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Utax PF 420, Service Manual

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Utax PF 420 Service Manual Download Page 12

3MH

CONTENTS

1-1 Specifications

1-1-1 Specifications..........................................................................................................................................1-1-1
1-1-2 Parts names............................................................................................................................................1-1-2
1-1-3 Machine cross section ............................................................................................................................1-1-3

1-2 Installation

1-2-1 Installation environment ..........................................................................................................................1-2-1
1-2-2 Unpacking ...............................................................................................................................................1-2-2

(1) Unpacking .........................................................................................................................................1-2-2
(2) Remove the tapes and spacer ..........................................................................................................1-2-3

1-2-3 Installing the cassette heater (option) .....................................................................................................1-2-4

1-3 Maintenance Mode

1-3-1 Maintenance mode (operation panel is a 7-segment type).....................................................................1-3-1

(1) Executing a maintenance item ..........................................................................................................1-3-1
(2) Maintenance mode item list...............................................................................................................1-3-2
(3) Contents of maintenance mode items...............................................................................................1-3-3

1-3-2 Maintenance mode (operation panel is an LCD type)...........................................................................1-3-13

(1) Executing a maintenance item ........................................................................................................1-3-13
(2) Maintenance mode item list.............................................................................................................1-3-14
(3) Contents of maintenance mode items.............................................................................................1-3-15

1-4 Troubleshooting

1-4-1 Paper misfeed detection .........................................................................................................................1-4-1

(1) Paper misfeed indication ...................................................................................................................1-4-1
(2) Paper misfeed detection conditions ..................................................................................................1-4-1
(3) Paper misfeeds .................................................................................................................................1-4-3

1-4-2 Self-diagnosis .........................................................................................................................................1-4-6

(1) Self-diagnostic function (operation panel is a 7-segment type).........................................................1-4-6
(2) Self diagnostic codes (operation panel is a 7-segment type)............................................................1-4-6
(3) Self-diagnostic function (operation panel is an LCD type) ................................................................1-4-7
(4) Self diagnostic codes (operation panel is an LCD type)....................................................................1-4-7

1-4-3 Image formation problems ......................................................................................................................1-4-8

(1) The leading edge of the image is consistently misaligned with the original. .....................................1-4-8
(2) The leading edge of the image is sporadically misaligned with the original. .....................................1-4-8
(3) Image center does not align with the original center. ........................................................................1-4-8

1-4-4 Electric problems ....................................................................................................................................1-4-9
1-4-5 Mechanical problems ............................................................................................................................1-4-11

1-5 Assembly and Disassembly

1-5-1 Precautions for assembly and disassembly............................................................................................1-5-1

(1) Precautions .......................................................................................................................................1-5-1

1-5-2 Paper feed section ..................................................................................................................................1-5-2

(1) Detaching and refitting the feed roller ...............................................................................................1-5-2
(2) Detaching and refitting the cassette separation pulley......................................................................1-5-3
(3) Detaching and refitting the cassette forwarding pulley and cassette paper feed pulley....................1-5-5

2-1 Mechanical Construction

2-1-1 Mechanical construction .........................................................................................................................2-1-1

2-2 Electrical Parts Layout

2-2-1 Electrical parts layout..............................................................................................................................2-2-1

(1) PWBs ................................................................................................................................................2-2-1
(2) Switches and sensors .......................................................................................................................2-2-2
(3) Others................................................................................................................................................2-2-3

2-3 Operation of the PWBs

2-3-1 Cassette main PWB................................................................................................................................2-3-1

Summary of Contents for PF 420

Page 1: ...Service Manual Paper Feeder PF 420 First Edition Date 04 08 2009 3MHSM060 ...

Page 2: ...Service Manual Paper Feeder PF 420 First Edition Date 04 08 2009 3MHSM060 ...

Page 3: ...icials for details in your area for proper disposal ATTENTION IL Y A UN RISQUE D EXPLOSION SI LA BATTERIE EST REMPLACEE PAR UN MODELE DE TYPE INCORRECT METTRE AU REBUT LES BATTERIES UTILISEES SELON LES INSTRUC TIONS DONNEES Il peut être illégal de jeter les batteries dans des eaux d égout municipales Vérifiez avec les fonc tionnaires municipaux de votre région pour les détails concernant des déche...

Page 4: ...Revision history Revision Date Replaced pages Remarks ...

Page 5: ...This page is intentionally left blank ...

Page 6: ...rsonnel 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 ...

Page 7: ... this symbol CAUTION Bodily injury or damage to property may result from insufficient attention to or incorrect compliance 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 General warning Warning of risk of electric shock Warning of high temperature indicates a prohibited ...

Page 8: ... or dusty place This may cause fire or electric shock Do not install the copier near a radiator heater other heat source or 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 cause heat buildup and poor copying performance Always handle the machine by the correct l...

Page 9: ... carefully Always check that the copier is correctly connected to an outlet with a ground connection 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 electric shock Never attempt to disassemble the optical unit in machines using lasers Leaking laser light may damage eyesight Handle the charger section...

Page 10: ...r trapped wire and missing screws 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 below Use only a small amount of solvent at a time being careful not to spill Wipe spills off completely Ventilate the room wel...

Page 11: ...This page is intentionally left blank ...

Page 12: ...gment type 1 4 6 2 Self diagnostic codes operation panel is a 7 segment type 1 4 6 3 Self diagnostic function operation panel is an LCD type 1 4 7 4 Self diagnostic codes operation panel is an LCD type 1 4 7 1 4 3 Image formation problems 1 4 8 1 The leading edge of the image is consistently misaligned with the original 1 4 8 2 The leading edge of the image is sporadically misaligned with the orig...

Page 13: ...3MH 2 4 Appendixes List of maintenance parts 2 4 1 Periodic maintenance procedures 2 4 1 Wiring diagram 2 4 2 ...

Page 14: ...d recycled Paper size A3 B4 A4 A4R B5 B5R A5R Folio Ledger Legal OficioII Letter LetterR StatementR 8K 16K Paper capacity 300 sheets 80 g m2 Power source Electrically connected to the machine Dimensions 568 W x 546 D x 135 H mm 22 3 8 W x 21 1 2 D x 5 5 16 H Weight 6 kg 13 2 lbs NOTE These specifications are subject to change without notice ...

Page 15: ...3MH 1 1 2 1 1 2 Parts names Figure 1 1 1 2 1 3 3 4 1 Cassette 2 Cassette left cover 3 Paper width guides 4 Paper length guide ...

Page 16: ...3MH 1 1 3 1 1 3 Machine cross section Figure 1 1 2 Machine cross section Paper path ...

Page 17: ...3MH 1 1 4 This page is intentionally left blank ...

Page 18: ...humidity or low temperature and low humidity an abrupt change in the environmental temperature and cool or hot direct air Avoid places subject to dust and vibrations Choose a surface capable of supporting the weight of the machine Place the machine on a level surface maximum allowance inclination 1 Avoid air borne substances that may adversely affect the machine or degrade the photoconductor such ...

Page 19: ...n Guide for installation 1 Paper feeder 2 Outer case 3 Bottom left pad 4 Bottom right pad 5 Top left pad 6 Top right pad 7 Plastic sheet 8 Plastic bag 9 Plastic bag 10 Cover labels 11 Plastic bag 12 Screw M3 x 8 13 Screw M3 x 12 14 Connector cover 15 Cursor pins 16 Cassette size label 17 Installation guide 18 Bar code labels ...

Page 20: ... 1 2 3 2 Remove the tapes and spacer Procedure 1 Remove two tapes 2 Remove the spacer Figure 1 2 2 3 Pull the cassette out and remove the tape 4 Push the cassette back in Figure 1 2 3 Tape Spacer Tape Tape ...

Page 21: ...t screw P N 7BB202308H Procedure 1 Remove the screw and the pin and then remove the cassette rear cover 2 Pull out the cassette Figure 1 2 4 3 Pass the cassette heater cable through the hole at the machine rear side 4 Insert the stay of the cassette heater into the hole at the machine rear side 5 Attach the cassette heater using the M3 x 8 P tight screw Figure 1 2 5 Screw Pin Cassette rear cover C...

Page 22: ...3MH 1 2 5 6 Connect the connector of the cassette heater cable to the connector of the machine 7 Refit all the removed parts Figure 1 2 6 Cassette heater cable Connector ...

Page 23: ...3MH 1 2 6 This page is intentionally left blank ...

Page 24: ...ter 10871087 using the numeric keys Enter 001 using the zoom keys or numeric keys and press the start key Enter the maintenance item number using the zoom keys or numeric keys The selected maintenance item is run Press the stop clear key Press the start key Start End Maintenance mode is entered The maintenance item is selected Maintenance mode is exited Repeat the same maintenance item Run another...

Page 25: ...center line Adjusting the trailing edge margin Adjusting the leading edge registration 2 8 0 0 0 0 0 0 0 0 0 8 1 2 4 0 0 0 0 0 0 0 0 0 0 1 2 0 1 2 0 2 0 2 0 2 0 2 0 2 0 1 U051 Adjusting the deflection in the paper 30 20 0 20 20 20 1 U053 Performing fine adjustment of the motor speed 0 3 0 7 0 5 0 0 0 0 5 1 0 1 0 1 0 3 1 Mode setting U341 Specific paper feed location setting for printing function O...

Page 26: ...hange history of the main PWB Number of the main ROM Number of the main ROM sub Exp 1 lit Exp 2 lit Exp 3 lit Exp 4 lit Exp 5 lit Exp 1 flashing E Part Code Engine PWB Change history of the engine PWB Number of the engine ROM Number of the engine ROM sub Change history of the engine PWB BOOT Number of the engine PWB BOOT Exp 1 lit Exp 2 lit Exp 3 lit Exp 4 lit Exp 5 lit L Part Code Language Change...

Page 27: ... each switch on and off manually to check the status When the on status of a switch is detected the original size indicator corresponding to the operated switch lights Completion Press the stop clear key The screen for selecting a maintenance item No is displayed Maintenance item No Description Display Motor A Drive motor DM is turned ON 2F Drum motor DRM is turned ON F1 Cassette drive motor 1 CDM...

Page 28: ...e adjustment keys 3 Press the start key The selected clutch turns on for 1 s Completion Press the stop clear key The screen for selecting a maintenance item No is displayed Maintenance item No Description Display Clutch P1 Paper feed clutch PFCL Pb MP solenoid MPSOL A1 Registration clutch RCL d1 Duplex feed clutch DUPFCL P2 Cassette paper feed clutch 1 CPFCL1 P3 Cassette paper feed clutch 2 CPFCL2...

Page 29: ...ess the start key to output a test pattern 5 Change the setting value using the zoom keys For output example 1 decrease the value For output example 2 increase the value Figure 1 3 1 Maintenance item No Description Image mode LEDs group No Description 1 Leading edge registration adjustment 2 Center line adjustment 3 Trailing edge margin adjustment 4 Leading edge registration adjustment for printer...

Page 30: ...If the image is still incorrect perform the following adjustments in maintenance mode Maintenance item No Description U071 See the service manual for the machine U066 See the service manual for the machine U034 Exposure indicator Description Setting range Initial setting Change in value per step Exp 1 lit Paper feed from cassette 7 0 to 10 0 2 4 0 1 mm Exp 2 lit Paper feed from MP tray 7 0 to 10 0...

Page 31: ...Figure 1 3 4 6 Press the start key The value is set Completion Press the stop clear key The screen for selecting a maintenance item No is displayed Maintenance item No Description Description Setting range Initial setting Change in value per step Trailing edge margin adjustment 4 0 to 10 0 2 0 0 1 mm Correct image Output example Trailing edge margin Exposure indicator Description Setting range Ini...

Page 32: ...alue the larger the amount of slack the smaller the value the smaller the amount of slack Figure 1 3 5 6 Press the start key The value is set Completion Press the stop clear key The screen for selecting a maintenance item No is displayed Maintenance item No Description Exposure indicator Description Setting range Initial setting Change in value per step Exp 1 lit Paper feed from cassette 50 to 127...

Page 33: ...makes the image shorter in the main scanning direction and decreasing it makes the image longer in the main scanning direction 4 Press the start key The value is set Completion Press the stop clear key The screen for selecting a maintenance item No is displayed Maintenance item No Description Image mode LEDs Exposure indicator Description Setting range Initial setting Exp 1 lit Exp 2 lit Exp 3 lit...

Page 34: ...not be used for copy output Setting 1 Press the start key 2 Select the paper feed location for the printer using the exposure adjustment keys 3 Select on or oFF using the zoom keys 4 Press the start key The setting is set Completion Press the stop clear key The screen for selecting a maintenance item No is displayed Maintenance item No Description Display Description Exp 1 Cassette Exp 2 First pap...

Page 35: ...s cleared Completion Press the stop clear key The screen for selecting a maintenance item No is displayed Maintenance item No Description Image mode LED group No Exposure indicator Copy quantity display count value 1 Exp 1 Exp 2 Exp 3 First 3 digits of MP copy count Last 3 digits of MP copy count Clearing the count CLE 2 Exp 1 Exp 2 Exp 3 First 3 digits of the cassette copy count Last 3 digits of ...

Page 36: ...numeric keys Enter 001 using the cursor up down keys or numeric keys and press the start key Enter the maintenance item number using the cursor up down keys or numeric keys The selected maintenance item is run Press the stop clear key Press the start key Start End Maintenance mode is entered The maintenance item is selected Maintenance mode is exited Repeat the same maintenance item Run another ma...

Page 37: ... edge registration Adjusting the center line Adjusting the trailing edge registration 2 8 0 0 0 0 0 0 0 0 0 8 1 2 4 0 0 0 0 0 0 0 0 0 0 1 2 0 1 U051 Adjusting the deflection in the paper 30 20 0 20 20 20 1 U053 Setting the adjustment of the motor speed 0 3 0 7 0 5 0 0 0 1 0 1 0 3 0 0 0 0 0 5 0 0 1 Mode setting U341 Specific paper feed location setting for printing function Other U901 Checking copy...

Page 38: ...s 3 Press the start key The operation starts 4 To stop operation press the stop clear key Completion Press the stop clear key after operation stops The screen for selecting a maintenance item No is displayed Display Description MAIN Main ROM ENGINE Engine ROM LANG St Standard language ROM LANG Op Optional language ROM MAIN BOOT Boot of main ROM PRINTER Printer ROM NWS Optional network scanner ROM ...

Page 39: ...lutch or solenoid Method 1 Press the start key 2 Select the clutch or solenoid to be operated using the cursor up down keys 3 Press the start key The clutch or solenoid turns on for 1 s Completion Press the stop clear key The screen for selecting a maintenance item No is displayed Maintenance item No Description Display Switches EJE Eject switch ESW RES Registration switch RSW PF2 Cassette feed sw...

Page 40: ...ecrease the value For output example 2 increase the value Figure 1 3 7 5 Press the start key The value is set Caution Check the copy image after the adjustment If the image is still incorrect perform the following adjustments in maintenance mode Maintenance item No Description Display Description ADJ RCL ON TIMING Leading edge registration adjustment ADJ LSU ON TIMING Center line adjustment ADJ MG...

Page 41: ...owing adjustments in maintenance mode Maintenance item No Description Display Description Setting range Initial setting Change in value per step LSU OUT Paper feed from cassette 7 0 to 10 0 2 4 0 1 mm LSU BYP Paper feed from MP tray 7 0 to 10 0 0 0 0 1 mm LSU T1 Paper feed from first paper feeder 7 0 to 10 0 0 0 0 1 mm LSU T2 Paper feed from second paper feeder 7 0 to 10 0 0 0 0 1 mm LSU T3 Paper ...

Page 42: ...ys For output example increase the value Figure 1 3 9 5 Press the start key The value is set Completion Press the stop clear key The screen for selecting a maintenance item No is displayed Maintenance item No Description Display Description Setting range Initial setting Change in value per step MGN REAR Trailing edge margin adjustment 4 0 to 10 0 2 0 0 1 ms Correct image Output example Trailing ed...

Page 43: ...se the value For output example 2 decrease the value The greater the value the larger the deflection the smaller the value the smaller the deflection Figure 1 3 10 6 Press the start key The value is set Completion Press the stop clear key The screen for selecting a maintenance item No is displayed Maintenance item No Description Display Description Setting range Initial setting PF1 Paper feed from...

Page 44: ...set Completion Press the stop clear key The screen for selecting a maintenance item No is displayed Maintenance item No Description Display Description Setting range Initial setting MAIN Drive motor speed adjustment 5 0 to 5 0 0 3 POLY Polygon motor speed adjustment 5 0 to 5 0 0 7 EJE Eject motor speed adjustment 5 0 to 5 0 0 5 DRUM Drum motor speed adjustment 5 0 to 5 0 0 0 BYP Motor speed adjust...

Page 45: ...eed locations Purpose To check the time to replace consumable parts Also to clear the counts after replacing the consumable parts Method 1 Press the start key The counts by paper feed locations are displayed 2 Change the screen using the cursor left right keys When an optional paper feed device is not installed the corresponding count is not displayed Clearing 1 Select the count to be cleared usin...

Page 46: ...sfeed occurs the machine immediately stops copying and displays the jam location on the operation panel Paper misfeed detection can be reset by opening and closing the cassette left cover to turn safety switch off and on 2 Paper misfeed detection conditions Figure 1 4 1 CFSW1 CFSW2 CPFCL1 CPFCL2 CPFCL3 ...

Page 47: ...on 1916 ms Cassette feed switch 1 CFSW1 does not turn off within specified time of cassette feed switch 2 CFSW2 turning off 1916 ms Left cover is opened in prior to the cassette feed switch 1 CFSW1 is turned off 16 Misfeed in vertical paper conveying sec tion 2 Cassette feed switch 1 CFSW1 does not turn on within specified time of cassette feed switch 2 CFSW2 turning on 1916 ms Left cover is opene...

Page 48: ...ny deformed pulley Broken cassette feed switch 1 actuator Check visually and replace switch Defective cassette feed switch 1 Run maintenance item U031 and turn cassette feed switch 1 on and off manually Replace the switch if indication of the corre sponding switch is not light Check if the cassette paper feed clutch 2 malfunctions Run maintenance item U032 and select the cassette paper feed clutch...

Page 49: ...tch if indication of the corresponding switch is not light Cassette feed switch 1 2 Check if the paper feed clutch cassette paper feed clutch 1 or 2 malfunctions Run maintenance item U032 and select the clutch to be turned on and off Check the status and remedy if necessary Electrical problem with the paper feed clutch cassette paper feed clutch 1 or 2 Check see page 1 4 9 Defective feed pulleys o...

Page 50: ...ry Electrical problem with the cassette paper feed clutch 2 Check see page 1 4 9 8 A paper jam in the paper feed section is indicated during copying multiple sheets in third paper feeder Jam code 24 Deformed guides along the paper conveying path Check visually and replace Broken cassette feed switch 2 actuator Check visually and replace switch Defective cassette feed switch 2 Run maintenance item ...

Page 51: ...r installed incor rectly Check the installation state of the first paper feeder and adjust it if it is not properly installed Defective PWB Replace the main engine PWB or cassette main PWB and check for correct operation A0500 Second paper feeder communication problem Communication fails five times succes sively Second paper feeder installed incorrectly Check the installation state of the second p...

Page 52: ... Check procedures corrective measures C0420 First paper feeder communication problem Communication fails five times succes sively First paper feeder installed incor rectly Check the installation state of the first paper feeder and adjust it if it is not properly installed Defective PWB Replace the engine PWB or cassette main PWB and check for correct operation C0500 Second paper feeder communicati...

Page 53: ...034 to readjust the leading edge registration see page 1 3 6 17 Copy example Causes Check procedures corrective measures Paper feed clutch MP solenoid or registration clutch installed or operat ing incorrectly Check the installation position and operation of each clutch or solenoid If any of them operates incorrectly replace it Copy example Causes Check procedures corrective measures Misadjusted i...

Page 54: ...tte main PWB Run maintenance item U032 and check if following terminals on the cassette main PWB goes low If not replace the cassette main PWB Cassette paper feed clutch YC8 2 on the cassette main PWB 4 The message requesting paper to be loaded is shown when paper is present on the cas sette 1 Poor contact in the con nector terminals of cas sette paper switch Reinsert the connector Also check for ...

Page 55: ...rt the connector Also check for continuity within the con nector cable If none remedy or replace the cable 2 Defective cassette left cover safety switch Check for continuity across each switch If there is no continuity when the switch is on replace it 8 Others 1 Wiring is broken shorted or makes poor contact Check for continuity If none repair Problem Causes Check procedures corrective measures ...

Page 56: ...e 1 4 9 2 Skewed paper feed Width guide in a cassette installed incorrectly Check the width guide visually and correct or replace if necessary Deformed width guide in a cassette Check visually and replace any deformed guide 3 Multiple sheets of paper are fed at one time Paper is extremely curled Change the paper Check if the cassette separation pulley is worn Replace the cassette separation pulley...

Page 57: ...3MH 1 4 12 This page is intentionally left blank ...

Page 58: ... power switch before pressing the power key to off may cause damage to the equipped hard disk When handling PWBs printed wiring boards do not touch parts with bare hands The PWBs are susceptible to static charge Do not touch any PWB containing ICs with bare hands or any object prone to static charge When removing the hook of the connector be sure to release the hook Take care not to get the cables...

Page 59: ...r side of the feed roller and slide the bush toward the inside 3 Lift the rear of the feed roller upward Slide the feed roller toward the rear side and remove the roller from the paper feeder Figure 1 5 1 4 Remove the gear spring pin and two bushes from the feed roller 5 Replace the feed roller and refit all the removed parts Figure 1 5 2 Feed roller Stop ring Bush Feed roller Bush Gear Spring pin...

Page 60: ...y Procedure 1 Pull out the cassette 2 Remove the screw and remove the lower paper feed unit Figure 1 5 3 3 Release two hooks and remove the separa tion pulley unit from the lower paper feed unit Figure 1 5 4 Lower paper feed unit Screw Hook Hook Separation pulley unit Separation pulley unit Separation pulley unit Lower paper feed unit ...

Page 61: ...aft from the separation pulley unit 5 Remove the cassette separation pulley from the separation pulley shaft 6 Replace the cassette separation pulley and refit all the removed parts Figure 1 5 5 Cassette separation pulley Separation pulley shaft ...

Page 62: ...move the feed roller see 1 5 2 2 Remove the lower paper feed unit see 1 5 3 3 Remove the screw and the pin and then remove the cassette rear cover Figure 1 5 6 4 Remove the connector of the cassette paper feed clutch 5 Remove the stop ring and remove the cas sette paper feed clutch 6 Remove the stop ring and the bush Figure 1 5 7 Screw Pin Cassette rear cover Cassette paper feed clutch Stop ring S...

Page 63: ... upper paper feed unit Figure 1 5 8 8 Remove the springs stop ring and bush and then remove the shaft holder from the upper paper feed unit Figure 1 5 9 Screw Upper paper feed unit Upper paper feed unit Stop ring Bush Spring Spring Shaft holder ...

Page 64: ...rom the upper paper feed unit 11 Remove the collar and the cassette paper feed pulley from the upper paper feed shaft 12 Replace the cassette forwarding pulley and cassette paper feed pulley and refit all the removed parts Figure 1 5 10 Cassette forwarding pulley Paper feed pulley shaft Cassette paper feed pulley Collar ...

Page 65: ...3MH 1 5 8 This page is intentionally left blank ...

Page 66: ... the rotation of the cassette for warding pulley and cassette paper feed pulley The cassette separation pulley prevents multiple sheets from being fed at one time via the torque limiter Figure 2 1 1 Paper feeder 8 7 6 5 2 1 4 3 1 Cassette forwarding pulley 2 Cassette paper feed pulley 3 Cassette separation pulley 4 Cassette operation plate 5 Feed pulley 6 Feed roller 7 Cassette feed switch CFSW 8 ...

Page 67: ...H 2 1 2 Figure 2 1 2 Paper feeder block diagram CPSW CFSW CLT_RE FEED YC4 5 6 8 YC5 2 YC4 4 YC8 2 YC6 2 YC9 2 3 4 5 YC3 YC9 CMPWB EPWB PE CPWSW CPLSW SIZEA SIZEB SIZEC SIZED CPFCL MOTA MOTB MOTA MOTAB CDM ...

Page 68: ... 2 2 1 Electrical parts layout 1 PWBs Figure 2 2 1 PWBs 1 Cassette main PWB CMPWB Controls electrical components of the paper feeder 2 Cassette heater PWB CHPWB Relays the cassette heater power 1 2 Machine front Machine inside Machine rear ...

Page 69: ...ver is opened 2 Cassette feed switch CFSW Detects a paper misfeed 3 Cassette paper switch CPSW Detects the presence of paper in the cassette 4 Cassette paper size length switch CPLSW Detects the length of paper in the cassette 5 Cassette paper size width switch CPWSW Detects the width of paper in the cassette 1 2 3 5 4 Machine front Machine inside Machine rear ...

Page 70: ...ers 1 Cassette drive motor CDM Drives the paper feeder 2 Cassette paper feed clutch CPFCL Primary paper feed from the cassette 3 Cassette heater CH Dehumidifies the cassette section Option 1 2 3 Machine front Machine inside Machine rear ...

Page 71: ...3MH 2 2 4 This page is intentionally left blank ...

Page 72: ...MH 2 3 1 2 3 Operation of the PWBs 2 3 1 Cassette main PWB Figure 2 3 1 Cassette main PWB silk screen diagram YC2 YC1 YC3 YC7 U2 YC9 YC8 YC4 YC5 SW1 YC6 1 1 A1 1 1 1 1 1 1 2 3 4 8 3 2 5 7 A13 B13 B1 2 2 ...

Page 73: ...Paper feeder select signal 2 A13 RDY O 0 5 V DC Paper feeder ready signal B1 RDY I 0 5 V DC Paper feeder ready signal B2 SEL2 O 0 5 V DC Paper feeder select signal 2 B3 SEL1 O 0 5 V DC Paper feeder select signal 1 B4 SEL0 O 0 5 V DC Paper feeder select signal 0 B5 SCLK O 0 5 V DC pulse Paper feeder clock signal B6 SDO I 0 5 V DC pulse Paper feeder serial communication data signal B7 SDI O 0 5 V DC...

Page 74: ...t to CFSW YC8 1 24V O 24 V DC 24 V DC power output to CPFCL Connected to the cas sette paper feed clutch 2 CLT_RE O 0 24 V DC CPFCL On Off YC9 1 24V O 24 V DC 24 V DC power output to CDM Connected to the cas sette drive motor 2 MOTA O 0 24 V DC pulse CDM drive control signal 3 MOTB O 0 24 V DC pulse CDM drive control signal 4 MOTA O 0 24 V DC pulse CDM drive control signal 5 MOTB O 0 24 V DC pulse...

Page 75: ...3MH 2 3 4 This page is intentionally left blank ...

Page 76: ...utions Page Paper feed section Cassette paper feed pulley Check or replace User call Clean it with alcohol if it is dirty Replace it if any problem such as flawed or worn state is found P 1 5 5 Cassette separation pulley Check or replace User call Clean it with alcohol if it is dirty Replace it if any problem such as flawed or worn state is found P 1 5 3 Cassette forwarding pulley Check or replace...

Page 77: ...V2PF SGND 5V2PF SGND LOPSDO LOPSDI LOPSCLK LOPSEL0 LOPSEL1 LOPSEL2 LOPSRDY 5V SGND 5V SGND 5V SGND SDI SDO SCLK SEL0 SEL1 SEL2 RDY 16 15 13 12 1 2 3 4 5 6 7 8 9 10 11 PGND 24V1 5V2PF SGND 5V2PF SGND LOPSDO LOPSDI LOPSCLK LOPSEL0 LOPSEL1 LOPSEL2 LOPSRDY B1 B2 B3 B4 B5 B6 B7 B8 B9 B10 B11 B12 B13 RDY SEL2 SEL1 SEL0 SCLK SDO SDI SGND 5V SGND 5V SGND 5V 1 2 3 4 5 6 7 8 1 2 3 4 1 2 3 1 2 1 2 3 4 5 CLCS...

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