper drawer are deformed Replace if deformed Check if the springs inside the paper drawer are deformed Remedy if deformed Check if paper feed pulleys A and B are deformed Replace if deformed Defective registration switch With 5 V DC present at CN17 1 on the main PCB check if CN17 2 on the main PCB goes low when the registration switch is turned on If not replace the registration switch Check if the paper feed sole noid malfunctions Remedy if necessary Electrical problem with the pa per feed solenoid See page 3 6 32 Problem Causes check procedures 1AF Corrective measures 4 A paper jam on the bypass table is de tected during copying PF appears Check if the bypass upper pul ley is deformed Replace if deformed Defective registration switch With 5 V DC present at CN17 1 on the main PCB check if CN17 2 on the main PCB goes low when the registration switch is turned on If not replace the registration switch The bypass solenoid malfunc tions Check and reme
117. Ds and 7 seg LEDs Source driver Sink driver Key switches Figure 2 3 7 Operation unit PCB block diagram The operation unit PCB OPCB consists of LEDs 7 segment LEDs and key switches arranged in matrix To light an LED or 7 segment LED the main PCB MPCB turns on one of the source drivers for lines SEG a to SEG h to allow current to the line on which the LED or 7 segment LED to be litis present Scan signals which go low in sequence are constantly output to the sink drivers for lines DEG 0 to DEG 7 so current flows through the LED for which the two signals are low simultaneously The status of key switches is detected by return signals KEY 0 to KEY 2 When none of the keys on the operation panel is pressed each line of return signals KEY 0 to KEY 2 is pulled high to 5 V DC by the main PCB MPCB The main PCB MPCB outputs scan signals that go low in sequence to the sink drivers for lines DEG 0 to DEG 7 so when a key is pressed the key switch conducts and the return signal goes low due to the scan signal The main PCB MPCB identifies the specific key by the location of the cross point where the line emitting the scan signal and the line with the low return signal meet 2 3 8 SET UP AND ADJUSTMENT SECTION 1AF CONTENTS 3 1 Installation 3 1 1 Unpacking and installation 3 1 1 1 Installation
118. E SPRING PRESSURE RELEASE REAR STOPPER PAPER GEAR 18 CASSETTE PULLEY CASSETTE INNER REINFORCEMENT BASE WORK PLATE PRESSURE RELEASE RIGHT MOUNT CASSETTE PULLEY PULLEY A PAPER FEED PULLEY B PAPER FEED SHAFT A CASSETTE PAPER FEED SHAFT B CASSETTE PAPER FEED MOUNT CASSETTE DETECTION LEVER CASSETTE DETECTION HOLDER PLATE SPRING CURSOR SUPPORT PLATE PULLEY PULLEY GUIDE PIN CASSETTE GUIDE CASSETTE GUIDE PAPER LABEL PAPER UPPER LIMIT REAR STOPPER B PAPER PAD A CASSETTE GUIDE 8 CASSETTE FRONT GROUND PLATE DRUM DRIVE RETAINER LEVER LEVER LOCK RAIL IMAGE FORMATION GROUND PLATE IMAGE FORMATION LOCK FRONT HOUSING MAIN CHARGER REAR HOUSING MAIN CHARGER SHIELD MAIN CHARGER TENSION PLATE GRID HOOK MC WIRE Quantity USA 120V Fig No ou A M o oL de ON x Le vA A dM A cA cA cA c C C C lO TO Gi D Co 4 4 45 aA de d amp d MO MO CO Q Q2 w 34910070 34910080 34910090 34910100 34910110 34910120 34910130 34910140 34910150 34910160 34910170 34910180 34910190 34912030 34912040 34912050 34912110 34914030 34914040 34914080 34914100 34914110 34914120 34914130 34914140 34914160 34914170 34914190 34914200 34914210 34914240 34914250 34914270 34914310 34914330 3
119. EASE SPRING THRUST MOUNT SEPARATION SEPARATION CLAW SLIDE PLATE SEPARATION CLAW LEVER SEPARATION SEPARATION CLAW SHAFT SEPARATION CLAW SEPARATION CLAW RATCHET SEPARATION PIN DEV UNTT HANDLE UPPER SPONGE CLEANING PARTS BLADE 23 CLEANING SP HOLDER SEPARATION PULLEY MOUNT SEPARATION PULLEY PULLEY SEPARATION CLAW Quantity USA 120V fO NO MO RO LA M34 AA Parts with are component parts or sub assemblies of the 349 1 22 FIG 11 TONER HOPPER SECTION FIG 11 TONER HOPPER SECTION 349 1 34993020 PARTS HOPPER ASSY N AJSP 49927306 MS MAGNET 5 49028116 BUSHING 6 CLEANING UNIT 34915010 HOUSING HOPPER 84915020 SPIRAL HOPPER 134915090 PADDLE AHOPPER 434915040 PADDLEB HOPPER 34915050 WEIGHT B PADDLE 34915060 SHAFT B PADDLE 434915070 GEAR 15 SPIRAL 34915080 GEAR 22 PADDLE 34915090 CAM HOPPER 34915110 LEFT HD HOPPER 34915120 FILM SPIRAL 34915130 FILM A PADDLE 34915140 RIGHT SEAL HOPPER 34915160 RIGHT COVER LID HOPPER 434015190 GEAR 20 HOPPER 34915200 SHAFT VIBRATION 34015210 LEFT COVER HOPPER 34915220 INNERLID HOPPER 34915230 LOWER SEALHOPPER 34915240 LEFT SEAL HOPPER 34915250 INNER SEAL LID HOPPER 34015260 LEFT SEAL LID HOPPER 34915270 FILMB PADDLE 34927050 SENSOR REMAINING DETECTION 34927150 WIRE IMAGE FORMATION UNIT 63818250 REAR BUSHING TONER DISPOSAL ROLLER 660152
120. FRONT BUSHING SPIRAL LEFT FILM DEVELOPING SPIRAL GEAR 28 DEVELOPING GEAR 31 DEVELOPING GEAR 31 THRUST PIN DEV UNIT HANDLE HANDLE BELT DEV UNIT GEAR FRONT REAR FILM DEVELOPING PARTS COVER DOCTOR BLADE SP FILM DEVELOPING SEAL COVER DOCTOR BLADE LOWER SEAL DEVELOPING LOWER SEAL DEVELOPING HOUSING BEARING 688ADD STOPPER IMAGE FORMATION DRUM FOR DC1560 USA SHAFT DRUM M ls NON M c c cA Aa de A cA ca Parts with are component parts or sub assemblies of the 349 1 FU 10 SEG HON H CLEANING 349 1 The unit Ref No 1 is figured also in FIG 9 Parts No 100 118 cannot be replaced separately When the replacement is necessary change the unit Ref No 1 totally 855 4 10f8EA 03 1 1 1 1 1 1 20 FIG 10 IMAGE FORMATION SECTION CLEANING WOON 4 m 34968300 29806810 72114331 34909050 34918310 434918050 434918090 34918120 34918130 34918170 34918180 34918200 34918240 34918250 34918250 34918270 62218011 52218020 52114320 34918340 34993370 34918350 34918360 33418270 Description IMAGE FORMATION ASS Y SP BUSHING 6 REGISTRATION HANDLE BELT DEV UNIT FRONT GROUND PLATE DRUM DRIVE MOUNT 23 BLADE SHAFT THRUST GEAR 19 DISPOSAL SPONGE CLEANING INNER SPONGE CLEANING SPACER DRUM LEVER PRESSURE REL
121. Fixing system Charge erasing system Cleaning system Functions Powersource Rated power consumption Dimensions Weight _ Floor requirements Accessories 25 hts Heat roller Heat source halogen heater 980 W Control temperature 175 C 347 F at normal ambient temperature Abnormally high temperature protection devices 140 284 and 150 C 302 F thermostats Fixing pressure 127 4 N Exposure by cleaning lamp Cleaning blade 1 Self diagnostics 2 Simulation 3 Auto clear 30 270 s in intervals of 30 s 4 Auto start 5 Auto shutoff 15 120 min in intervals of 15 min 6 Auto preheat energy saving 5 45 min in intervals of 5 min 7 Auto exposure 8 Photo mode 9 Manual magnification selection 10 Auto magnification selection by original size entry 11 Auto paper selection by original size entry 12 Auto selection when the ADF is used 220 240 V 50 60 Hz 6 3 A 1450 W 775 W x 590 D x 375 H mm 301 2 W x 231 4 D x 143 4 Approx 39 kg 85 8 Ibs 1145 W x 590 D mm 451 16 W x 231 4 D Copy tray Key counter ADF 349 1 1 2 Specifications DC 1560 Type i eed Desktop Copying system Dry indirect electrostatic system Originals
122. J40 Paper conveying and fixing sections 3 J50 Eject section 0 to 255 0 to 255 0 to 255 To clear an individual jam count 4 Select the jam code whose count should be cleared and set the value to 0 with zoom up down keys 5 Press the print key The count of the selected jam code is cleared To clear the all jam counts 6 Press the all clear reset key All the jam counts are reset to 0 7 Press the stop clear key 1AF Description Remarks Checking clearing the service call counts 1 Enter 76 with the numeric keys 2 Press the print key A service call code and its count appear alternately on the copy quantity dis play Press the paper select key to check the counts of other service call codes Code Contents C20 Drive motor problem C30 Scanner motor problem C40 Lens motor problem C50 Shorted high voltage transformer PCB C61 Broken fixing heater filament C63 Broken fixing unit thermistor wire C64 Shorted fixing unit thermistor abnormally high temperature C72 Broken drum thermistor wire C73 Shorted drum thermistor C74 Broken external temperature thermistor wire C75 Shorted external temperature thermistor C90 Copier ADF serial communication problem To clear an individual service call count 4 Select the code to be cleared with the paper select key and set the value to 0 with the zoom up down keys Press the print key The count of the selected
123. L HOLDER USA 1 6 79904140 ORIGINAL HOLDER SPACER 2 7 34904060 HOLDER CONTACT GLASS 1 8 34912030 CONTACTGLASS 1 9 34912040 MOUNT 8ASE ORIGINAL HOLDER 2 10 34912050 SPACER MOUNT BASE ORIGINAL 2 1i 34912110 ORIGINAL SIZE INDICATOR ORIGINAL INCH 1 12 34960260 GROUNDPLATE CONTACT GLASS 1 13 66012390 FRONT SIZE INDICATION PLATE INCH i 14 61712870 TAPE CONTACT GLASS 1 15 67312250 PIN ORIGINAL INDICATION PLATE 1 16 M2104210 EOGING EDS 2 2 17 M2108040 SPACER KGLS 14S 3 component parts sub assemblies of the 349 16 FIG 8 OPTICAL SECTION FIG 8 OPTICAL SECTION 349 1 Deseripti SAY escription SENP 120V 34993060 PARTS SCANNER UNIT ASS Y 100 SP 34928070 AE SENSOR 69312020 THERMAL PROTECTOR SCANNER 34968200 MIRROR 1 34968210 MIRROR2 34968220 3 34968230 MIRROR 4 24968030 SENSOR POSITION DETECTION 34968040 GLASS COVER 34968050 MOTOR SCANNER DRIVE 34968060 MOTOR LENS DRIVE 34968070 DRUM SCANNER WIRE 34968080 FRONT PULLEYSCANNER WIRE 34968090 REAR PULLEY SCANNER WIRE 34968100 FRONT PULLEY 2 3 MIRROR FRAME 34968110 REAR PULLEY 2 3 MIRROR FRAME 34968120 WIRE SCANNER 34968140 BELLSCANNER MOTOR 34958150 BELLSCCANNER DRIVE 34968160 BELLLENS DRIVE 34968170 PULLEYTENSION 34968180 LAMP 100 34968240 MIRROR 5 34968250 MIRROR6 68305110 CAUTION LABEL CONTACT GLASS 34929
124. MSENS andthe absolute humidity is calculated from these values Refer to Figure 1 3 11 Absolute humidity vs relative humidity on page 1 3 14 Absolute humidity correction value 4 87 0 5 0 8 0 10 0 15 0 20 0 25 0 30 0 Absolute humidity g m3 Figure 1 3 25 Correction based on the absolute humidity 1 3 27 1AF Computing the absolute humidity The humidity sensor HUMSENS and external temperature thermistor ETTH are located on the humidity sensor PCB HUMPCB The humidity sensor HUMSENS converts the relative humidity detected by the humidity sensing element into a voltage and sends itto the main PCB MPCB The main PCB computes the absolute humidity based on this HUMSENS signal andthe temperature ETTH signal detected by the external temperature thermistor HUMPCB ETTH 1 ETTH 2 GND Humidity sensing element 3 HUMSENS 4 GND HUMSENS 5 5V Figure 1 3 26 Absolute humidity computation block diagram 1 3 28 1AF Correction based on the drive time The toner sensor control voltage TNS CONT is decreased as the developing unit drive time the total time the drive motor DM has been on increases from execution of simulation 60 Drive time correction value V Drive time h Figure 1 3 27 Correction based on the drive time 1 3 29 1AF Toner level detection The toner level in the toner hopper is monitored by the ton
125. Metric 1 1 0 8 1 1 410 1 1 270 1 1 220 1 1 150 1 1 100 1 1 060 1 0 910 1 0 900 1 0 860 1 0 810 1 0 770 1 0 750 1 0 700 1 0 650 1 0 640 Inch 1 1 0 8 1 1 290 1 1 210 1 0 780 1 0 770 1 0 730 1 0 640 Copy 5 5 At 100 magnification A4 11 x 81 2 20 copies min ASH 1 x 17 12 copies min B4 257 x 364 81 2 x 14 13 copies min First copy time 4 9 s or less A4 11 x 81 2 100 magnification manual exposure Warm up time 45 s or less room temperature 20 C 68 F 65 RH Paper feed system Automatic feed from the paper drawer Capacity 250 sheets of 80 g m Manual feed from the bypass table Capacity 50 sheets of 80 g m Multiple copying 1 100 copies Photoconductor OPC drum diameter 60 mm Charging system Single positive corona charging drum potential 850 V DC Exposure system Lens exposure Fixed focal lens f 215 mm F8 0 Light source Halogen lamp 350 W Developing system Dry magnetic brush Developer 2 component ferrite carrier and N27T black toner Toner density control toner sensor Toner replenishing automatic from a toner hopper Transfer system Single positive corona charging 5 2 kV DC Separation system Single AC corona charging 4 1 kV AC 1 1 1 1AF
126. NSFORMER PCB SP 1 26 34993280 PARTS COMPOSITE CIRCUIT PCB 120 SP 1 27 61727540 INTERLOCK SWITCH 1 28 66127010 SWITCH COVER OPEN i 29 68328170 HUMIDITY SENSOR PCB 1 30 69027070 SWITCH MAIN 1 81 71804200 MAGNETPLATE TOP COVER 1 32 79927080 TOTALCOUNTER 1 33 M2104210 EDGING EDS 2 2 34 69905030 LABEL HIGH VOLTAGE CAUTION EXP 1 35 M2105990 CLAMPHL 18 0 KITAGAWA 4 36 34922500 MOUNT INLET 120 1 37 M2109000 WIRE SADDLE WS 1NS 4 38 M2109010 WIRE SADDLE WS 2NS 1 39 60101201 POWER CORD 120 ASS Y 1 40 M1203490 STRAIN RELEAF BUSHING SR 7K 2 1 Parts with are component parts or sub assemblies of the 1 For the installation refer to the Service Manual 2 For the installation refer to the manual How to install ADF 30 FIG 15 OPTION Quanti USA 32140254055 KEY COUNTER 41529210 SOCKET ASS YKEY COUNTER 0220040 PLUGEL4PELP 04V 0020900 SOCKETEL LLF 01T 1 3E 43826700 0121033 66069780 SETPARTSKEY COUNTER 66060010 COVER KEY COUNTER 68060020 RETAINERKEY COUNTER COVER 166060020 RETAINER KEY COUNTER 66060040 MOUNT KEY COUNTER 61303000 NUT BLACK 82303060 COUNTER SUNK HEAD SCREW BFHM3X6 BLACK B4104060 TRIPLE SCREW M4X6 CHROMIUM 84304060 TRIPLE SCREW M4X6 BLACK 84304100 TRIPLE SCREW MAXTO
127. OZONE 34922580 GEAR 32 DEVELOPING 34993230 PARTSFILTER OZONE SP 34993250 PARTS SOLENOID REGISTRATION SP 34923080 SPONGE B DUCT OZONE 66022131 GEAR 30 DEVELOPING DRIVE 34993270 PARTSFAN COOLING SP 66222180 SPRING DRUM DRIVE 12107210 SPRING BYPASS SOLENOID 34927140 48928105 WIRE ORIVE MOTOR IDLE PULLEY 15 34916070 ARM A PAPER FEED 66012350 OPTICALFILTER 34916240 ARMB PAPER FEED 86023050 HOLDER FILTER 34916350 SPRINGPAPER FEED SOLENOID 66023030 OPTICALFAN 34916460 SPONGE PAPER FEED SOLENOID 66023042 DUCT OPTICAL FAN 34922020 FRAME PAPER FEED 75710190 SPONGE MAIN CHARGER 34922110 BUSHING RETARO 34922210 BELT PAPER FEED 34922120 SHAFTRETARD 34922240 SHAFLFIXING DRIVE 34922220 GEAR 8 RETARD 34920240 GEAR 22 FIXING INPUT 34922230 GEAR 18 34920250 1 FRONT BEARING FIXING DRIVE 34922370 PULLEY 32 34920260 REAR BEARING FIXING ORIVE 34922400 PULLEY 14 34923070 SPONGE DUCT OZONE 34922410 GEAR20 34922280 PULLEY 30 34993260 PARTS SOLENOID PAPER FEED SP 34922560 COLLAR FIXING 77721721 IDLE GEAR 38 EJECT SECTION 34923010 DUCT COOLING 34923020 34923060 34916500 SPRINGBYPASS 34922060 REARBUSHING DRUM 34922070 REAR GROUND PLATE DRUM 34922080 MOUNT DRIVE MOTOR 34922190 BELTFIXING DUCT OZONE SPONGE COOLING DUCT AN A dM NONO EE rr a Parts with are component parts or sub assemblies of the Pe
128. Paper jam in the registration section J30 The registration switch RSW is on when the main switch is turned on or when the front or eject cover is closed The registration switch RSW does not turn off within 3580 ms after the registration solenoid RSOL has turned on Off RSOL On Off RSW 3580 ms On Timing chart 2 2 3 2 2 2 1AF Paper jam in the paper conveying or fixing section J40 The eject switch ESW does not turn on within 1650 ms after the registration solenoid RSOL has turned on except for the 1200 ms from the registration switch RSW turning off when the drive does not stop Off RSOL On Off ESW 1650 Timing chart 2 2 4 Paper jam in the eject section J50 When the eject switch ESW is on when the main switch is turned on or when the front or eject cover is closed a forced ejection is performed the eject switch ESW does not turn off within 2800 ms ESW 2800 ms Of On Timing chart 2 2 5 The eject switch ESW does not turn off within 3580 ms after the eject switch ESW has turned on ff ESW 3580 ms 9 On Timing chart 2 2 6 2 2 3 1AF CONTENTS 2 3 Operation of the PCBs 2 3 1 Composite i iier ertet pe ES E rec Rc 2 3 1 2 3 2 Main PCB e deua 2 3 3 1 Fixing unit abnormally high temperature shorted thermistor detection 2 3 4 2 Toner feed motor drive circuit 2 3 5 3 Scanner motor drive
129. R 1 15 34993020 PARTS HOPPER ASS Y N A SP H 34960030 PLATE SPRING ORIGINAL SIZE INDICATOR 1 15 34993060 PARTS SCANNER UNIT ASS Y 100 SP 8 34960050 ORIGINAL SIZE INDICATOR ORIGINAL INCH i 15 34993080 PARTS TRANSFER CHARGER ASS Y SP 6 34960070 BASE POWER SOURCE BOX 1 15 34993090 PARTS FIXING ASS Y 120 SP 2 34960080 UPPER COVER POWER SOURCE BOX 1 15 34993110 PARTS OPERATION UNIT ASS Y INCH SP 4 34960090 MIDDLE COVER POWER SOURCE BOX 1 15 34993130 PARTS GRID SP 6 34960100 WIRE 1 POWER SOURCE BOX i 15 34993170 PARTS COVER DOCTOR BLADE SP 9 34960110 WIRE 2 POWER SOURCE BOX 1 15 34993200 PARTS ROLLER HEAT SP 34960120 WIRE 3 POWER SOURCE BOX 1 15 34993210 PARTS HEATER 120 FIXING SP 34950130 WIRE 4 POWER SOURCE BOX 1 15 34993230 PARTS FILTER OZONE SP 34960140 RESISTOR 15 0HM 1 15 34993241 PARTS IC ROM SP 34960150 RESISTOR 240 1 15 34993250 PARTS SOLENOID REGISTRATION SP 1 1 1 2 1 1 1 2 1 1 1 1 2 1 Q3 Oo 00 60 Co Co Oo 349 1 Quantity USA Fig No 120v Description CAUTION LABEL HIGH TEMPERATURE L EXP CAUTION LABEL CONTACT GLASS HUMIDITY SENSOR PCB SPRING UP 120V 9 No ti 49028116 BUSHING 6 CLEANING UNIT 49927306 MS MAGNET S 60101201 POWER CORD 120 ASS Y 60820010 EJECT PULLEY 68305090 68305110
130. RETAINER KEY COUNTER 75720060 BUSHING HEAT ROLLER 66060040 MOUNTKEY COUNTER 75 20080 SHAFTSEPARATION CLAW 66068450 PRESS ROLLER PFA 75720240 SPRING SEPARATION CLAW 86069780 SET PARTS KEY COUNTER 76727010 ORIGINAL SIZE SWITCH 66127010 SWITCH COVER OPEN 77020010 BEARING PRESS ROLLER 66205080 LABEL FUSE 77616110 PADTC CLEANING 66222180 SPRING ORUM DRIVE 77721721 IDLE GEAR 38 EJECT SECTION 66227110 MOTOR MAIN 79904140 ORIGINAL HOLDER SPACER 66227120 NOISE FILTER 100 79927080 TOTALCOUNTER 66227260 WIRE GRID B2303060 COUNTER SUNK HEAD SCREW BFHM3X6 BLACK 66227320 IC NVRAMA B4104060 TRIPLE SCREW M4XG CHROMIUM 67305310 CAUTION LABEL HV B4304060 TRIPLE SCREW M4X6 BLACK A nO RO PO CO DO TO Qno d amp DO DA 67312250 PIN ORIGINAL INDICATION PLATE B4304100 TRIPLE SCREW M4X10 BLACK 40 Description C1303000 NUT M3 BLACK 10220040 PLUG EL 4P ELP 04V J0220900 SOCKET EL LLF 01T 1 3E 0207000 BINDING BAND KB 100 1 M1203490 M1661000 M2103080 M2104210 M2104220 M2104260 STRAIN RELEAF BUSHING SR 7K 2 FUSE 15 314015 BUSHING TB 2533 KITAGAWA EDGING EDS 2 EDGING EDS 1717U EDGING EDS 0607U KITAGAWA M2105930 CLAMPNAD O4 KITAGAWA M2105940 CLAMP NAD O6 KITAGAWA M2105990 CLAMPHL 18 0 KITAGAWA 2107120 2108040 BINDING BAND 56 130
131. Re2 m 0 5 weet lt Tat traf SE g 1d Fol 48 m en 3492801 icto 20 6 1 Mio REV 3 i gt ae 2 ew v 2 5 CN17 1 21 5 i A ouis Terminals CN Voltage Remarks 1 1 4 3 4 3 4 3 4 3 4 3 4 3 4 3 4 3 24 0 V DC pulse 24 0 V DC pulse 24 0 V DC pulse 24 0 V DC pulse 24 0 V DC pulse 24 0 V DC pulse 24 0 V DC pulse 24 0 V DC pulse OPCB LED lighting source SEG 8 output OPCB LED lighting source SEG b output OPCB LED lighting source SEG c output OPCB LED lighting source SEG 4 output OPCB LED lighting source SEG 6 output OPCB LED lighting source SEG f output OPCB LED lighting source SEG output OPCB LED lighting source SEG h output 3 6 21 1AF Terminals CN Voltage Remarks 1 9 4 3 1 10 4 3 1 11 4 3 1 12 4 3 1 13 4 3 1 14 4 3 1 15 4 3 1 16 4 3 1 17 4 3 1 18 4 3 1 19 4 3 1 20 4 3 1 21 4 3 1 22 4 3 1 23 4 3 1 24 4 3 24 0 V DC pulse 24 0 V DC pulse 24 0 V DC pu 24 0 V DC pu 24 0 V DC pu 24 0 V DC puls 24 0 V DC pulse 24 0 V DC pulse 0 5 V DC pulse 0 5 V DC pulse 0 5 V DC pulse 0 11 7 V DC 0 15 9 V DC 0 15 9 V DC 0 24 V DC 0 5V DC OPCB scan si OPCB scan si OPCB scan si
132. SPACER KGLS 14S M2108700 SPACERKGLS BRF KITAGAWA M2109000 WIRE SADDLE WS 1NS M2109010 WIRE SADDLE WS 2NS M2109170 WIRE SADDLE WS 1NS VO Quanti UBAY 1 i 4 6 1 2 1 4 1 1 5 2 4 2 3 3 4 1 4 EC Quantity Description USA 120V DRUM FOR DC1560 USA KEY COUNTER The above items are supply items only and as such they must be ordered from your regional office 349 1
133. SW SM BYPSOL 147 P4140 ms 1 gt 250 ms r 100 ms RSOL B o 5 Auto exposure mode A4 11 x 81 2 copy paper magnification ratio 100 1 Varies depending on the setting by simulation 27 Timing chart 1 3 2 Paper feed from the bypass table When the print key is pressed the bypass solenoid BYPSOL turns on for 250 ms which raises the bypass lift and rotates the bypass lower pulley to perform primary paper feed The paper is then fed by the upper and lower registration rollers until the leading edge stops at the registration stopper to create slack in the paper before registration The leading edge of the paper turns the registration switch RSW on The scanner starts scanning and the home position switch HPSW turns off After 147 pulses 140 ms the registration solenoid RSOL turns on and the registration stopper lowers The lower registration and pre transfer rollers convey the paper to start secondary feed 100 ms after the trailing edge of the paper turns the registration switch RSW off the registration solenoid RSOL turns off to complete secondary paper feed 1 3 9 1AF 2 Main charging section The main charging section consists of the drum and main charger The drum is electrically charged uniformly by means of a grid to form a latent image on the surface Tungsten wire Main charger Main charger grid Figure
134. See page 3 3 30 Adjusting lateral magnification See page 3 3 35 Adjusting longitudinal magnification See page 3 3 36 Adjusting leading edge registration timing See page 3 3 12 Setting the lens unit rank See page 3 3 38 Adjusting exposure amount for enlargement reduction mode See page 3 3 37 3 2 11 1AF Description Remarks Setting transfer voltage See page 3 3 48 1 Enter 31 with the numeric keys 2 Press the print key 3 Change the setting with the zoom up down keys Contents Setting range Reference Transfer voltage 0to7 5 control value Press the print key The new setting is stored Press the all clear reset key Operation check mode is entered and the following operation takes place under the new setting All clear reset key 1200 ms Dev Bias Timing chart 3 2 1 6 Press the all clear reset key The operation stops 7 Press the stop clear key 3 2 12 Description 1AF Remarks Setting the drum potential 1 Enter 32 with the numeric keys Press the print key 2 9 Select a mode with the paper select key 4 Change the setting with the zoom up down keys See page 3 3 44 Mode Contents Setting range Reference 1 Normal mode grid control value 0 to 255 2 Normal mode main charging 0to3 control value 3 Photo mode grid control value 0 to 255 4 Photo mode main charging 0to3
135. T BASE 1 34921080 GEAR 22 1 2 1 1 1 1 34921080 FULCRUM Parts with are component nccambhlh annnanvinn rts or sub assemblies of the HG 13 DAIVING COULING SEC 349 1 Des 41 ws Es 42 pa E f 8 OLD 7 Ni SS 1 FIG 13 DRIVING COOLING SECTION 349 1 Decii TER eg ton escription escrip E 120 M2104220 EDGINGEDS 1717U GEAR 80 34 45727313 IDLE GEAR FIXING UNIT GEAR 60 40 34916250 ARM REGISTRATION GEAR 64 20 34916470 SPONGE REGISTRATION SOLENOID GEAR 23 34922010 REINFORCEMENT DRIVE GEAR 60 24 34922290 34922300 34922310 34922320 34922340 34922030 POSITIONING PLATE DRUM 34922440 COLLAR DRIVE 34922040 COUPLING DRUM 66227110 34922050 SHAFT COUPLING 34906130 SPRING BYPASS LIFT 34922090 BUSHING DEVELOPING DRIVE 34906140 GEAR 38 PAPER FEED 34922100 SHAFT DEVELOPING DRIVE 34916170 SPRING PAPER FEED 34922330 GEAR 60 50 34916480 COLLAR PAPER FEED GEAR 34922350 PULLEY 33 14 34922180 TENSION PLATE DEVELOPING 34922380 GEAR30 18 34922200 BELTDEVELOPING 34922390 GEAR 25 PAPER FEED 34922430 PIN SCANNER RETAINING 34922530 COLLAR PULLEY 34922520 COUPLER PAPER FEEO 34922570 GEAR 23 DEVELOPING 34923030 DUCT B
136. TNS Toner level sensor TLDS Fixing unit thermistor FTH Drum thermistor 444222221 Humidity sensor HUMSENS External temperature thermistor 1AF Detects the presence or absence of the toner cartridge Detects the toner density in the developing unit Detects the toner level in the toner hopper Detects the heat roller temperature Detects the drum section temperature Detects the external humidity Detects the external temperature 2 1 3 1AF 1 C Machine front ZA Machine inside Machine rear Figure 2 1 3 Layout of electrical parts motors and solenoids 1 Drive motor DM 5 lee Drives the machine 2 Scanner motor SM Drives the optical system 3 Lens motor LM Drives the lens and mirrors 4 amp 5 4 Toner feed motor Replenishes toner 5 Optical section fan motor OPFM Cools the optical section 6 Internal cooling fan motor ICFM Cools the machine interior 7 Ozone exhaust fan motor OEFM Exhausts ozone 8 Paper feed solenoid PFSOL Primary paper feed from the paper drawer 9 Bypass solenoid BYPSOL
137. TRATION SWITCH 34916090 LOWER ROLLER REGISTRATION 34916100 UPPER PULLEY REGISTRATION 34916110 LOWER FRONT ROLLER TRANSFER 34916140 REAR ARM REGISTRATION ROLLER 34916150 SHAFT REGISTRATION FULCRUM 34916160 SHAFT JAM FULCRUM 34916180 LEVER JAM FULCRUM 34916190 HOLDER REGISTRATION 34916200 1 PULLEY HOLDER 34916210 SHAFT HOLDER 34916230 SHAFTROLLER 34916270 PULLEY 15 34916280 GEAR 15 30 34916290 GEAR 25 34916300 REAR PULLEY 15 34916310 PULLEY 20 34916320 BUSHINGS 34916330 BELT REGISTRATION 34916340 BELTFEED 34916360 GUIDE CONVEYING 34916370 PIN REGISTRATION 34916380 COLLAR REGISTRATION 34916390 PLATE SPRING REGISTRATION PULLEY 34916420 LOWER ARM TRANSFER 34917130 SPRING TRANSFER LIFT 34917160 HOLDER TRANSFER CHARGER 34917170 PULLEY TRANSFER HOLDER 34920220 SPRING PRESSURE 34922480 BEARING REGISTRATION FULCRUM 34923040 DUCT C OZONE BUSH 6 BINDING BAND KB 100 1 PULLEY 16 SEAL REGISTRATION GUIDE 4 0 6 M Parts with are component parts or sub assemblies of the assembly appearing immediately above them 11 FIG 6 CHARGING SECTION Be sure to order the tungsten wire Ref No 3 by the 100 meters spoo 41626652 Be sure fo order the tungsten wire Ref No 30 by the 50 meters spool 42929503 12 FIG 6 IMAGE FORMATION SECTION Description 349
138. TTE PRESSURE RELEASE 34907110 PIN PRESSURE RELEASE 34907120 SPRING PRESSURE RELEASE 34907130 REARSTOPPER PAPER 34907140 GEAR 18 CASSETTE 34907150 PULLEY CASSETTE 34907260 HOLDER CURSOR 34907270 PLATE SPRING CURSOR 34907300 PIN CASSETTE 34907330 LABEL PAPER UPPER LIMIT 34907340 REAR STOPPER B PAPER 34907350 PAD A CASSETTE Oo RON rcc EIE Parts with are component paris or sub assemblies of the FIG 4 PAPER FEED IN SECTION A 29806810 34905010 34906040 34905050 34906070 34906120 34906150 34906160 34906170 34906180 34906190 34907200 34907210 34907220 34907230 34907280 34907290 34907320 34917240 71806550 34927250 71815161 72907620 0207000 33908990 33907100 33907110 33928110 34906200 34906210 34906220 34906230 34906240 34906250 34906260 34906270 34927160 65914120 76727010 34906290 Description BUSHING 6 REGISTRATION UPPER PULLEY BYPASS LOWER GUIDE BYPASS WORK PLATE BYPASS LIFT SHAFT BYPASS PAPER FEED LEVER BYPASS LIFT INNER BUSHING PAPER FEED OUTER BUSHING PAPER FEED FILM BYPASS GUIDE SPRING LIFT AUXILIARY FILM PAPER GUIDE PULLEY A PAPER FEED PULLEY B PAPER FEED SHAFT A CASSETTE PAPER FEED SHAFT B CASSETTE PAPER FEED SUPPORT PLATE PULLEY PULLEY GUIDE GUIDE PAPER LOWER SPONGE TRANSFER SIZE INDICATOR BYPASS USA GROUND WIRE BYPASS LIFT FRONT SEAL S
139. Tester Procedure Apply the tester s positive terminal to jumper J401 of the high voltage transformer PCB Apply the tester s negative terminal to an uncoated part of the copier s frame _ _ Enter simulation mode Y Enter 31 with the numeric keys EY Press the print key Y Press the all clear reset key High voltage transformer PCB To ground uncoated part of the frame Tester Figure 3 3 50 Does the sepa ration shift bias voltage read the specified value Press the all clear reset key Press the stop clear key Exit simulation mode End Turn control VR402 until the specified value 100 10 V DC is reached Turn the control counterclockwise to decrease the voltage and clockwise to increase it 3 3 53 1AF 3 3 8 Cleaning section 1 Detaching and refitting the cleaning blade Check or replace the cleaning blade as follows Procedure 1 Open the front cover and take the image formation unit out of the copier 2 Detach the main charger and drum 3 Push up the blade mount and slide the blade lever toward the machine front to lock the cleaning blade close to the drum Blade mount A Blade lever Figure 3 3 51 3 3 54 1AF 4 Remove the three screws and the cleaning blade Screws Cleaning blade
140. UB UNIT BLADE FRICTION CLOTH CASSETTE BINDING BAND KB 100 1 SWITCH BYPASS SIZE DETECTION RACK CASSETTE TERMINAL PAPER SIZE PCB SIZE DETECTION PCB TABLE BYPASS TABLE BYPASS SLIDE COVER SIZE DETECTION FRONT CURSOR BYPASS REAR CURSOR BYPASS SUPPORT PLATE BYPASS WIRE SPRING WIRE SUPPORT ADJUSTING PLATE BYPASS WIRE BYPASS GEAR 18 0LE DEVELOPING ORIGINAL SIZE SWITCH STOPPER PAPER SET 1 1 1 1 1 1 5 5 4 1 1 2 4 1 1 2 2 1 1 1 1 1 m 1 3 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 349 Quanti Description USA 120V SLIDER BYPASS PAPER FEED 1 are componi or sub assemblies of the 349 1 rna 2 CONVEYING 10 FIG 5 PAPER CONVEYING SECTION 349 1 Quantity Ko Quantity USA Description USA 120 120 WIRE REGISTRATION Description 49028112 BUSHING 8 LOWER REG ROLLER 34927120 34916510 SPHING LEVER 34927240 GROUND WIRE REGISTRATION 29806810 BUSHING 6 REGISTRATION 34806150 STOPPERS 34916010 GUIDE REGISTRATION 71821491 SHIFT 34916020 SHUTTERREGISTRATION 72107210 SPRING BYPASS SOLENOID 73210450 0207000 34922460 34916490 34916030 REAR FRAME REGISTRATION 34916040 FRONT FRAME REGISTRATION 34916050 REAR PLATE SPRING REGISTRATION UNIT 34916060 FRONT PLATE SPRING REGISTRATION UNIT 34916080 SUPPORT PLATE REGIS
141. UNTER 1 34922320 GEAR 23 1 13 34926040 1 MOUNT A OPERATION UNIT 1 34922330 GEAR 60 50 1 13 34926050 MOUNT A OPERATION UNIT 1 34922340 GEAR 60 24 1 13 34926060 SEAL LIGHT SHIELD BLANK LAMP 1 34922350 PULLEY 33 14 1 13 34926070 SHEETWIRE PROTECTION 2 34922370 PULLEY 32 1 13 34922380 GEAR 30 18 1 13 34927020 LAMP BLANK 1 34922390 GEAR 25 PAPER FEED 1 13 34927031 LAMP CLEANING 1 34922400 PULLEY 14 1 13 34927050 SENSOR REMAINING DETECTION f 34922410 GEAR 20 1 13 34927110 WIRE IMAGE FORMATION JUNCTION 1 34922420 GEAR 15 1 2 34927120 WIRE REGISTRATION 1 34922430 PIN SCANNER RETAINING 2 13 34927130 WIRE COMPOSITE CIRCUIT 1 34922440 COLLAR DRIVE 1 13 34927140 WIRE DRIVE MOTOR 1 34922460 PULLEY 16 1 5 34927150 WIRE MAGE FORMATION UNIT H 34922480 BEARING REGISTRATION FULCRUM 2 5 34927160 WIRE BYPASS 1 1 1 1 1 1 1 349 1 34960260 GROUNDPLATE CONTACT GLASS 34968010 WIRE DEHUMIDIFIER 34968020 MAINPCB ASS Y SP 34968030 SENSOR POSITION DETECTION 34968040 GLASS COVER 34968050 MOTOR SCANNER DRIVE 34968060 MOTOR LENS DRIVE 34968070 DRUM SCANNER WIRE 34968080 FRONT PULLEYSCANNER WIRE 34968090 HEAR PULLEY SCANNER WIRE 34968100 FRONT PULLEY 2 3 MIRROR FRAME 34968110 REAR PULLEY 2 2 MIRROR FRAME 34968120 WIRE SCANNER 34968140 BELTSCANNER MOTOR 34968150 BELTSCCANNER DRIVE 1 34993260 PARTS SOLENOID PAPER FEED SP 15 34993270 PARTS FAN COOLING SP 1
142. Y To ground Enter simulation mode uncoated part of the frame Tester Figure 3 3 46 Enter 31 with the numeric keys Y Press the print key Y Press the all clear reset key Turn control VR202 until the Does the devel 95 oping bias voltage read the specified value 280 5 V DC specified value is reached Turn the control counterclockwise to decrease the voltage and clockwise to increase it If developing bias is set below the specified level Press the all clear reset key dark background shows if it is above the specified level the copy image is too light Yes Y Press the stop clear key Y Exit simulation mode 3 3 48 1AF 3 3 7 Transfer and separation section 1 Replacing the charger wires Take the following steps when the transfer or separation charger wire is broken or is to be replaced Precautions Use the specified tungsten wire for the charger wire The part of the wire wrapped around the charger spring must not protrude from the charger housing The cut end of the charger wire must not protrude more than 2 mm from under the charger wire retainer pin Use a clean undamaged tungsten charger wire Keep the charger wire taut by ensuring the charger spring is under tension Clean the charger shield when replacing the charger wire Procedure 1 Open the front cover
143. a 14212 io reo aS z seco TE m AS t H B35s 119 5 3 50 waa0 2 5 29 0210 2 85 A9 cio 5 5 X8 2107 15 1 1051 5 Tse t 5 AO og 38 20 S Gd 5 zm mk 5 oo ASH MSN 5 o 9i 110 sis 29 292 E 22 1512 Qd 60 200 9 2519 3 5 20 910 gil a 1610 n a 38 289 1 id e 5 80 be g 21 3 6610 EE IC 0956 gt vv OH 9615 ans g 8 MSB 8 e6 5 459 wo Gu reo 5 72655 5 YAS 600271514 LEA 192 No 6997 8 5 51 30 666 ya 2919 3M 535 2 MA 2870 AO 1 280 x Ave 3 EN m cero 22289 Qd 1902 230 20 i X8 F8 29 222 10 Qi 150 ho 2950 AO 1 960 osaa z AS 992 E 39 250 eA 5 8 W r 3M 5515 Aas AE P 580 3 siio L a AVI 3M 2591 TOS Hg 5 599 5 7564 29 20 nes AE 82 30 220 oco 31 5 907 95 eg 99 AO 6 660 2 ni 20 f 9901 Z8 WT TAS D 792 sso i ___36 r20 ZERO 3 3M 95 E 55 620 q 9 225 3M 690 lc A9 660 8 FeO 3M 29 Ag SEIL 100 3M 19 AT AO 2255 Go 8 1529 3M 220 E m AO 6 069 3M Tuo 505 2
144. after the main switch has been turned on with the fixing temperature remaining below 100 C 212 F Broken fixing unit thermis tor Measure the resistance If it is replace the fixing unit thermistor Poor contact in the fixing unit thermis tor connector terminals Check for continuity across the connector terminals If none replace them Defective main PCB Replace the main PCB and check the operation Shorted fixing unit ther mistor abnormally high temperature The fixing unit thermistor output exceeds 4 73 V Shorted fixing unit thermis tor Measure the resistance If it is 0 replace the fixing unit thermistor Defective main PCB Replace the main PCB and check the operation 3 5 5 1AF Contents Remarks Causes Check procedures corrective measures Broken drum thermistor wire The drum thermistor out put is below 0 5 V continu ously for 500 ms or longer Broken drum thermistor wire Measure the resistance If it is replace the blank lamp unit containing the drum thermistor Poor contact in the drum thermistor connector terminals Check for continuity across the connector terminals If none replace them Defective main PCB Replace the main PCB and check the operation Shorted drum thermistor The drum thermistor out put is above 4 5 V continu ously for 500 ms or longer Shorted drum
145. al holder Remove the tapes holding the insertion guides of the bypass table Remove the tape and right spacer eR Insertion guides Right spacer Figure 3 1 7 6 Open the front cover and remove the tapes and the four spacers Remove the tape holding the cleaner tab Upper hinge spacer Image formation unit spacer Cleaner tab Tape Lower hinge spacer Inner spacer Figure 3 1 8 3 1 7 1AF 7 Remove the 12 pin plug of the image formation unit 8 Remove the tape and turn the paper conveying section lever down Paper conveying section lever Figure 3 1 9 9 Slide the image formation unit lever toward the left and holding the front part of the unit and the unit s handle pull the unit level out of the machine Do not touch the drum separation claws when holding the image formation unit Image formation unit lever Image formation unit Figure 3 1 10 Removing the image formation unit 3 1 8 1AF 10 Remove the tape holding the fixing unit front guide inside the machine Tape Kr Fixing unit front guide Figure 3 1 11 Load developer Caution Place the image formation unit on a level surface when loading developer 1 Slide the developing unit top lid toward the machine front off the image formation unit 1AF 2 Shake the developer bottle well 3 Pourdeveloper into the developing unit so that it covers the entire
146. ance with warning messages using this symbol Symbols The triangle symbol indicates a warning including danger and caution The specific point of attention is shown inside the symbol N General warning AN Warning of risk of electric shock AEN Waming of high temperature indicates a prohibited action The specific prohibition is shown inside the symbol Q General prohibited action Q Disassembly prohibited indicates that action is required The specific action required is shown inside the symbol General action required e Remove the power plug from the wall outlet Always ground the copier 1 Installation Precautions A WARNING Do not use a power supply with a voltage other than that specified Avoid multiple connections to one outlet they may cause fire or electric shock When using an extension cable always check that it is Q adequate for the rated current 2 Connect the ground wire to a suitable grounding point Not grounding the copier may cause fire or electric shock Connecting the earth wire to an object not approved for the purpose may cause explosion or electric shock Never connect the ground cable to any of the following gas pipes lightning rods ground cables for telephone lines and water DE pipes or faucets not approved by the proper authorities A CAUTION Do not place the copier on an infirm or angled surface the copier may Q tip over
147. and turn the paper conveying section lever down 2 Take the image formation unit out of the copier 3 Remove the screw and transfer charger stopper 4 Pull the front part of the transfer charger and slightly lifting it take the transfer charger out of the copier When refitting the transfer charger ensure the claws on the transfer charger rear housing is engaged with the claws inside the machine Transfer charger rear housing Transfer charger Paper conveying section lever Screw Transfer charger stopper Figure 3 3 47 Detaching the transfer charger 3 3 49 1AF 5 Remove the separation guide and transfer charger front and rear lids 6 Remove the charger wire retainer pins charger springs and then the charger wires 9 Charger terminals Transfer charger rear lid Separation guide Figure 3 3 48 Removing the charger wires 3 3 50 10 11 1AF Wind the new tungsten wires at least five turns around one end of the charger springs and trim the end of each wire The length of the twists and the cut wire must be less than 2 mm Hook the other ends of the charger springs to the charger terminals of the transfer charger rear housing Run each wire through the notch in the charger wire retainer pin and pull it tight so that the charger spring stretches to between 9 5 and 11 mm Insertthe retainer pins into the projections of the transfer charger front housing
148. aste SAM eMe i et A a 3 3 62 6 Detaching and refitting the heat roller and its separation otters A NNR 3 3 64 7 Detaching and refitting the lower eject roller 3 3 66 3 3 10 3 3 67 1 Replacing the ozone filter eee 3 3 67 1AF CONTENTS 3 4 PCB Initial Settings 3 4 1 Replacing the main 4 440000 3 4 1 3 4 2 Adjustment free variable resistors VR 3 4 4 1AF CONTENTS 3 5 Self Diagnostics 3 5 1 Self diagnostic 3 5 1 1 Self diagnostic 3 5 1 1AF CONTENTS 3 6 Troubleshooting 3 6 1 Image formation problems 3 6 1 1 No image entirely 3 6 4 2 No image entirely black 3 6 5 3 Image is too light 3 6 6 4 Background is visible 3 6 6 5 A white line appears longitudinally 3 6 7 6 A black line appears longitudinally 3 6 7 7 A black line appears laterally 9 6 8 8 One side of the copy image is darker than the other 3 6 9 9 Black dots appear on the image 3 6 9 10 Image is blurred onines 3
149. cee KYOCERA mita DC 1560 2050 SERVICE MAN aider Published in Oct 99 CAUTION Danger of explosion if battery is incorrectly replaced Replace only with the same or equivalent type recommended by the manufacturer Dispose of used batteries according to the manufacturer s instructions CAUTION Double pole neutral fusing 21 SERVICE MANUAL DC 1560 2050 KYOCERA Wild Safety precautions This booklet provides safety warnings and precautions for our service personnel to ensure the safety of their customers their machines as well as themselves during maintenance activities Service personnel are advised to read this booklet carefully to familiarize themselves with the warnings and precautions described here before engaging in maintenance activities Safety warnings and precautions Various symbols are used to protect our service personnel and customers from physical danger and to prevent damage to their property These symbols are described below DANGER A WARNING A CAUTION High risk of serious bodily injury or death may result from insufficient attention to or incorrect compliance with warning messages using this symbol Serious bodily injury or death may result from insufficient attention to or incorrect compliance with warning messages using this symbol Bodily injury or damage to property may result from insufficient attention to or incorrect compli
150. cleaning blade 4 Dirty or flawed main charger grid Check procedures corrective measures Dirty optical section Clean the mirrors dust filter and other parts in the optical section Dirty or flawed drum Clean the drum or if it is flawed replace it see page 3 3 40 Deformed or worn cleaning blade Check visually if the edge of the cleaning blade is deform ed or worn If it is replace see page 3 3 54 Dirty or flawed main charger grid Replace the main charger grid 3 6 7 1AF 7 A black line appears aterally Causes Causes 1 Flawed drum 2 Poor developing bias wire contact 3 Dirty developing section 4 No developing bias output Check procedures corrective measures Flawed drum Check the drum visually If it is flawed replace see page 3 3 40 Poor developing bias wire contact Check for poor developing bias wire contact Dirty developing section Clean any part contaminated with toner or carrier in the developing section No developing bias Shorted developing bias wire or it makes poor contact Defective high voltage transformer PCB 3 6 8 Check the developing bias wire If there is any problem replace it Run simulation 10 and check if CN1 20 on the main PCB goes low If not replace the main PCB If no developing bias voltage is output in simulation 10 after the main PCB has been
151. copying cycle to the next copying cycle min N the number of papers fed during the next copying cycle While N 2T the motor does not operate When N 2T or 20 the motor turns on For example if continuous copying is started with the number of copies presetto 15 when T is 5 minutes the optical section fan motor turns on when N reaches 10 3 3 39 1AF 3 3 5 Drum section 1 Replacing the drum Perform the following steps when cleaning or replacing the drum Precautions Avoid direct sunlight and strong light when detaching and refitting the drum Hold the drum at the ends and never touch the drum surface After removing the drum keep it in the drum case or storage bag to protect the surface from light Procedure 1 Open the copier front cover 2 Remove the 12 pin plug of the image formation unit 3 Turn the paper conveying section lever down Paper conveying section lever Figure 3 3 38 3 3 40 1AF 4 Slide the image formation unit lever toward the left and holding the front part of the unit and the unit s handle pull the unit level out of the machine Do not touch the drum separation claws when holding the image formation unit Image formation unit lever Image formation unit Figure 3 3 39 Removing the image formation unit 5 Push up the blade mount and slide the blade lever toward the machine rear to lock the cleaning blade away from the drum Blade mount Blade lever
152. ction 7 Charge erasing section 8 Fixing and eject section whe Heating the heat roller and detecting temperature 1 3 39 Fixing temperature 1 3 40 Paper separation rt ettet ete tre perta 1 3 42 1AF CONTENTS 2 1 Electrical Parts Layout 2 1 1 Electrical amp 5 1 2 1 1 1AF CONTENTS 2 2 Detection of Paper Misfeed 2 2 1 Paper misfeed detection esses 2 2 1 2 2 2 Paper misfeed detection conditions sess 2 2 2 1AF CONTENTS 2 3 Operation of the PCBs 2 3 1 Composite i iier ertet pe ES E rec Rc 2 3 1 2 3 2 Main PCB e deua 2 3 3 1 Fixing unit abnormally high temperature shorted thermistor detection 2 3 4 2 Toner feed motor drive circuit 2 3 5 3 Scanner motor drive 2 3 6 4 BesetcircUit evene 2 3 7 2 3 3 Operation unit Eie dte net n dre ts 2 3 8 1AF CONTENTS 3 1 Installation 3 1 1 Unpacking and installation 3 1 1 1 Installation 8 3 1 1 2 Installation procedure 3 1 2 3 1 2 Setting initial copy modes 3 1 16 3 1 3 Installing the key coun
153. ctor terminals If none replace them Loose scan ner drive belt Reinstall the belt and adjust the tension Loose scan ner wire Reinstall the wire Loose screws holding the scanner wire retainers Retighten the screws and adjust the image focus Defective main PCB Replace the main PCB and check the operation 3 5 3 1AF Contents Remarks Causes Check procedures corrective measures Lens motor problem The lens home position switch does not turn on or off within 7 s after initial operation has started Defective lens motor Check for continuity across the coil If none replace the lens motor Defective lens home position Switch Check if CN5 2 on the main PCB goes high when the lens home position switch is on and goes low when the switch is off If not replace the lens home position Switch Poor contact in the lens home position Switch con nector termi nals Check for continuity across the connector terminals If none replace them Defective main PCB Replace the main PCB and check the operation 8 5 4 Shorted high voltage transformer PCB The short problem signal HVT ALM is detected continuously for 2 s after the high voltage output has been turned on Broken main charger wire Check the charger wire visu ally If it is broken replace it The main charger leaks Check the main charger housin
154. d detection When paper jam occurs the copier immediately stops copying and the copy quantity magnification display on the operation unit shows PF J30 J40 or J50 indicating the location of the jam Paper jam counts sorted by the detecting conditions can be checked by jam code in simulation 74 To remove paper jammed in the copier open the drawer open the front cover and operate the paper conveying section lever open the eject cover or open the eject cover and detach the fixing unit guide To reset the paper misfeed detection open and close the front or eject cover to turn safety Switch 1 or 2 off and on Mec c mm Inch Recall Ld PF no paper feed or no paper present in the drawer J30 paper jam in the registration section J40 paper jam in the paper conveying or fixing section J50 paper jam in the eject section Figure 2 2 1 Misfeed location indication Figure 2 2 2 Misfeed detection 2 2 1 1AF 2 2 2 Paper misfeed detection conditions No paper feed PF The registration switch RSW does not turn on within 1500 ms after the paper feed solenoid PFSOL has turned on during drawer paper feed Off PFSOL On Off RSW 1500 ms On Timing chart 2 2 1 The registration switch RSW does not turn on within 2500 ms after the bypass solenoid BYPSOL has turned on during bypass paper feed Off BYPSOL On Off RSW 2500 ms On Timing chart 2 2 2
155. de Description Remarks 1AF Setting the auto clear time Enter 84 with the numeric keys Press the print key The current setting appears on the copy quantity display Change the setting with the zoom up down keys Contents Setting range Initial value Auto clear time 0 cancelled 90s 30 to 270 s Every press of the zoom up or down key changes the value by 30 Select 0 to cancel the auto clear function 4 Press the print key The new setting is stored 5 Press the stop clear key Setting the auto preheat time Enter 85 with the numeric keys Press the print key The current setting appears on the copy quantity display Change the setting with the zoom up down keys Contents Setting range Initial value Auto preheat time 0 cancelled 15 min 5 to 45 min Every press of the zoom up or down key changes the value by 5 Select 0 to cancel the auto preheat function 4 Press the print key The new setting is stored 5 Press the stop clear key 3 2 29 1AF Description Remarks Setting the auto shutoff time Enter 86 with the numeric keys Press the print key The current setting appears on the copy quantity display Change the setting with the zoom up down keys Contents Setting range Initial value Auto shutoff time 0 cancelled 30 min 15 to 120 min Every press of the zoom up
156. des 3 3 18 1AF Charger wire retainer pin Between 2 and 4 mm Charger terminal A H H JG TT Pr arm WE i Notch j Spring Less than 2 mm Less than 2 mm Main charger front housing Main charger rear housing Figure 3 3 22 Replacing the charger wire 11 Refit the front and rear lids to the main charger 12 Refit the main charger grid and grid tension plate When refitting the grid ensure the marked side is facing up and the grid is not riding over the film Main charger grid Machine front Figure 3 3 23 13 Refit all the removed parts 3 3 19 1AF 3 3 4 Exposure section 1 Detaching and refitting the halogen lamp Clean or replace the halogen lamp as follows Procedure 1 Remove the contact glass 2 Move light source unit 1 to the cutout in the upper rear frame 3 Remove the halogen lamp by pressing its terminals at the front and rear of light source unit 1 outward When removing the lamp touch only the ceramic parts 4 Clean or replace the halogen lamp 5 Refit all the removed parts Lamp terminal Halogen lamp Halogen lamp Figure 3 3 24 Detaching the halogen lamp 3 3 20 1AF 2 Detaching and refitting the optical section thermostat Caution Use the specified thermostat for replaceme
157. developing bias is output while CN1 8 on the high voltage transformer PCB goes low replace the high voltage transformer PCB Defective main PCB Run simulation 10 and check if CN1 20 on the main PCB goes low If not replace the main PCB 21 PF is dis played while paper is present in the paper drawer Poor contact in the drawer switch con nector terminals Check for continuity across the connector terminals If none replace them Defective drawer Switch Check for continuity If none when the drawer switch is turned on replace the Switch 3 6 35 1AF Problem Causes Check procedures corrective measures 22 The size of paper placed on the bypass table is not displayed cor rectly Poor contact in the bypass paper length switch con nector terminals Check for continuity across the connector terminals If none replace them Poor contact in the bypass paper width switch con nector terminals Check for continuity across the connector terminals If none replace them Defective bypass paper length Switch Check if CN12 2 on the main PCB goes low when the bypass paper length switch is turned on If not replace the bypass paper length switch Defective bypass paper width switch If the levels of CN12 7 8 and 9 on the main PCB do not change while the insertion guides on the bypass table are moved re place the bypass paper width switch
158. ding the drawer cover and adjust the cover s position using the center of the scale as the reference For example 1 move the drawer cover in the direction of the black arrow mp For example 2 move the drawer cover in the direction of the white arrow gt Is the center of the image aligned with that of the original t Ells Figure 3 3 13 Adjusting the position of the drawer cover Screws Drawer cover 3 3 10 7 Adjusting the position of the bypass table adjuster 1AF Perform the following adjustment if there is a regular error between the centers ofthe original and the copy image on the paper fed from the bypass Important Before starting this adjustment ensure 5 Adjusting the position of the original size indicator has been completed Procedure Start Y Make a test copy at 100 with the maximum size of the copy Original 5 example example Figure 3 3 14 Loosen the three screws holding the bypass table adjuster and move the front and rear sliders to adjust the position of the adjuster For example 1 move the adjuster in the direction of the white arrow 5 gt For example 2 move the adjuster in the direction of the black arrow mb Is the center of the image aligned with that of the original Screws Slider
159. dy Electrical problem with the by pass solenoid See page 3 6 32 5 A paper jam in the paper conveying or fixing section is detected during copy ing J40 ap pears Check if the contact between the upper and lower registration rollers is correct Remedy if necessary Check if the contact between the upper and lower pre trans fer rollers is correct Remedy if necessary Defective eject switch With 5 V DC present at CN2 7 on the main PCB check if CN2 8 on the main PCB goes low when the eject switch is turned on If not replace the eject switch The registration solenoid mal functions Check and remedy Electrical problem with the reg istration solenoid See page 3 6 32 3 6 17 1AF Problem Causes check procedures Corrective measures 6 A paper jam in the eject section is de tected during copying 450 appears 3 6 18 Check if the press roller is ex tremely dirty or deformed Clean or replace the press roller see page 3 3 62 Check if the press roller separa tion claws are extremely dirty or deformed Clean or replace the press roller separation claws see page 3 3 62 Check if the heat roller separa tion claws are extremely dirty or deformed Clean or replace the heat roller separation claws see page 3 3 64 Check if the contact between the upper and lower eject roll ers is correct Remedy
160. e Initial value 1 100 000s and 10 000s digits Oto 10 2 1 0005 and 1005 digits 0 to 99 3 10s and 1s digits 0 to 99 4 Change the setting of each mode with the zoom up down keys Example 4 for mode 1 0 for mode 2 0 for mode 3 In this example the maintenance cycle is 40 000 Setting all the modes to 0 cancels the maintenance cycle detection Press the print key The new setting is stored Caution It is necessary to press the print key for each mode to store the new setting 6 Press the stop clear key 3 2 21 1AF Description Remarks Checking clearing the maintenance count Enter 72 with the numeric keys Press the print key Select a mode with the paper select key The main tenance count appears on the copy quantity dis play Mode Contents Setting range Initial value 1 100 000s and 10 000s digits to 99 2 1 000s and 100s digits to 99 3 10s and 1s digits 0 to 99 To change the maintenance count 4 Change the setting with the zoom up down keys in each mode Example 7 for mode 1 0 for mode 2 0 for mode 3 In this example the maintenance count is 70 000 5 Press the print key The new setting is stored Caution It is necessary to press the print key for each mode to store the new setting To clear the maintenance count 6 Press the all clear reset key All the digits of the count are reset to 0 all cleared 7 Press
161. e electric shock if handled improperly CAUTION Wear safe clothing Avoid wearing loose clothing or accessories such as ties which may be caught in rotating sections Use utmost caution when working on a powered machine Keep away frOM Chains and belts 5 cesis tette edente da Handle the fixing section with care to avoid burns as it can be ZN extremely HOt ute deti tbe tee eis e i ER EORR TRE Check that the fixing unit thermistor heat and press rollers are clean 63 Dirt on them can cause abnormally high temperatures Do not remove the ozone filter if any from the copier except for Q routine replacement 0 0 nennen enne nnne Do not pull on the AC power cord or connector wires on high voltage Q components when removing them always hold the plug itself Do not route the power cable where it may be stood on or trapped If Q necessary protect it with a cable cover or other appropriate item Treat the ends of the wire carefully when installing a new charger wire Q to avoid electric leaks 2 Remove toner completely from electronic components A Run wire harnesses carefully so that wires will not be trapped or Q daimaged EERTE FE EA E T UB E After maintenance always check that all the parts screws connectors and wires that were re
162. e press roller ensure that the press roller bushings are not overriding the fixing unit press plates and that the press roller does not touch the tips of its separation claws Press roller Press roller bushings Figure 3 3 64 Detaching the press roller and its separation claws 3 3 63 1AF 6 Detaching and refitting the heat roller and its separation claws Clean or replace the heat roller and or its separation claws as follows Procedure 1 Remove the fixing heater see page 3 3 57 2 Unlockthe fixing unit by pulling the press levers atthe front and rear and open the fixing unit see Fig 3 3 62 Removing the heat roller 3 Remove the two pins and fixing unit upper guide from the fixing unit 4 Remove the circlip and bushing from the front of the heat roller 5 Remove the circlip heat roller gear 40 and bushing from the rear of the heat roller 6 Remove the heat roller from the fixing unit Pins Fixing unit upper guide Why _ Heat roll 4 eat roller gear 40 Heat roller bushing Circlip Heat roller Figure 3 3 65 Detaching the heat roller 3 3 64 1AF Removing the heat roller separation claws 7 Unhook the separation claw springs from the fixing unit upper guide and heat roller Separation claws 8 Remove the E ring and pull the separation claw shaft out to remove the claws 9 Clean or replace the heat roller and or its separation claws 10 Refit all the removed parts Wh
163. ected solenoid turns on Press the stop clear key The drive motor and de veloping bias turn off 3 2 8 Description 1AF Remarks Setting the folio size 1 Enter 14 with the numeric keys 2 Press the print key The current setting appears on the copy quantity display 3 Change the setting with the zoom up down keys Contents Setting range Initial value Folio length 330 to 356 mm 330mm 4 Press the print key The new setting is stored 5 Press the stop clear key Checking for skewed paper feed with test copies Enter 16 with the numeric keys Press the print key Select the maximum size of copy paper Open the original holder Press the print key A test copy is made with the two end blank lamps off Normal Copy example Copy example B Figure 3 2 2 If the test copy looks like example A adjust the position of the drawer cover see page 3 3 10 If it looks like example B the paper conveying sys tem has a problem 6 Press the stop clear key Check for me chanical distor tion or a position ing error in the drum and paper conveying sys tem 3 2 9 1AF Description Remarks Turning the halogen lamp on Enter 20 with the numeric keys Press the print key Select manual or photo mode and set the copy den sity Exp Press the print key The halogen lamp lights at the selected intensity for 10 s at maximum and t
164. ely Paper jams curled Change the paper Check if the front claws inside the paper drawer are deformed Remedy if deformed Check if the springs in the paper drawer are deformed Remedy if deformed Check if the press roller is extremely dirty or deformed Clean or replace the press roller see page 3 3 62 Check if the press roller separation claws are extremely dirty or de formed Clean or replace the press roller separation claws see page 3 3 62 Check if the heat roller separation claws are extremely dirty or de formed 3 6 38 Clean or replace the heat roller separation claws Problem Causes check procedures 1AF Corrective measures 7 Toner drops on the paper conveying path Check if the developing unit is ex tremely dirty Clean the developing unit 8 Abnormal noise is heard Check if the rollers and gears oper ate smoothly Grease the bushings and gears Check if the paper feed bypass and registration solenoids are installed correctly Remedy 3 6 39 1AF CONTENTS 3 7 Appendixes Timing chart NO T niece eret beendet 3 7 1 Timing chart NO 2 tee tne a ce dee Lee pets 3 7 2 Timing chart No 3 Composite PCB 1 3 Composite PCB 2 3 3 7 5 Composite POB 3 cie da etn 3 7 6 Operation unit PGB ede eee EE 3 7 7 Main PCB General connecti
165. emperature Standby low temperature During copying normal tem perature During copying low tempera ture At the start of copying normal temperature At the start of copying low temperature 175 177 C 175 C 170 to 200 C 170 to 200 C 170 to 200 C 170 to 200 C 177 C 170 to 200 C 175 C 170 to 200 C 182 C 1 Normal temperature external temperature of 20 C 68 F or above 2 Low temperature external temperature below 20 C 68 F 5 Press the print key The new setting is stored 6 Press the stop clear key Setting the fixing preheat temperature 1 Enter 47 with the numeric keys 2 Press the print key The current setting appears on the copy quantity display 3 Change the setting with the zoom up down keys Set the fixing control tempera ture during preheat mode Contents Setting range Reference Fixing control temperature during preheat mode 100 to 170 C 100 C 4 Press the print key The new setting is stored 5 Press the stop clear key 3 2 15 1AF Description Remarks Lighting all the indicators on the operation panel 1 Enter 50 with the numeric keys Press the print key All the indicators on the opera tion panel light 3 Press the stop clear key All the indicators turn off Check the indica tors on the op eration panel Adjusting ADF leading edge registra
166. en refitting the heat roller separation claws ensure that their tips are not overriding the fixing unit upper guide Fixing unit upper guide Separation claw spring Heat roller separation claw E ring Figure 3 3 66 Detaching the heat roller separation claw 3 3 65 1AF 7 Detaching and refitting the lower eject roller Clean or replace the lower eject roller as follows Procedure 1 2 3 Open the eject cover Remove the E ring and bushing from the front of the lower eject roller Remove the two E rings eject gear 22 spring pin and bushing from the rear of the lower eject roller Remove the lower eject roller from the eject cover Clean or replace the lower eject roller Refit all the removed parts E ring Spring pin o Eject gear 22 7 Bushing Lower eject roller Eject cover Figure 3 3 67 Detaching the lower eject roller 3 3 66 1AF 3 3 10 Others 1 Replacing the ozone filter Replace the ozone filter as follows Procedure 1 Detach the left cover 2 Replace the ozone filter with a new one 3 Refit all the removed parts Ozone exhaust fan motor Ozone filter Figure 3 3 68 Detaching the ozone filter 3 3 67 1AF CONTENTS 3 4 PCB Initial Settings 3 4 1 Replacing the main 4 440000 3 4 1 3 4 2 Adjustment free variable resistors VR 3 4 4
167. er charging 4 All blank lamps on 5 Developing section not driven Check procedures corrective measures No original present Place an original in the correct position No main charging Leaking main charger housing The connector ter minals of the high voltage transformer PCB make poor contact Defective high voltage transformer PCB Check for continuity across the terminals If none replace Run simulation 32 and check if CN1 21 on the main PCB goes low or check if the correct control voltage is applied to CN1 25 If not replace the main PCB If main charging does not take place during simulation 32 after the main PCB has been found to be normal replace the high voltage transformer PCB No transfer charging A Broken transfer charger wire Leaking transfer charger housing The connector termi nals of the high voltage transformer PCB make poor contact Defective high voltage transformer PCB 8 6 4 Check for continuity across the terminals If none replace Run simulation 31 and check if CN1 22 on the main PCB goes low or check if the correct control voltage is applied to CN1 26 If not replace the main PCB If transfer charging does not take place during simulation 31 after the main PCB has been found to be normal replace the high voltage transformer PCB Causes 1AF Check procedures corrective measures 4 All blank lamps on Run si
168. er level sensor TLDS Vibration shaft Hopper paddle B Toner level sensor TLDS Magnet Hopper housing Figure 1 3 28 Toner level detection The toner level sensor TLDS is a magnetic proximity sensor which is turned on by the magnet on hopper paddle B moving close to it When the toner feed motor TFM is turned on hopper paddle B vibrates up and down If the appropriate amount of toner is present in the toner hopper the paddle moves slowly resulting in a shorter on time of the toner level sensor TLDS As the toner in the hopper is consumed the paddle moves faster increasing the sensor s on time During toner replenishing the toner empty condition is detected and the add toner indicator lights up when the toner level sensor TLDS has stayed on 800 ms or longer three times successively With the add toner indicator on the available copy mode and the number of copies that can be made are restricted as set in simulation 91 see page 3 2 31 1 3 30 1AF 5 Transfer and separation section Separation guide Separation pulley Drum separation claws Tungsten wires Transfer charger assembly Figure 1 3 29 Transfer and separation section The transfer and separation section consists of the transfer charger assembly and drum Separation claws The transfer charger assembly consists of the transfer charger which applies a high voltage totransferthe tonerimage fromthe drum surface ontot
169. et key Press the print key to make a test copy Press the print key The new setting is stored Is the image abnormally light Decrease the setting with the zoom down key Is the image abnormally dark Increase the setting with the zoom up key Press the stop clear key Setting range 102 to 243 Reference 155 Increasing the value makes the image lighter and decreasing it makes the image darker 3 3 33 1AF 9 Adjusting the auto exposure AE sensor reference value Procedure Check that exposure is correctly set in 8 Setting the exposure amount i Enter simulation mode Enter 22 with the numeric keys Press the print key 3 3 34 Select mode 1 with the paper select key Place ten sheets of A3 11 x 17 plain white paper on the contact glass Press the all clear reset key to prescan repeatedly Select mode 2 with the paper select key Y Place the NTC on the contact glass Y Press the all clear reset key to start prescanning RON Select mode 3 with the paper select key Y Place the NPTC on the contact glass Y Press the all clear reset key to start prescanning Lm Press the stop clear key Y Exit simulation mode End 1AF 10 Adjusting lateral magnification c
170. ew counterclockwise wb Is the copy image correct Mirrors 4 amp 5 frame Adjustment screw Figure 3 3 33 Adjusting lateral image squareness 3 3 27 1AF 7 Adjusting longitudinal image squareness height of mirror 2 Make the following adjustment after replacing the scanner wires or if the copy image is longitudinally skewed longitudinal squareness is not obtained Important To adjust longitudinal image squareness first adjust the levelling bolts and if the problem persists only then adjust the height of mirror 2 Procedure Adjusting the levelling bolts Make a test copy at 100 with the maximum size of copy paper Remedy the sloping paper conveying path by turning the two leveling bolts under the right side of the machine Is the copy image correct o gt Levelling d Figure 3 3 34 Adjusting the levelling bolts 3 3 28 1AF Adjusting the height of mirror 2 Make a test copy at 100 with the maximum size of copy paper Adjust the height of mirror 2 by turning its adjustment screw For example 1 turn the adjustment screw counterclockwise 5 gt For example 2 turn the adjustment screw clockwise Is the copy image correct
171. ew setting is stored 5 Press the stop clear key 3 2 17 1AF Description Remarks Initializing the backup memory To be run after replacing the NVRAM on the Press the print key main PCB or if Press the all clear reset key The following data backup data has memory is initialized been erased due to a problem with the NVRAM Enter 70 with the numeric keys Sim Contents Initial data No ADF operation without originals 05 Folio size 14 Auto exposure 22 Prescan exposure amount NTC level NPTC level Exposure amount Exp 1 Exp 4 Exp 7 Exp 7 1 Photo mode Exp 4 Lateral magnification 100 copy Enlargement copy Reduction copy Longitudinal magnification Leading edge registration timing 100 copy Enlargement copy Reduction copy Lens unit rank Enlargement reduction mode exposure amount Enlargement copy Reduction copy Transfer voltage 3 2 18 Description 1AF Remarks Contents Initial data Sim No Drum potential Normal mode Grid control value Main charging control value Photo mode Grid control value Main charging control value Fixing temperature Standby normal temp Standby low temp Copying normal temp Copying low temp Start of copying normal temp Start of copying low temp Fixing preheat temperature ADF leading edge registration timing Leading edge margin 100 copy Enlargemen
172. f copies made with the current devel oper If it has reached the specified limit replace the devel oper 3 Misadjusted develop ing section Adjust the developing section see page 3 3 46 4 Dirty or deteriorated drum 4 Background is visible Clean the drum or if the maintenance level has been reached replace it see page 3 3 40 Causes 1 Dirty optical section 2 Deteriorated developer Causes Check procedures corrective measures 1 Dirty optical section Clean the light adjusters mirrors and other parts in the optical section 2 Deteriorated devel oper Check the number of copies made with the current devel oper If it has reached the specified limit replace the devel oper 3 6 6 5 A white line appears longitudinally Causes 1AF Causes 1 Dirty or flawed main charger wire 2 Foreign matter in the developing section 3 Flawed drum Check procedures corrective measures 1 Dirty or flawed main charger wire Clean the main charger wire If the wire is flawed replace it 2 Foreign matter in the developing section Check if the magnetic brush is formed uniformly If not replace the developer 3 Flawed drum 6 A black line appears longitudinally Causes Replace the drum see page 3 3 40 Causes 1 Dirty optical section 2 Dirty or flawed drum 3 Deformed or worn
173. feed operation time the following operations are carried out according to the state of the toner level sensor A When the toner level sensor detects that there is no toner remaining After the forced feed operation time ends the add toner indicator lights B When the toner level sensor does not detect that there is no toner remaining The forced feed operation is continued for an extra period of no more than three minutes If the toner sensor output voltage does not return to the toner empty end level within the additional forced feed operation time after the end of the additional forced feed operation time the add toner indicator lights If the toner sensor output voltage falls to the toner empty end level within the additional forced feed operation time the copier retums to the ready state and intermittent feed operations 3 minutes max are carried out until the toner sensor output voltage drops to the toner feed motor off level Toner sensor output voltage V Toner cartridge replacement AP detection level ERE 3 56 If forced feed does not lower the level the add toner indicator stays lit Toner empty end oh eros level 3 21 e 6min max i The add toner indicator turns Forced toner feed off and intermittent feed Toner feed motor continues 3 minutes max on level 2 72 until the toner feed motor Toner feed motor J N off level is reached off level 2 70
174. fer charger wire Check visually and replace the transfer charger wire if it is broken see page 3 3 49 Leaking transfer charger housing Poor contact in the high voltage trans former PCB con nector terminals Defective main PCB Defective high voltage trans former PCB See page 3 6 4 Problem Causes 1AF Check procedures corrective measures 19 Separation charging does not take place Broken separation charger wire Check visually and replace the separation charger wire if it is broken see page 3 3 49 Poor contact in the high voltage trans former PCB con nector terminals Check for continuity across the connector terminals If none replace them Defective high voltage trans former PCB Run simulation 31 and if separation charging does not take place while CN1 5 on the high voltage transformer PCB goes low re place the high voltage transformer PCB Defective main PCB Run simulation 31 and check if CN1 23 on the main PCB goes low If not replace the main PCB 20 No develop ing bias is output Poor contact in the developing bias wire Check the developing bias wire for poor con tact Poor contact in the high voltage trans former PCB con nector terminals Check for continuity across the connector terminals If none replace them Defective high voltage trans former PCB Run simulation 10 If no
175. fixing heater relay wire 2 pin connector of the fixing unit thermistor and 3 pin connector of the eject switch eee connector 1 pin connectors white and red 3 pin connector Figure 3 3 55 3 Open the front cover and turn the paper conveying section lever down 4 Remove the two screws holding the two fixing unit pins at the machine front and then remove the pins A i J an T por EE 3 LA 5 2 zx 222 Screws Fixing unit pins Figure 3 3 56 3 3 57 1AF 5 Open the eject cover and slide the fixing unit toward the machine front to free the unit from the pins holding it at the machine rear and take out the unit Fixing unit Eject cover Figure 3 3 57 Removing the fixing unit 6 Remove the two screws and fixing unit cover 7 Remove the 1 pin fixing heater connector from fixing unit thermostat 1 and free the heater wire from the wire holder 8 Remove the two screws and heater front and rear retainers 9 Pull the fixing heater out of the front of the fixing unit When handling the fixing heater touch only the ceramic parts 10 Replace the fixing heater 11 Refit all the removed parts eS Screws Fixing unit cover Screw Screw Heater front retainer Fixing unit thermostat 1 1 pin connector Figure 3 3 58 Detaching the fixing heater 3 3 58 1AF 2 Replacing the fixing unit thermistor Replace the fixing uni
176. g If it is dirty clean it Broken trans fer or separa tion charger wire Check the charger wires visually If either is broken replace it The transfer or separation charger leaks Check the transfer charger housing If it is dirty clean it Defective high voltage transformer PCB Detach the main or transfer charger assembly if C50 persists replace the high voltage transformer PCB Defective main PCB Replace the main PCB and check the operation Contents 1AF Remarks Causes Check procedures corrective measures Broken fixing heater fila ment The fixing stabilization temperature is not reached within 120 s after the main switch has been turned on The fixing temperature drops below 80 C 176 F after having reached the stabilization level Broken fixing heater fila ment Check for continuity If none replace the fixing heater Fixing heater installed in correctly Check the fixing heater and reinstall if necessary Fixing unit thermostat triggered Check for continuity If none replace the fixing unit ther mostat Fixing unit thermistor installed in correctly Check the fixing unit thermo stat and reinstall if neces sary Defective main PCB Replace the main PCB and check the operation Broken fixing unit ther mistor wire The fixing unit thermistor output voltage does not change within 7 s
177. g the charger wire Caution Do not use organic solvents such as alcohol or thinner to clean the main charger shield Procedure 1 Open the front cover and take the image formation unit out of the copier 2 Twist the main charger up and slide it toward the rear off the image formation unit Main charger Figure 3 3 20 Detaching the main charger 3 3 17 1AF 3 Remove the screw and grid tension plate then the main charger grid 4 Remove the main charger front and rear lids 5 Remove the charger wire retainer pin and charger spring then the charger wire Main charger grid Main charger rear lid Charger spring Main charger front MS Charger wire retainer pin Screw p Grid tension plate Figure 3 3 21 Removing the charger wire Wind the new tungsten wire at least five turns around one end of the charger spring and trim the end of the wire The length of the twists and the cut wire must be less than 2 mm Hookthe other end of the charger spring to the charger terminal of the main charger rear housing Run the wire through the notch in the charger wire retainer pin and pull it tight so that the distance from the end of the charger spring to the notch in the main charger rear housing is between 2 and 4 mm Insert the retainer pin into the projection of the main charger front housing to fix the charger wire Cut off the excess wire under the retainer pin so less than 2 mm protru
178. h the numeric keys Setting Counting method 0 A3 11 x 17 copies are counted as doubles 1 All sizes of copies are counted as singles 4 Press the print key 5 Press the stop clear key Setting initial exposure mode Select the initial Enter 81 with the numeric keys exposure mode Press the print key The current setting appears on the copy quantity display Select the initial exposure mode with the zoom up down keys Setting Initial exposure mode 0 Auto exposure 1 Manual exposure Exp 4 Press the print key Press the stop clear key 3 2 27 1AF Description Remarks keys Selecting between manual auto modes Enter 82 with the numeric keys Press the print key The current setting appears on the copy quantity display Selectthe initial copy mode with the zoom up down Setting Initial copy mode 0 1 Auto mode Manual mode 4 Press the print key 5 Press the stop clear key Select the initial copy mode keys Selecting the exposure scale Enter 83 with the numeric keys Press the print key The current setting appears on the copy quantity display Select the exposure scale with the zoom up down Setting Exposure scale 0 1 25 steps 19 steps 3 2 28 Press the print key 5 Press the stop clear key Select the expo sure scale for manual exposure mo
179. he opti cal section fan motor operates at the same time Pressing the stop clear key turns the halogen lamp off 5 Press the stop clear key Check halogen lamp operation Checking scanning operation Enter 21 with the numeric keys Press the print key Select the magnification ratio with the zoom up down keys Select the original size with the original select key Press the print key The lens and mirrors 4 amp 5 move to the positions for the selected magnification ratio and the scanner repeats scanning at a width and speed depending on the selected original size and magnification ratio 6 Press the stop clear key The scanner stops 7 Press the stop clear key Check the scan ner operation by running it at an arbitrary magnifi cation ratio 3 2 10 Adjusting the auto exposure reference value See page 3 3 34 Description 1AF Remarks Turning the lens motor on 1 Enter 23 with the numeric keys Press the print key 3 Select the magnification ratio with the zoom up down keys Press the print key The lens and mirrors 4 amp 5 move to the positions for the selected magnification ratio Press the all clear reset key The lens and mirrors 4 amp 5 cycle through the following magnification ratios 100 86 70 64 T 141 lt 122 lt 115 lt 100 Press the stop clear key The lens and mirrors 4 amp 5 stop Setting the exposure amount
180. he paper andthe separation charger that helps the paper separate from the drum surface In the transfer charger a high voltage generated by the high voltage transformer PCB HVTPCB is applied across both ends of the tungsten wire for transfer charging The separation charger uses the AC voltage applied from the high voltage transformer PCB to neutralize the residual charge on the paper after transfer The paper can then separate from the drum under its own weight The drum separation claws ensure the paper separates from the drum reliably 1 3 31 Figure 1 3 30 Transfer charger assembly CD Transfer charger front housing 2 Transfer charger rear housing 3 Transfer charger front lid 4 Transfer charger rear lid 5 Transfer charger shield 6 Separation guide 24V DC Tungsten wire for transfer Tungsten wire for separation Charger springs Charger terminals Charger wire retainer pins CPCB TC REM TC CONT SCREM ALARM CN1 22 CN1 26 CN1 23 CN1 27 CN1 6 CN2 1 CN1 2 1 5 CN1 1 5 TC HVTPCB MPCB Figure 1 3 31 Transfer and separation section block diagram 1 3 32 1AF Secondary paper feed start Print key HPSW MENU C RSW SM PFSOL lt 147 140 ms 100 ms RSOL 4 220 ms TC REM 200 ms SC REM 1 Varies depending on the setting by simulation 27 Timing chart
181. hine does not operate when the main switch is turned Om oie eese erbe tiet dd 3 6 30 2 The drive motor does not operate C20 3 6 30 8 The scanner motor does not operate C30 3 6 30 4 The lens motor does not operate C40 3 6 31 5 The toner feed motor does not operate 3 6 31 6 The optical section fan motor does not operate 3 6 31 7 The internal cooling fan motor does not operate at all or does not turn at full speed sess 3 6 31 8 The ozone exhaust fan motor does not operate at all or does not turn at full speed 3 6 32 9 The paper feed solenoid does not operate 3 6 32 10 The bypass solenoid does not operate 3 6 32 11 The registration solenoid does not operate 3 6 32 12 The halogen lamp does not light 3 6 33 13 The halogen lamp does not turn 3 6 33 14 The cleaning lamp does not light 3 6 33 15 The fixing heater does not turn on C61 C63 3 6 33 16 The fixing heater does not turn off fixing unit thermostat 1 or 2 triggered COA eoi euenire 3 6 34 17 Main charging does not take 3 6 34 18 Transfer charging does not take place
182. if necessary 3 6 3 PCB terminal voltages Precautions 1AF When handling the circuit boards do not touch the components with bare hands Cs can be damaged by static discharges If a PCB contains ICs do not touch the ICs cable connectors or edge connectors Store the circuit boards wrapped in aluminum foil conductive sponge rubber or similar material 1 Composite PCB Mita K5113 125V 15 250 T CAUTION E2 T25V 15A 250V 8A LUG 4 1501A a E E CAUTION CREO 28 z OO OOO z E 2 8 1001 E o9 E Co ee 20048 ix Cos 2 125 C s l ee E qq T NIC 5 D ORO in 125 RIS S or 3 6 19 1AF Terminals CN Voltage Remarks T1 T2 1 1
183. ing bias turn on performing toner density control on the developer Press the stop clear key The operation stops Check the drive and paper con veying system operations 3 2 7 1AF Description Remarks Checking switch operation Check operations Enter 11 with the numeric keys of switches on the paper con veying and opti Press the all clear reset key Test copy mode is cal systems entered Press the print key Select the paper source with the paper select key Press the print key The copying operation starts and the paper size indicators turn on and off in se quence showing the status of the individual switches Paper size indicator Switch name Remarks 11 x 17 Registration switch Each indicator lights A4R 81 2 x 14 Eject switch when the switch it A5R 81 2 x 11R Home position switch represents is turned 4 51 2 x 81 2R Lens home position switch on B4 11 x 81 2 Toner level sensor 6 Enter 10871087 with the numeric keys The copier exits test copy mode and reenters simulation mode Checking solenoid operation Check solenoid Enter 12 with the numeric keys operation with the machine Press the print key The drive motor and developing griven bias turn on Select the solenoid to be operated with the paper select key Mode Solenoid 1 Bypass solenoid 2 Paper feed solenoid 3 Registration solenoid Press the print key The sel
184. ing circuit turns FET Q101 on and off via switching control IC1 turning current to the primary coil of switching transformer TRNS on andoff The 24 V DC smoothing output circuit converts the current induced in the secondary coil of TRNS into a stable 24 V DC output via diode D201 and smoothing capacitors C201 and C207 The 5 V DC smoothing output circuit converts the 24 V DC output from the 24 V DC smoothing output circuit into a stable 5 V DC using regulator IC3 Switching control IC1 regulates the 24 V DC supply by controlling the switching operation of FET Q101 depending on the signal fed back by the output feedback circuit via photocoupler PC1 If an overvoltage occurs on the 24 V or 5 V DC output the output feedback circuit sends that information to switching control IC1 via photocoupler PC2 inhibiting IC1 AVR circuit section The AVR circuit section consists of the PWM signal voltage converter circuit a halogen lamp control subsection with the halogen lamp light intensity control IC HIC and a switching subsection with thyristors TH601 and TH602 that turn the fixing heater and halogen lamp HL on and off Control signal H REM from the main PCB turns photocoupler PC4 on when low This allows current to flow from transistor Q602 to photocoupler PT1 turning PT1 on which applies a trigger voltage to the gate of thyristor TH602 causing it to conduct and allow current to flow to fixing heater H to turn on Transistor Q602 is turned
185. ing is broken shorted or makes poor contact Check for continuity If none repair Noise Locate the source of noise and remove 3 6 37 1AF 3 6 5 Mechanical problems Problem Causes check procedures Corrective measures 1 Check if the surfaces of paper feed No primary pulleys A amp B and the bypass upper paper feed pulley are dirty with paper powder Clean with isopropyl alco hol Electrical problem with the paper feed or bypass solenoid See page 3 6 32 2 Check if the surfaces of the upper amp No secondary lower registration rollers and upper paper feed amp lower pre transfer rollers are dirty with paper powder Clean with isopropyl alco hol Electrical problem with the registra tion solenoid See page 3 6 32 3 Check if the front claws inside the Skewed pa paper drawer are deformed Remedy if deformed er feed Check if the springs inside the paper drawer are deformed Remedy or replace if de formed 4 Check if the scanner wires are The scanner loose Reinstall the scanner wires see page 3 3 23 does not travel Electrical problem with the scanner motor See page 3 6 30 5 Check if the front claws inside the Multiple paper drawer are deformed Remedy if deformed sheets of pa per are fed at one time Check if the paper is curled Change the paper 6 Check if the paper is excessiv
186. l by about 2 V The larger the value the darker the image the smaller the value the lighter the image 3 3 44 1AF Adjust for another mode No Y Press the stop clear key Y Exit simulation mode SF End 3 3 45 1AF 3 3 6 Developing section 1 Adjusting the position of the magnetic brush developing roller reference Check or adjust the position of the magnetic brush if the image is abnormally light Important Before starting this adjustment ensure that the doctor blade is installed correctly and that the correct amount of developer is present Procedure 1 Take the image formation unit out of the copier 2 Remove the 1 developing bias connector from the magnet roller retainer on the back of the developing unit 3 Loosen the screw holding the magnet roller retainer 4 Adjust the magnet roller retainer right and left until the distance between the top of the magnetic brush and the bottom of the developing unit housing is 18 mm reference using a scale for accurate measurement e f the distance is smaller than the specified value carrier appears on the copy image If itis larger a background appears 5 After adjustment make a test copy to check for performance Magnet roller shaft 1 pin connector Magnet roller retainer uar FOO OB Figure 3 3 43 Adjusting the position of the magnetic brush 3 3 46 1AF
187. l squareness of the image see page 3 3 27 21 Image is partially missing laterally A Causes Causes 1 Registration solenoid incorrectly installed or malfunctioning 2 Paper feed solenoid incorrectly installed or malfunctioning Check procedures corrective measures Registration solenoid incorrectly installed or malfunctioning Check and correct the solenoid installation position and its operation 2 Paper feed solenoid incorrectly installed or malfunctioning Check and correct the solenoid installation alignment and its operation 3 6 15 1AF 3 6 2 Paper misfeeds Problem Causes check procedures Corrective measures 1 A paper jam in the registra tion section is detected as Soon as the main switch is turned J30 appears A piece of paper torn from copy paper is caught around the reg istration switch Check visually and remove it if any Defective registration switch With 5 V DC present at CN17 1 on the main PCB check if CN17 2 on the main PCB re mains low when the registration Switch is turned on and off If it does replace the registration Switch 2 A paper jam in the eject section is de tected as Soon as the main switch is turned 450 appears A piece of paper torn from copy paper is caught around the eject switch Check visually and remove it if any Defective eject switch With 5 V
188. lade 3 Cleaning lamp fails to light 4 Abnormally high heat roller control temperature Causes Check procedures corrective measures Cleaning blade install Check the installation position of the cleaning blade and ed in the wrong correct it if necessary position Defective cleaning Replace the cleaning blade see page 3 3 54 blade Cleaning lamp fails to The connector termi nals of the cleaning lamp make poor contact Defective main PCB Force CN13 2 on the main PCB to go low and check if the cleaning lamp lights If it does replace the main PCB Abnormally high heat Check if the fixing unit thermistor is installed correctly roller control tempera ture 3 6 12 15 Black lines appear on both sides of the image in reduction copies Causes 1AF Causes 1 Dirty blank lamps 2 Defective blank lamps 3 Defective main PCB Check procedures corrective measures 1 Dirty blank lamps Clean the blank lamps 2 Defective blank lamps Check for one way continuity across the terminals of each blank lamp If none replace the blank lamp unit 3 Defective main PCB 16 Image is partly missing Causes Check for signal level changes on the main PCB Replace the main PCB if necessary Causes 1 Paper damp 2 Paper creased 3 Drum condensation 4 Flawed drum Check procedures corrective measures
189. ley 15 Tension pulley 15 Gear 33 14 machine rear Developing gear 32 machine front Developing gear 23 Developing gear 30 Paper feed drive belt Tension pulley 15 Pulley 32 Gear 18 Idle gear 38 Bypass gear 38 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 Gear 30 18 Gear 25 Idle gear Idle gear 38 Paper feed gear 38 Pulley 14 Gear 20 Retard gear 18 Limiter gear 15 Gear 80 34 Fixing drive belt Pulley 30 Fixing drive gear 22 Heat roller gear 40 Eject idle gear 30 Eject gear 22 Scanner motor pulley Scanner drive pulley 1 Scanner drive pulley 2 Scanner drive belt 1 Scanner drive belt 2 Scanner wire drum Scanner wire Scanner wire pulley Scanner wire pulley 1AF As viewed from machine rear Figure 1 3 5 Drive system image formation unit 1 Blade thrust gear 31 5 Left spiral gear machine rear 2 Toner recycle gear 19 6 Developing gear 28 machine front 3 Magnet roller gear 17 7 Developing gear 31 machine front 4 Developing idle gear 19 1 3 5 1AF 1 3 4 Mechanical construction 1 Paper feed section Figure 1 3 6 Paper feed section D Bypass table Bypass lift Bypass upper pulley Bypass lower pulley Bypass lower guide 6 Drawer bottom plate Drawer spring Paper feed pulleys A and B 9 Uppe
190. lug Figure 3 1 22 7 Insert the 4 pin plug of the key counter socket into the 4 pin connector on the copier 3 1 17 1AF 8 Using the two screws removed in step 5 fit the key counter socket to the copier 4 pin connector Screws Key counter socket 4 pin plug Figure 3 1 23 9 Refitthe upper and lower right covers front right cover front inner cover and left cover 10 Place the image formation unit back into the copier and close the front cover 11 Turn the main switch on and insert the key counter into the socket 12 Check that the counter counts up as copies are made 13 Check that the copy quantity display shows U1 when the key counter is pulled out 3 1 18 1AF 3 1 4 Installing the dehumidifier service part Dehumidifier installation requires the following parts Dehumidifier assembly P N 66027021 Dehumidifier junction wire P N 34968010 ON label P N 34860010 OFF label P N 34860020 Two bronze binding screws M3 x 5 P N B1303050 1 Only where required by regulations Procedure 1 Remove the power plug from the wall outlet Remove the bypass rear right upper and right front covers Remove the original holder Remove the paper drawer Open the front cover and remove the image formation unit from the copier Place the copier on its left side Remove the six screws and the base center reinforcement
191. moved have been refitted correctly Special attention should be paid to any forgotten connector trapped wire and Q EREN E A RE T EAA T e Check that all the caution labels that should be present on the machine according to the instruction handbook are clean and not peeling Replace with new ones if necessary Handle greases and solvents with care by following the instructions Q H Use only small amount of solvent at a time being careful not to spill Wipe spills off completely Ventilate the room well while using grease or solvents Allow applied solvents to evaporate completely before refitting the covers or turning the main switch on Always wash hands afterwards Never dispose of toner or toner bottles in fire Toner may cause Q sparks when exposed directly to fire in a furnace etc Should smoke be seen coming from the copier remove the power plug from the wall outlet immediately 3 Miscellaneous A WARNING Never attempt to heat the drum or expose it to any organic solvents such as alcohol other than the specified refiner it may generate toxic Q 1AF CONTENTS THEORY AND CONSTRUCTION SECTION 1 1 Specifications 1 1 1 Specifications 2050 1 1 2 Specifications DC 1560 1 2 Handling Precautions 1
192. mperature is changed as follows during environmental mode or depending on the status of the copier Environmental mode 1 Low temperature mode The external temperature is below 20 C 68 F 2 Normal temperature mode The external temperature is 20 C 68 F or above Copier s status 1 Standby 2 Start of copying from the start of copying to the 10th copy count 3 During copying 11th copy count and after Table 1 3 3 Fixing control temperature Copier s status Standby Start of copying Copying Environmental Low temp 185 C 356 F 190 C 383 F 185 C 356 F mode Normal temp 175 C 347 F 175 C 347 F 175 C 347 F Fixing temperature control in preheat energy saving mode During preheat energy saving mode the fixing heater H is turned on and off to keep the fixing temperature at 100 C 212 F Operation after the preheat energy saving mode is exited depends on the temperature mode If the copier is in normal temperature mode copying is enabled when the fixing temperature reaches 170 C 338 F without performing stabilization drive control In low temperature mode stabilization drive control takes place and copying is enabled when the fixing temperature reaches 185 C 356 F The fixing control temperature during preheat energy saving mode can be changed in simulation 47 1 3 41 1AF Paper separation Paper is separated in the fixing section by the separation claws as
193. mulation 42 and if the check pattern copy is not obtained replace the main PCB 5 Developing section not driven 2 No image entirely black Causes Check the gears driving the developing section and replace any broken gears Causes 1 Broken halogen lamp filament 2 Halogen lamp fails to light Check procedures corrective measures Broken halogen lamp filament Take the halogen lamp out of the unit and check for conti nuity across the terminals If none replace it see page Halogen lamp fails to The optical section thermostat is trig The connector termi nals of the composite PCB make poor contact Defective composite PCB Check for continuity If none replace the thermostat after determining the cause Check for continuity across the terminals If none replace Run simulation 20 and check if CN4 5 on the main PCB remains high If it does replace the main PCB If the halogen lamp does not light during simulation 20 after the main PCB has been found to be normal replace the composite PCB 3 6 5 1AF 8 Image is too light Causes Causes 1 Insufficient toner 2 Deteriorated developer 3 Misadjusted developing section 4 Dirty or deteriorated drum Check procedures corrective measures 1 Insufficient toner If the add toner indicator is on replace the cartridge 2 Deteriorated devel oper Check the number o
194. nd 3 3 2 1AF 3 3 2 Paper feed section 1 Detaching and refitting paper feed pulleys A and B Clean or replace paper feed pulley A or B as follows Procedure 1 Detach the rear cover 2 Inserta straight screwdriver through the gap below the right side of the composite PCB and hold the paper feed solenoid on Turn the drive motor counterclockwise by hand drawer paper feed shaft A turns to an angle where the paper feed pulleys can be easily removed Drawer paper ite PCB Composite PCB fed shaft A Paper feed solenoid Figure 3 3 1 3 Remove the original holder 4 Remove the paper drawer and bypass cover 5 Open the front cover and take the image formation unit out of the copier 6 Place the copier on its left side as shown below Figure 3 3 2 3 3 3 1AF Removing paper feed pulley A 7 Remove the screw and paper feed pulley A from drawer paper feed shaft A Removing paper feed pulley B 8 Remove the screw and paper feed pulley B from drawer paper feed shaft A 9 Clean or replace paper feed pulley A and or B When refitting paper feed pulley A and B orient them with their white surfaces toward the machine front 10 Refit all the removed parts Paper feed pulley A Paper feed pulley B White surfaces toward the machine front Figure 3 3 3 Detaching paper feed pulleys A and B 3 3 4 1AF 2 Detaching and
195. ng check the temperature indications on the thermostats and install the thermostats on the fixing unit housing in the correct positions 5 Refit all the removed parts Screws Screws Fixing unit thermostat 2 Fixing heater relay wire Fixing unit thermostat 1 Fixing heater wire Figure 3 3 61 Detaching the fixing unit thermostats 3 3 61 1AF 5 Detaching and refitting the press roller and its separation claws Clean or replace the press roller and or its separation claws as follows Procedure 1 Unlock the fixing unit at the front and rear by pulling the press levers in the directions of the arrows in the diagram and open the unit 0 0 Fixing unit press levers Og Figure 3 3 62 2 Remove the stopper screw on the fixing unit front frame and open the fixing unit front guide Fixing unit front guide oe Fixing unit front frame Figure 3 3 63 3 3 62 1AF Removing the press roller 3 Remove the two press roller bushings and the roller from the fixing unit Removing the press roller separation claws 4 Remove the screws and press roller separation claws 5 Clean or replace the press roller and or its separation claws e When refitting the press roller separation claws ensure the slot is on the machine rear and the projections of the claw mount are seated in the hole and slot of each claw as shown in the diagram 6 Refit all the removed parts e When refitting th
196. ng chart 1 3 1 Paper feed from the paper drawer amp When the print key is pressed the paper feed solenoid PFSOL turns on for 250 ms rotating paper feed pulleys A and B to perform primary feed Then the paper is fed by the upper and lower registration rollers and its leading edge stops at the registration stopper to create slack in the paper before registration The leading edge of the paper turns the registration switch RSW on C The scanner starts scanning and the home position switch HPSW turns off After 147 pulses 140 ms the registration solenoid RSOL turns on and the registration stopper lowers The lower registration and pre transfer rollers convey the paper to start secondary feed 100 ms after the trailing edge has turned the registration switch RSW off the registration solenoid RSOL turns off to complete secondary paper feed 1 3 8 1AF 1 2 Paper feed from the bypass table The bypass table can hold up to 50 sheets of paper at one time When the print key is pressed the bypass solenoid BYPSOL turns on rotating the bypass upper pulley while the bypass lift is raised until the paper comes into contact with the bypass upper pulley The paper on the bypass table is then conveyed to the secondary paper feed section The bypass lower pulley rotates opposite to the paper feed direction so that the torque limiter prevents multiple sheets from being fed at one time Prescan start Print key HPSW R
197. nt Do not substitute a simple wire or similar otherwise the copier will be seriously damaged Procedure 1 Remove the left cover 2 Unplug the two 1 pin connectors of the optical section thermostat 3 Remove the two screws and optical section thermostat 4 Fit a new thermostat 5 Refit all the removed parts 1 pin connector AS FENN B 1 connector SS Optical section ET Figure 3 3 25 Detaching the optical section thermostat Screws 3 3 21 1AF 3 Adjusting the positions of the light adjusters Perform the following adjustment after refitting or replacing the light adjusters or if the copy image is abnormally light or dark on one side Before starting this adjustment be sure that the main and transfer chargers mirrors and dust filter are not stained with toner Procedure Make a test copy at 100 with the maximum size of copy paper Adjust the positions of the light adjusters Is the copy image correct For example if the copy image is not correct on the machine front adjust the light adjuster on the machine rear Light adjusters Figure 3 3 26 Adjusting the positions of the light adjusters 3 3 22 1AF 4 Detaching and refitting the scanner wire Take the following steps when a scanner wire is broken or to be replaced Important After replacing a scanner wire proceed to 5 Adjusting focus lens unit 4 1 Detaching the scanner wires
198. ntinuity with numeric key 2 K11 pressed no continuity with the key released Continuity with numeric key 1 K10 pressed no continuity with the key released Continuity with numeric key O K19 pressed no continuity with the key released 3 6 29 1AF 3 6 4 Electrical problems Problem Causes Check procedures corrective measures 1 The machine does not op erate when the main Switch is turned on No electricity at the power outlet Measure the input voltage The power cord is not plugged in properly Check the contact between the power plug and the outlet The front cover is not closed com pletely Check the front cover Broken power cord Check for continuity If none replace the cord Defective main Switch Check for continuity across the contacts If none replace the main switch Blown fuse in the composite PCB Check for continuity If none remove the cause of blowing and replace the fuse Defective safety Switch 1 Check for continuity across the contacts of safety switch 1 If none replace the switch Defective compos ite PCB With AC present check for 24 V DC at CN2 2 on the composite PCB and 5 V DC at CN2 3 If none replace the composite PCB 2 The drive mo tor does not operate C20 Poor contact in the drive motor con nector terminals Check for continuity across the connector terminals If none
199. ntinuity with segment a of the 10s digit 7 seg LED li 1 1 Continuity with original size indicator L9 lit 1 2 Continuity with segment g of the 1s digit 7 seg LED lit 1 3 Continuity with segment f of the 1s digit 7 seg LED lit 1 4 Continuity with segment e of the 1s digit 7 seg LED lit 1 5 Continuity with segment d of the 1s digit 7 seg LED lit 1 6 Continuity with segment c of the 1s digit 7 seg LED lit 1 7 Continuity with segment b of the 1s digit 7 seg LED lit 1 8 Continuity with segment a of the 1s digit 7 seg LED lit 1 1 Continuity with original size indicator L8 lit 1 2 Continuity with original size indicator L7 lit L6 lit L5 lit 1 5 Continuity with original size indicator L4 lit 1 3 Continuity with original size indicator 1 4 Continuity with original size indicator 1 Metric models only 3 6 27 1AF Terminals CN Remarks lit lit lit 1 lit 1 lit 1 lit lit lit 1 6 2 7 Continuity with original size indicator L3 1 7 Continuity with original size indicator L2 5 1 8 Continuity with original size indicator L N I o D 1 1 Continuity with paper size indicator L1 L16 L15 L14 113 L12 lit L11 lit 1 8 Continuity with paper size indicator L10 lit 1 1 Continuity with ADF jam indicator L18 lit 1 2 Continuity with zoom copy indicator L25 lit 1 2 Continuity with paper size indicator 1 3 Continuity with paper size indicator 1 4 Contin
200. nts Factory setting Selecting between double single counts Double Setting initial exposure mode Inch manual Exp 4 Metric auto Selecting between manual auto modes Auto Selecting the exposure scale 19 steps Setting the auto clear time 90s Setting the auto preheat time 15 min Setting the auto shutoff time 30 min Setting the maximum preset number of copies 100 copies Setting operation under the toner empty condition No of copies that can be made Copy mode Unlimited Single copies 92 Selecting between auto start on off On 98 Setting the optical section fan motor control Normal User setting 3 1 16 Drawer paper size setting Inch 11 x 81 2 Metric A4 1AF 3 1 3 Installing the key counter option Key counter installation requires the following part Key counter socket assembly P N 41529210 Procedure 1 Detach the left cover 2 Cut out the indicated area in the left cover using nippers Left cover Key counter entrance n i Figure 3 1 21 3 Open the front cover and take the image formation unit out of the copier 4 Remove the upper and lower right covers front right cover and front inner cover 5 Remove the two screws and the plate 6 Remove the shorting plug from the 4 pin connector on the copier 4 pin connector Screws Plate Shorting p
201. on by the zero crossing signal from the halogen lamp light intensity control IC HIC so thyristor TH602 conducts and the current flows to the fixing heater every time 0 V is crossed The halogen lamp light intensity is controlled by control signal HL CONT from the main PCB HL CONT is a PWM signal turned on and off at a duty ratio set by the halogen lamp light intensity data This signal is converted into a voltage by the PWM signal voltage converter circuit and is output to the halogen lamp light intensity control IC HIC This adjusts the phase of the photocoupler PT2 on timing based on the halogen lamp light intensity data converted into a voltage using an internal zero crossing signal as a reference When photocoupler 2 is turned on a trigger voltage is applied to the gate of thyristor TH601 changing the time that TH601 conducts This changes the level of the voltage applied to the halogen lamp terminals so regulating the halogen lamp light intensity 2 3 2 1AF 2 3 2 Main PCB MPCB Address bus Reset circuit Figure 2 3 2 PCB block diagram The main PCB MPCB consists of the CPU IC11 EPROM IC9 NVRAM IC3 and I O IC6 as major components Based on the control programs in EPROM IC9 and the data in NVRAM IC3 the CPU IC11 controls the overall copier system by exchanging input and output signals with the components connected to it directly or indirectly through I O IC6 via the address bus data bus and
202. on diagram sess 3 7 9 General wiring diagram aree eire eee 3 7 10 Timing chart No 1 With the fixing temperature at 100 212 or above when the main switch is turned on MSW on 210 ms From the main switch being turned on to copier stabilization Fixing stability temperature 170 C 338 F Fixing control temperature 175 C 347 F 1AF ICFM CN11 15 Full speed Half speed 1000 ms Copying is possible 1 s or more after the main switch has been turned on With the fixing temperature at 13 C 55 4 F or above but below 100 C 212 F and with the external temperature at 18 C 64 4 F or above when the main switch is turned on Fixing control temperature MSW on Fixing stability temperature 170 C 338 F 175 C 347 F 210 m ICFM CN11 15 1 4 Full speed Half speed 900 m 1000 ms Copying is possible 43 s or Under other conditions when abnormally low temperature is detected more after the main switch has been turned on Fixing control temperature MSW on Drive start tempera Fixing stability temperature ture 167 C 332 6 F 170 C 338 F 185 C 356 F 210 ms 1000 ms ICFM CN11 15 m Full speed Half speed 300 ms 10 s minimum Off when copying is possible DM 15 3 DB CN1 20 200 ms
203. on of the magnetic brush 1AF The developing roller consists of a magnet roller with five poles anda sleeve roller Rotation of the sleeve roller around the magnet roller entrains developer which in turn forms a magnetic brush at pole N1 on the magnet roller The height of the magnetic brush is regulated by the doctor blade the developing result is affected by the positions of the poles on the magnet roller and the position of the doctor blade A developing bias voltage generated by the high voltage transformer PCB HVTPCB is applied to the developing roller to provide image contrast Magnetic poles on the magnet roller 2 S1 A distance between the doctor blade and S2 developing roller 0 6 0 05 mm S3 6 RO 70 N1 60 S3 70 2 850 10 4 gt 50 10 600 10 4 gt 50 10 4 600 x 1074 50 x10 4T 600 x 1074 50 x104T 500 x 10 4 50 x104T Figure 1 3 21 Forming the magnetic brush Developing unit housing Doctor blade 2 Developing roller 5 Right developing spiral 8 Toner sensor TNS 6 Left developing spiral 1 3 23 1AF CN11 5 CN11 6 CN11 9 CN11 10 TLDS Developing bias Or TNS CN11 3 SiG CN11 1 TNS CONT CN1 20 DE REM gt CN1 8 MPCB HVTPCB Figure 1 3 22 Developing unit block diagram Toner density is detected by the toner sens
204. or TNS The sensor section of the toner sensor detects the ratio of toner to carrier in the developer near it and converts it into a voltage As more toner is used the ratio of toner to carrier decreases increasing the toner sensor output voltage When the ratio drops below the specified value the increase in toner sensor output voltage triggers toner replenishing When toner is added and the ratio of toner to carrier returns to normal the toner sensor output voltage drops to the point where toner replenishing stops 1 3 24 1AF Toner density control Toner density is controlled by switching the toner feed motor on off using as the reference the toner sensor output based on the toner sensor initial output value set when simulation 60 was executed when the developer was set The toner sensor output is also used for toner empty detection in the toner hopper On this device a magnetic proximity sensor toner level sensor TLDS is also used but the toner remaining amount is not detected until the toner empty state is detected from the toner sensor output voltage When no toner is detected by the TLDS the add toner indicator lights here Toner sensor AP blinks on the output voltage V copy quantity display AP detection level 3 56 If the level does not go down even after the additional forced toner Y feed the add toner indicator lights here Toner empty end level 3 21 Intermittent feed 3 minutes max
205. or down key changes the value by 15 Select 0 to cancel the auto shutoff function 4 Press the print key The new setting is stored 5 Press the stop clear key Setting the paper size Enter 88 with the numeric keys Press the print key The current setting appears on the copy quantity display Select the paper size with the zoom up down keys Setting Paper size 0 Folio 1 B5 Press the print key The new setting is stored 5 Press the stop clear key 3 2 30 Description 1AF Remarks Setting the maximum preset number of copies 1 Enter 89 with the numeric keys 2 Press the print key The current setting appears on the copy quantity display 3 Change the setting with the zoom up down keys Contents Setting range Initial value Maximum preset number of copies 1 to 250 copies 100 copies 4 Press the print key The new setting is stored 5 Press the stop clear key Set the maximum number of copies preset by the numeric keys Setting operation under the toner empty condition Enter 91 with the numeric keys Press the print key The current setting appears on the copy quantity display Select the mode to be changed with the paper se lect key Change the setting with the zoom up down keys Select the maxi mum number of copies and the copy mode that are possible un der the toner empty condition Mode
206. orrecting the lens position Make the following adjustment after replacing the lens unit or if the lateral magnification is not correct Procedure Enter simulation mode t Enter 25 with the numeric keys Press the print key Place the NTC on the contact glass and ensure A3 11 x 17 paper is present Select the mode to be adjusted dT copy with the paper key Mode 3 reduction copy Press the all clear reset key lt Press the print key t The new setting is stored Press the print key to make a test copy Is the copy image Change the setting with the laterally correct zoom up down keys Setting ranges 0 to 50 for 100 copy 0 to 40 for enlargement copy 0 to 40 for reduction copy Adjust for another mode References 25 for 100 copy 20 for enlargement copy 20 for reduction copy Press the stop clear key Exit simulation mode End 3 3 35 1AF 11 Adjusting longitudinal magnification scanning speed Procedure Y Enter simulation mode Y Enter 26 with the numeric keys Y Press the print key Y Place the NTC on the contact glass and ensure A3 11 x 17 paper is present Y Press the all clear reset key Press the print key Y Press the print key to make a test copy Is the copy image
207. oth to the drum and gently wipe the drum taking care not to damage the surface Apply toner to another cloth and wipe the drum surface with it in the same manner Refit the drum Refit all the removed parts and let the copier stand for 30 minutes Make a test copy and check the image TAN i ooh Polishing cloth Figure 3 3 42 Cleaning the drum 3 3 43 1AF 3 Adjusting the copy image after drum replacement reference Perform the following adjustment if the copy image density is still incorrect after making other adjustments Caution Do not change the settings for modes 2 and 4 in simulation 32 Procedure Make a test copy Yes Is the copy image correct No Enter simulation mode Enter 32 with the numeric keys Press the print key Exit simulation mode Select the mode to be adjusted with the paper select key Mode 1 normal mode grid control value Mode 3 photo mode grid control value Press the stop clear key Press the print key The new setting is stored Is the image abnormally light Increase the setting with the zoom up key Is the image abnormally dark Decrease the setting with the zoom down key Setting range 0 to 255 References 190 for normal mode 100 for photo mode Changing the value by one changes the drum potential grid potentia
208. out paper mode and returns to simulation mode Enabling ADF operation without originals Enter 05 with the numeric keys Press the print key The current setting appears on the copy quantity display Change the setting with the zoom up down keys Setting Operation 0 ADF normal operation 1 ADF operation without originals With 1 selected the ADF can be operated without originals independently for simulation during nor mal copy mode or simulation 06 3 2 6 Description 1AF Remarks 4 5 Press the print key The new setting is stored Press the stop clear key Checking ADF operation Enter 06 with the numeric keys Press the print key Press numeric key 0 1 or 2 to start ADF operation check Numeric key Operation 0 Feeding originals continuously 1 Feeding a single original 2 Ejecting originals 4 Press the stop clear key Check ADF op eration with or without originals Setting shipping defaults 4 Enter 09 with the numeric keys Press the print key Press the all clear reset key The lens in the lens unit moves to a position 752 pulses from its home position and light source unit 1 to a position 3552 pulses from its home position Turn the main switch off To be run before moving the ma chine Turning the drive motor on Enter 10 with the numeric keys Press the print key The drive motor and develop
209. ow If not replace the main PCB 15 The fixing heater does not turn on C61 C63 Broken fixing heater wire Check for continuity If none replace the fixing heater see page 3 3 57 Fixing unit thermo stat 1 or 2 trig gered Check for continuity across each thermostat If none remove the cause of blowing and replace the thermostat Broken fixing unit thermistor wire Measure the resistance If it is replace the fixing unit thermistor 3 6 33 1AF Problem Causes Check procedures corrective measures 16 The fixing heater does not turn off fixing unit thermostat 1 or 2 triggered C64 Dirty sensor part of the fixing unit ther mistor Check visually and clean the thermistor sen Sor parts Defective compos ite PCB If the fixing heater stays on with CN2 8 on the composite PCB high replace the com posite PCB Defective main PCB If CN4 6 on the main PCB is always low replace the main PCB 17 Main charging does not take place Broken main charger wire Check visually and replace the main charger wire if it is broken see page 3 3 17 Leaking main charger housing Poor contact in the high voltage trans former PCB con nector terminals Defective main PCB Defective high voltage trans former PCB See page 3 6 4 18 Transfer charging does not take place 3 6 34 Broken trans
210. r registration roller Lower registration roller Registration stopper 1 3 6 3 Upper pre transfer roller Lower pre transfer roller Registration guide 9 Upper pre transfer guide Bypass solenoid BYPSOL Paper feed solenoid PFSOL Registration solenoid RSOL Bypass paper length switch BYPPLSW 69 Bypass paper width switch BYPPWSW 6 Registration switch RSW 1AF The paper feed section consists of the primary feed and secondary feed subsections Primary feed conveys paper from the paper drawer or the bypass table to the upper and lower registration rollers at which point secondary paper feed takes place and the paper travels to the transfer section in sync with the exposure timing CN12 2 CN2 2 CN2 4 CN14 2 MPCB 29 oa Y L e BYPPLSW ub ecc i BYPSOL RSOL PFSOL Figure 1 3 7 Paper feed section block diagram 1 3 7 1AF 1 1 Paper feed from the paper drawer The paper drawer consists of the drawer bottom plate drawer springs and other components and can hold up to 250 sheets of copy paper Paper is fed out of the drawer by the rotation of paper feed pulleys A and B Prescan start Print key HPSW RSW SM PFSOL 147 P4140 RSOL Auto exposure mode A4 11 x 81 2 copy paper magnification ratio 10096 1 Varies depending on the setting by simulation 27 Timi
211. r the new developer After about 3 minutes the drive stops and the set value appears on the copy quantity dis play The developing unit drive time data is cleared If the result of automatic setting does not fall in the range between 26 and 230 0 5 to 4 5 V due to a problem in the developing section the new value is not stored and no data is shown on the display If the stop clear key is pressed during aging the operation stops and the toner sensor control volt age remains unchanged 4 Press the stop clear key To be run during machine setup or when developer is replaced Forcing toner feed 1 Enter 61 with the numeric keys 2 Press the print key Aging starts and toner is replen ished until the toner sensor output voltage reaches the toner feed stop level The toner sensor output voltage is shown on the copy quantity display during toner replenishing To interrupt toner replenishing press the stop clear key 9 Press the stop clear key To be run when toner is empty Adjusting the toner sensor control voltage Enter 62 with the numeric keys Press the print key The current setting appears on the copy quantity display Change the setting with the zoom up down keys Check and change the toner sensor control voltage set by simulation 60 Contents Setting range Reference Toner sensor control voltage 0 to 5 00 V 2 00V 4 Press the print key The n
212. rce unit 1 all the way toward the right until it is stopped by unit 2 Fasten the scanner wires to light source unit 1 with the wire retainers 49 Screw v Wire retainer Light source unit 1 gt Light source unit 2 o 9 Figure 3 3 30 Fastening scanner wire 3 3 25 1AF 5 Adjusting focus lens unit Make the following adjustment when the scanner wires are replaced or if the entire copy image is out of focus Procedure Make a test copy at 100 with the maximum size of copy paper Loosen the screw holding the mirrors 4 amp 5 frame on the lens unit and adjust the distance to the lens frame by moving it right and left Is the copy image in focus Mirrors 4 amp 5 frame Figure 3 3 31 Adjusting focus 3 3 26 1AF 6 Adjusting lateral image squareness height of the mirrors 4 amp 5 frame Make the following adjustment if the copy image is laterally skewed lateral squareness is not obtained Procedure Original Copy Copy example 1 example 2 Make a test copy at 100 i with the maximum size of Figure 3 3 32 copy paper Adjust the height of the mirrors 4 amp 5 frame on the lens unit by turning its adjustment screw For example 1 turn the adjustment screw clockwise For example 2 turn the adjustment scr
213. rected for individual magnification ratios according to the gradients Light intensity correction by the user setting The light intensity data can be corrected in exposure adjustment of the user settings by pressing an exposure adjustment key in manual exposure mode or the auto manual exposure key in auto exposure mode for 5 s The light intensity correction value is 0 at Exp 4 and changes at 4 bits per 0 5 steps of the exposure scale Light intensity correction value bits 18 18 7 Exposure scale Exp Figure 1 3 18 Light intensity correction by user setting 1 3 20 1AF 4 Developing section The developing section consists of the developing assembly and toner hopper 2957 Developing assembly Figure 1 3 19 Developing section The developing assembly consists of the developing roller where a magnetic brush is formed doctor blade and the developing spirals that agitate the developer In the toner hopper new toner from the toner cartridge is mixed with residual toner recovered from the cleaning section and the mixture is conveyed to the developing assembly The amount of toner in the toner hopper is monitored by the toner level sensor TLDS 1 3 21 1AF Cleaning assembly Cleaning spiral Hopper paddle A Hopper spiral Toner level sensor Toner feed motor Hopper paddle B Toner flow Figure 1 3 20 Toner recycling 1 3 22 Formati
214. rface potential is corrected by varying the grid control voltage GRID CONT output from the main PCB MPCB to the high voltage transformer PCB HVTPCB Table 1 3 1 Surface potential correction value vs absolute humidity Absolute Correction Absolute Correction Absolute Correction humidity value humidity value humidity value g m3 V g m3 V g m3 V 0 0 10 5 20 5 0 5 11 0 21 0 1 0 11 5 21 5 1 5 12 0 22 0 2 0 12 5 22 5 2 5 13 0 23 0 3 0 13 5 23 5 3 5 14 0 24 0 4 0 14 5 24 5 15 0 25 0 15 5 25 5 16 0 26 0 16 5 26 5 17 0 27 0 17 5 27 5 18 0 28 0 18 5 28 5 19 0 29 0 19 5 29 5 20 0 30 0 4 5 5 0 1 3 13 1AF 45 100 40 35 80 30 25 60 20 40 Relative humidity Absolute humidity g m3 20 0 10 15 20 25 30 35 C 50 59 68 77 86 95 F Temperature Figure1 3 11 Absolute humidity vs relative humidity Table 1 3 2 Surface potential correction value vs external temperature Temperature Correction Temperature Correction Temperature Correction C F value V C F value V C F value V 0 32 83 13 55 4 40 26 78 8 1 33 8 80 14 57 2 37 27 80 6 2 35 6 77 15 59 33 28 82 4 3 37 4 73 16 60 8 30 29 84 2
215. rol for photo mode The drum potential is set 170 V below the normal level and the halogen lamp light intensity value is set low for photo mode The halogen lamp light intensity value for photo mode Exp 4 is determined by running simulation 24 The light intensity for manual mode Exp 1 4 is used as the value for photo mode Exp 1 which determines the gradient between Exp 1 and Exp 4 for photo mode Similarly the light intensity for manual mode Exp 7 3 is used as the value for photo mode Exp 7 which determines the gradient between photo mode Exp 4 and Exp 7 1 3 18 1AF Exposure control for auto exposure mode In auto exposure mode the halogen lamp lights at the intensity set for mode 1 in simulation 22 to perform prescan The exposure level to copy that particular original is determined by using the value read in by the AE sensor AE detection prescan Exposure Original leading edge Scanner 4 movement Z x 148 Original Original leading edge 100 mm Detection width Figure 1 3 15 AE sensor detection width Halogen lamp voltage Drum potential 680 V DC Manual mode Exp 7 1 Drum potential 850 V DC Manual mode Exp 4 0 Mode3 sim 22 Mode 2 sim 22 NPTC level NTC level AE sensor read in value Figure 1 3 16 Exposure control for auto exposure mode The halogen lamp voltage is controlled so that the lamp lights at the intensity for
216. s Bypass table adjuster Figure 3 3 15 Adjusting the position of the bypass table adjuster 3 3 11 1AF 8 Adjustments after installing rollers and solenoids Perform the following adjustments after detaching and refitting the rollers and solenoids 8 1 Adjusting leading edge registration timing Adjust the registration timing if there is a regular error between the leading edges of the original and the copy image Start Enter simulation mode Procedure uu Enter 27 with the numeric keys Y Press the print key Y Select the mode to be adjusted with the paper select key Press the all clear reset key Y Press the print key to make a test copy Does the copy image look like example 1 Does the copy image look like example 2 3 3 12 Press the print key Original Copy Copy example 1 example 2 Figure 3 3 16 Mode 1 100 copy Mode 2 enlargement copy Mode 3 reduction copy The new setting is stored Decrease the setting with the zoom down key Increase the setting with the zoom up key Setting range 1 to 100 Reference 70 Increasing the value makes the secondary paper feed timing late and decreasing it makes the timing early 1AF Press the stop clear key Exit simulation mode End 3 3 13 1AF 8 2 Adjusting the leading edge margin Adjus
217. s CN Voltage 1AF Remarks 5 8 5 1 5 5 5 4 5 6 5 4 5 7 4 3 5 8 4 3 5 9 4 3 5 10 4 3 4 3 4 3 5V DC 24 V DC 24 V DC 24 V DC 0 24 V DC pulse 0 24 V DC pulse 0 24 V DC pulse 0 24 V DC pulse 5V DC 5V DC 5 0 V DC 5V DC 0 24 V DC pulse 24 V DC 0 24 V DC pulse 0 24 V DC pulse 24 V DC 0 24 V DC pulse 0 5 V DC pulse 0 5 V DC pulse 0 5 V DC pulse 0 5 V DC pulse 0 5 V DC pulse 0 5 V DC pulse 0 5 V DC pulse 0 5 V DC pulse 5 0 V DC pulse 5 0 V DC pulse 5 0 V DC pulse 5 V DC supply for LHPSW output AES detection voltage input 24 V DC supply for AES output 24 V DC supply for LM output 24 V DC supply for LM output LM coil energization pulse LM 90 output LM coil energization pulse LM 01 output LM coil energization pulse LM 02 output LM coil energization pulse LM 93 output 5 V DC supply for HUMSENS output HUMSENS detection voltage input ETTH detection voltage input HPSW on off input 5 V DC supply for HPSW output SM coil energization pulse SM A output 24 V DC supply for SM output SM coil energization pulse SM A output SM coil energization pulse SM B output 24 V DC supply for SM output SM coil energization pulse SM B output BL scan sink BL DIG 7 output BL scan sink BL DIG 6 output BL scan sink BL DIG 5 output BL scan sink BL DIG 4 output BL scan sink BL DIG 3
218. s 82 msa 8 2 2 5 9 xz9 i9z293z 88525522242 Bh z 8 msu 8 28 Wad MSW H 8 e AS 9 Ave 5 z S IET 2 git ul 8 5 cm Econ fa 5 C 4988 Fere E 73 8 Kins 2 nwa 28 cet fe z E T vans m EH E Way YSS 81 1 Ave 3An na 81 TL 8 c Lus rn S T 2 bZ 2 Dig h 9 er 8 4 N N 5 3 gt 24 Ave Ej 5 ro wr OS C f 3 3 95 1059 8 g LL 8 19 Ave amp Ave S a gt 8 85 10539 Of Ave Ave 56 5 vo o 2 E oi es zz Y NS oau 23 22 posaxa 2 E 2 Aven a Ae 92 11 gt 2 91 n o E si Par o 939 Ave 2 29 reso 5 Ave o 55 0929 8 2 eu SNIH OF 2 SNL u H gt ZH Wal 2 5 Wa S X S L msa H gt e compa eu Seq d 8 4 Tt Saute Se B 9 Sy 556 1 a ey a by 6 26 918 a 28 A 8 82 1 64 19 3 m EA 6 5 LAH gz 3 cL 2 5 v t ANOS SW 86 2 1409 aie 2 6 6 5 5 S c 293518 2
219. se 2 Figure 3 3 9 Bypass paper width switch 3 3 8 5 Adjusting the position of the original size indicator 1AF Perform the following adjustment ifthere is a regular error between the centers ofthe original and the copy image Procedure Y Loosen the screw holding the original size indicator and adjust Is the center of the the indicator s position image aligned with For example 1 move it in the that of the original direction of the white arrow gt For example 2 move it in the direction of the black arrow Original size indicator Figure 3 3 11 Adjusting the position of the original size indicator Make a test copy at 100 with Original Copy Copy the maximum size of copy paper example 1 example 2 Figure 3 3 10 3 3 9 1AF 6 Adjusting the position of the drawer cover Perform the following adjustment if there is a regular error between the centers ofthe original and the copy image on the paper fed from the drawer Important Before starting this adjustment ensure 5 Adjusting the position of the original size indicator has been completed Procedure Make a test copy at 100 with Original Copy Copy the maximum size of copy paper example 1 example 2 Figure 3 3 12 Loosen the four screws hol
220. switch off and disconnect the power plug before starting disassembly When handling PCBs do not touch connectors with bare hands or damage the board Donottouch any PCB containing IC s with bare hands or any object prone to static charge Useonly the specified parts to replace the fixing unit or optical section thermostats Never substitute wire for thermostats as the copier may be seriously damaged When installing a thermostat ensure the correct clearance if specified using a thickness gauge Do not turn the red screw on the image formation unit Use the following testers when measuring voltages Hioki 3200 Sanwa MD 180C Sanwa YX 360TR Beckman TECH300 Beckman DM45 Beckman 330 capable of measuring RMS values Beckman 3030 capable of measuring RMS values Beckman 850 capable of measuring RMS values Fluke 8060A capable of measuring RMS values Arlec DMM1050 Arlec YF1030C Prepare the following as test originals 1 NTC new test chart 2 NPTC newspaper test chart 3 3 1 1AF 2 Running a simulation Start Y Enter 10871087 with the numeric Simulation mode is entered keys Y Enter the number of the simulation to be run with the numeric keys Press the print key Y The selected simulation is run Y Press the stop clear key The simulation is selected Enter 01 with the numeric keys Simulation mode is exited and press the print key E
221. t copy Reduction copy Side erasure Trailing edge blank cut 100 copy Reduction copy Toner sensor control voltage Maintenance cycle Maintenance count Service call records Jam counts Service call counts Paper feed counts Double single counts Initial exposure mode Manual auto modes Exposure scale Auto clear time 55 25 200 40000 0 cleared 0 all cleared all cleared all cleared all cleared 0 0 0 0 0 0 1 90 32 3 2 19 1AF Description Remarks Sim No Auto preheat time 15 85 Auto shutoff time 30 86 Paper size 0 88 Contents Initial data Maximum preset No of copies 100 89 Operation under the toner empty condition 91 No of copies 0 unlimited Copy mode O single copies Auto start 1 Destination 1 metric Optical section fan motor control 0 normal 4 Press the stop clear key After running this simulation it is necessary to take the following procedure 1 Run simulation 93 to set the destination 2 Run each simulation listed above and reenter their values on the simulation label 3 2 20 Description 1AF Remarks Setting the maintenance cycle 1 Enter 71 with the numeric keys 2 Press the print key 3 Select a mode with the paper select key The tenance cycle appears on the copy quantity display Check and change the main tenance cycle Mode Contents Setting rang
222. t the leading edge margin as follows if it is not within the specified range Important Before starting this adjustment ensure 8 1 Adjusting the leading edge registration timing has been completed Contact glass Start Y A3 11 x 17 Enter simulation mode paper Procedure Y Enter 54 with the numeric keys 3 2 5 Y Press the print key Y Place an A3 11 x 17 sheet on the contact glass with the original holder open Figure 3 3 17 Use a scale to measure accurately Y Mode 1 100 co 3 Select the mode to be adjusted Mode 2 Figure 3 3 17 with the paper select key Mode 3 reduction copy Press the print key Y Press the all clear reset key The new setting is stored Y Press the print key to make a test copy S leading edge margin A within the speci ied range Change the setting with the zoom up down keys Setting range 1 to 200 References 75 for 100 copy 100 for enlargement copy 30 for reduction copy Increasing the value makes the margin wider Adjust for another mode be and decreasing it makes the margin narrower No 1 Specified ranges Y 3 2 5 mm for 100 copy Press the stop clear key 4 5 2 5 mm for enlargement copy 3 2 5 mm for reduction copy Y Exit simulation mode End
223. t thermistor as follows Procedure 1 Remove the fixing unit cover 2 Remove the screw and fixing unit thermistor 3 Fit the new fixing unit thermistor with its projection seated into the upper hole in the fixing unit housing 4 Refit all the removed parts Screw Projection Fixing unit thermistor Fixing unit housing Figure 3 3 59 Detaching the fixing unit thermistor 3 3 59 1AF 3 Detaching and refitting the fixing unit blade Clean or replace the fixing unit blade as follows Procedure 1 Remove the fixing unit cover 2 Remove the two screws fixing unit thermistor partition and the fixing unit blade 3 Clean or replace the fixing unit blade 4 Refit all the removed parts Screws L8 Fixing unit thermistor partition Fixing unit blade 2 Figure 3 3 60 Detaching the fixing unit blade 3 3 60 1AF 4 Replacing fixing unit thermostats 1 and 2 Replace fixing unit thermostats 1 and or 2 as follows Caution Use the specified thermostat for replacement Do not substitute a simple wire or similar otherwise the copier will be seriously damaged Procedure 1 Detach the fixing unit cover 2 Removethe connectors of the fixing heater wire thermostat relay wire and fixing heater relay wire from the fixing unit thermostats 3 Remove the two screws for each thermostat and then fixing unit thermostats 1 and 2 4 Replace fixing unit thermostats 1 and or 2 When fitti
224. tch 1 SSW1 Safety switch 2 SSW2 RIAL Turns the AC power on and off evt eun eed ects Breaks the safety circuit when the front cover is opened and resets paper jam detection onera AA Breaks the safety circuit when the eject cover is opened and resets paper jam detection Drawer switch CASDSW Detects the presence or absence of the paper drawer Bypass paper length switch BYPPLSW Detects the length of paper on the bypass table Bypass paper width switch BYPPWSW Detects the width of paper on the bypass table Bypass table extended detection switch BYBEDSW ieri Detects when the bypass table is extended to use long paper Registration switch RSW Controls the secondary paper feed start timing Eject switch ESW Detects a paper jam in the fixing section AE sensor AES sse Detects the original density Home position switch HPSW Detects the scanner in the home position Lens home position switch LHPSW Detects the lens in the home position Toner cartridge detection switch 1 TODSW1 iiie 2 1 2 putei idt eque Detects the presence or absence of the toner cartridge 14 15 16 17 18 19 20 Toner cartridge detection switch 2 2 aged stre Toner sensor
225. ter option 3 1 17 3 1 4 Installing the dehumidifier service part 3 1 19 1AF CONTENTS 3 2 Simulation 3 251 Sirmn ulatiornis 1 Running a simulation 2 Simulation list ciii be ect bea 3 Contents of simulations seen 3 2 6 1AF CONTENTS 3 3 Assembly and Disassembly 3 3 1 Precautions for assembly and disassembly 3 3 1 1 Precautions 4 ciini e e d n dag 3 3 1 2 Running a simulation 3 3 2 3 3 2 Paper feed section 004420 0 3 3 3 1 Detaching and refitting paper feed pulleys A and B 2 3 Detaching and refitting the bypass upper pulley 3 3 6 4 Replacing the bypass paper width switch 5 Adjusting the position of the original size indicator 6 7 8 Adjusting the position of the drawer cover Adjusting the position of the bypass table adjuster 8 1 Adjusting leading edge registration timing ui 8 2 Adjusting the leading edge margin 8 3 Adjusting the trailing edge blank cut for 100 copy 3 3 15 8 4 Adjusting the trailing edge blank cut for reduction COD orones 3 3 3 Main charging 1 Replacing the charger wire 3 3 4 Exposure
226. thermistor Measure the resistance If it is 0 replace the drum thermistor Defective main PCB Replace the main PCB and check the operation Broken external tem perature thermistor wire The external temperature thermistor output is above 4 5 V continuously for 500 ms or longer Poor contact in the humid ity sensor PCB connec tors Check that the connectors are inserted properly Broken exter nal tempera ture thermis tor wire Measure the resistance across the external tempera ture thermistor If it is replace the humidity sensor PCB Defective main PCB Replace the main PCB and check the operation Shorted external tem perature thermistor The external temperature thermistor output is below 0 5 V continuously for 500 ms or longer 3 5 6 Shorted exter nal tempera ture thermis tor Measure the resistance across the external tempera ture thermistor If it is O replace the humidity sensor PCB Defective main PCB Replace the main PCB and check the operation Contents 1AF Remarks Causes Check procedures corrective measures Copier ADF serial com munication problem After originals placed on the ADF are detected a serial communication error is detected three times in succession Poor contact in the connec tor Check the connections at CNG on the main and the connector on the ADF and check
227. tion timing 1 Enter 52 with the numeric keys 2 Press the print key The current setting appears on the copy quantity display 3 Change the setting with the zoom up down keys Adjust the posi tion where the original fed from the ADF stops Contents Setting range Reference Amount of change per step Original stop position 37 to 163 100 0 42 mm Press the print key The new setting is stored 5 Press the all clear reset key Test copy mode is entered 6 Press the print key to make a test copy 7 Press the stop clear key Adjusting the leading edge margin See page 3 3 14 3 2 16 Adjusting the side erasure Enter 55 with the numeric keys Press the print key The current setting appears on the copy quantity display Change the setting with the zoom up down keys Setting Blank cut margin 0 None 1 Small 2 Medium 3 Large Press the print key The new setting is stored 5 Press the stop clear key Set the blank cut margin to elimi nate the shadow of the ADF origi nal conveying belt by changing the number of blank lamps turned on Description 1AF Remarks Adjusting the trailing edge blank cut See page 3 3 15 16 Initializing the toner control level 1 Enter 60 with the numeric keys Press the print key Press the print key Aging starts and the toner sen Sor control voltage is automatically set fo
228. uity with paper size indicator 1 5 Continuity with paper size indicator 1 6 Continuity with paper size indicator 1 7 Continuity with paper size indicator 1 3 Continuity with manual indicator L24 lit 1 4 Continuity with check paper size direction indicator L23 lit 1 5 Continuity with maintenance indicator L22 lit 1 6 Continuity with add toner indicator L21 lit 1 7 Continuity with paper source drawer indicator L20 lit 1 6 Continuity with auto selection indicator L29 lit 1 7 Continuity with photo original indicator L27 lit 1 8 Continuity with auto exposure indicator L26 lit 1 1 Continuity with copy start indicator L37 lit 1 2 Continuity with exposure Exp 7 indicator L36 1 3 Continuity with exposure Exp 6 indicator L35 1 4 Continuity with exposure Exp 5 indicator L34 L33 li 1 5 Continuity with exposure 1 6 Continuity with exposure Exp 3 indicator L32 Exp 4 indicator 1 7 Continuity with exposure Exp 2 indicator L31 1 8 Continuity with exposure Exp 1 indicator L30 2 2 Continuity with auto selection key K23 pressed no continuity with the key released 2 3 Continuity with recall key K6 pressed no continuity with the key released 2 1 Continuity with zoom up key K5 pressed no continuity with the key released 2 2 Continuity with manual key K4 pressed no continuity with the key released
229. ulation mode Enter 59 with the numeric keys about 3 mm Press the print key Select mode 2 with the paper select key Use a scale to measure accurately Figure 3 3 19 Place an A3 11 x 17 sheet on the contact glass with the original holder open Figure 3 3 19 Press the print key Press the all clear reset key ne Press the print key to make a test copy Is black band A about 3 mm Change the setting with the zoom up down keys Setting range 0 to 35 Reference 25 Increasing the value makes the black band wider and decreasing it makes the band narrower Press the stop clear key Exit simulation mode 3 3 16 1AF 3 3 3 Main charging section 1 Replacing the charger wire Take the following procedure when the charger wire is broken or to be replaced Precautions Use the specified tungsten wire for the charger wire The partofthe wire wrapped around the charger spring must not protrude from the charger housing The cut end of the charger wire must not protrude more than 2 mm from under the charger wire retainer pin Use a clean undamaged tungsten charger wire Keep the charger wire taut by ensuring the charger spring is under tension Clean the main charger shield first with a damp cloth and then with a dry cloth when replacin
230. unit 2 travels at a half speed of unit 1 A cooling fan is installed to exhaust heat generated by the halogen lamp If an abnormally high temperature is detected around light source unit 1 the optical section thermostat TH3 shuts off the supply to the halogen lamp Original M FE HPSW AES Tm ehe CN1 3 s LHP 9 sw o H 2 e I Ea la TP 2 Leary N co te wo 2 2 2 2 zz z z o Figure 1 3 13 Exposure section block diagram 1 3 16 1AF Scan start Prescan start Scanner return start Print key 10 Pe 10 P e HPSW SM Reverse HL Auto exposure mode A4 11 x 81 2 original Timing chart 1 3 4 Scanner travel When the print key is pressed the halogen lamp HL lights at the intensity for prescan 480 ms after the halogen lamp HL has turned on the scanner motor SM rotates forward for prescan After rotating forward 1232 pulses the scanner motor SM reverses to return the scanner to the home position At the same time the halogen lamp HL turns off 10pulses after the home position switch HPSW has been turned on the scanner motor SM turns off and the scanner stops At the same time the halogen lamp HL lights for exposure 480 ms after turning off the scanner motor SM rotates forward for scanning After
231. ure Adjusting the trailing edge blank cut Optical Turning the halogen lamp on Checking scanning operation Adjusting the auto exposure reference value Turning the lens motor on Setting the exposure amount Adjusting lateral magnification Adjusting longitudinal magnification Setting the lens unit rank Adjusting exposure amount for enlargement reduction mode Charging Setting transfer voltage Setting the drum potential Cleaning Making a blank lamp test copy Fixing Setting the fixing temperature Setting the fixing preheat temperature Operation Lighting all the indicators on the operation panel Developing Initializing the toner control level Forcing toner feed Adjusting the toner sensor control voltage Initializing memory Initializing the backup memory Counts 3 2 4 Setting the maintenance cycle 40000 Checking clearing the maintenance count Cleared Checking clearing service call records All cleared Checking clearing jam counts All cleared Checking clearing the service call counts All cleared Checking clearing the paper feed counts All cleared Section Simulation contents 1AF Default Copy modes Selecting between double single counts Double count Setting initial exposure mode Inch 1 Metric 0 Selecting between manual auto modes
232. wall outlet before starting machine disassembly seen Always follow the procedures for maintenance described in the service Q manual and other related brochures Under no circumstances attempt to bypass or disable safety features Q including safety mechanisms and protective circuits e Always use parts having the correct specifications Q Always use the thermostat or thermal fuse specified in the service manual or other related brochure when replacing them Using a piece of wire for example could lead to fire or other serious accident When the service manual or other serious brochure specifies a distance or gap for installation of a part always use the correct scale and measure carefully Always check that the copier is correctly connected to an outlet with a 6 ground te rrr a e e e eei Check that the power cable covering is free of damage Check that the power plug is dust free If it is dirty clean it to remove the risk of fire or o electric SHOCK T Never attempt to disassemble the optical unit in machines using lasers Q Leaking laser light may damage e Handle the charger sections with care They are charged to high AN potentials and may caus

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