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41316401TH Rev.9

Oki Data CONFIDENTIAL

No.

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

Q’ty

/Unit

1

1

1

1

1

1

1

1

1

1

(1)

(1)

(1)

(1)

(1)

1

1

1

1

1

1

1

2

1

Patrs No.

41377401

41716809

8164323M0000

41356111

41437418

41437414

41437410

41437419

41437415

41437411

41376902

41437302

41376005

41376004

41376002

41848501

41278601

41278701

41410201

41467401

41254601

41723901

41723901

4LB-102100-2A

Remarks

1200dpi-ODA

1200dpi-OEL

1200dpi-APS

1200dpi Duplex-ODA

1200dpi Duplex-OEL

1200dpi Duplex-APS

Option-OEL

Option-APS

Option-ODA

Option-OEL

Option-APS

ECO-C7400-093

ECO-C7400-093

ECO-C7400-093

ECO-C7400-093

Name

Plate-Indicator

PCB Assy-SWA

EEPROM(CU)

Board-TNO

Board-Memory 64MB

Board-Memory 64MB

Board-Memory 64MB

Board-Memory 128MB

Board-Memory 128MB

Board-Memory 128MB

Board-MLET B09

Board-MLET B09

HDD Assy

HDD Assy

HDD Assy

Board Assy.-CU(Maintenance)

Guide-Rail(A)

Guide-Rail(B)

Motor-Fan

Plate-FG(Centro)

Plate-Blank

Screw

Screw

Collar

per

500

3

3

3

3

3

3

3

3

3

3

(3)

(3)

(3)

(3)

(3)

3

3

3

3

3

3

-

-

-

per

1000

6

6

6

6

6

6

6

6

6

6

(6)

(6)

(6)

(6)

(6)

6

6

6

6

6

6

-

-

-

per

2000

12

12

12

12

12

12

12

12

12

12

(12)

(12)

(12)

(12)

(12)

12

12

12

12

12

12

-

-

-

Recommended Q’ty/Year

Table 7-1-3/3

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Содержание C7400

Страница 1: ...41316401TH Rev 9 1 157 Oki Data CONFIDENTIAL C7400 C7200 Color LED Page Printer MAINTENANCE MANUAL ODA OEL INT 2002 12 12 Rev 9...

Страница 2: ...1 E4 Murakami 3 2000 12 04 NIP9 Yamazaki 4 2000 12 15 NIP9 Yamazaki 5 2001 05 15 CN11 Kasuya 6 2001 10 12 NP33 YAMAZAKI 7 2002 05 28 NP33 YAMAZAKI 8 2002 08 09 9 2002 12 12 NP34 Ueda Rev No Date No Co...

Страница 3: ...ange without prior notice Inpreparingthedocument effortshavebeenmadetoensurethattheinformationinitisaccurate However errors may be crept into the document Oki Data assumes no responsibility for any da...

Страница 4: ...er 30 2 3 10 Rear Cover 31 2 3 11 Face Up Tray 32 2 3 12 Left Side Cover 33 2 3 13 Right Side Cover 34 2 3 14 Multipurpose Tray Assy Multipurpose Tray Cover Assy Links Multipurpose Tray Top Cover Mult...

Страница 5: ...71 3 1 2 3 Switch scan test 72 3 1 2 4 Motor and clutch test 75 3 1 2 5 Test printing 77 3 1 2 6 NVM initialization 81 3 1 2 7 Consumable counter display 82 3 1 2 8 Consumable counter display continuo...

Страница 6: ...100 5 5 3 Troubleshooting image problems 111 6 CONNECTION DIAGRAM 125 6 1 Resistance Checks 125 6 2 Program Font ROM Layouts 129 7 Parts List 133 APPENDIX A CENTRONICS PARALLEL INTERFACE 149 APPENDIX...

Страница 7: ...istors Paper size sensor 4 bits Paper empty sensor Paper near empty sensor MT paper empty sensor FF home switch Loading sensor 1 Loading sensor 2 C ID Unit M ID Unit Y ID Unit K ID Unit C ID M ID Y ID...

Страница 8: ...on The inside of the printers is composed of the followings Electrophotographic Processor Paper Paths Controller Block CU and PU Operator Panel Power Units High Voltage Unit and Low Voltage Unit Figur...

Страница 9: ...i Data CONFIDENTIAL 1 3 Option Configuration The followings are available as options on the C7400 C7200 of printers 1 2nd Tray 3rd Tray 2 Duplex Unit 3 Expansion Memory 64 128 256 MB 4 Internal Hard D...

Страница 10: ...20pagesperminute Transparency 12pagesperminute Postal Card Label Thick Paper 8 pages per minute 5 Resolution 600 600 dots per inch 6 Power Input 100VAC 10 7 Power Consumption Peak 1300W Normal Operati...

Страница 11: ...e Max One Year 14 to 109 4 10 to 43 With drum and toner Transport Max One Month 20 to 122 29 to 50 With drum and without toner Transport Max One Month 20 to 122 29 to 50 With drum and toner Humidity H...

Страница 12: ...printer or the floor 2 PARTS REPLACEMENT This section describes the procedure for replacing the parts assemblies and units in the field The replacing procedure is given for detachment To attach use th...

Страница 13: ...intenance Tools No No 1 100 Philips screwdriver Q ty Use for Remark Maintenance Tools 1 2 3 4 5 6 8 No 2 200 Philips magnetic screwdriver No 3 100 screwdriver No 5 200 screwdriver Digital multimeter P...

Страница 14: ...41316401TH Rev 9 14 Oki Data CONFIDENTIAL 2 2 Parts layout Figure 2 1 A B A B B A A B...

Страница 15: ...41316401TH Rev 9 15 Oki Data CONFIDENTIAL Top Cover Assy Figure 2 2...

Страница 16: ...41316401TH Rev 9 16 Oki Data CONFIDENTIAL Printer Unit 1 2 Figure 2 3 A A...

Страница 17: ...41316401TH Rev 9 17 Oki Data CONFIDENTIAL Printer Unit 2 2 Figure 2 4 45...

Страница 18: ...41316401TH Rev 9 18 Oki Data CONFIDENTIAL Cassette Guide Assy L R Figure 2 5 A B B A C C C C...

Страница 19: ...41316401TH Rev 9 19 Oki Data CONFIDENTIAL Duplex Unit A B D C A B C D E E F G G F Figure 2 6...

Страница 20: ...2 3 39 40349701 Plastic Roller 2 3 39 40928101 Cassette Spring 2 3 39 4PP4076 5359P001 Cassette Lock 2 3 39 4PP4043 4526P001 Cassette Lock Spring 2 3 39 4PB4016 1960P002 2 Foot 2 3 39 40841301 Fuser L...

Страница 21: ...ensor 2 3 4 40860601 Z 4 Eject Roller 2 3 4 41297301 Control Panel Assy 2 3 4 2381005P0015 Control Panel Tape Harness 2 3 4 41309601 LED Harness K 2 3 4 41309602 LED HarnessY 2 3 4 41309603 LED Harnes...

Страница 22: ...41316401TH Rev 9 22 Oki Data CONFIDENTIAL 2 1 1 1 2 3 1 Top Cover 1 Open the Top Cover assy 2 Remove the nine screws 1 to detach the top cover 2 Figure 2 3 1 Top Cover...

Страница 23: ...1 2 Remove the three cables and unhook the LED Assy 2 at two places to demount it the two springs 3 become detached together with the LED Assy 2 3 Remove the LED connector 4 When assembling attach th...

Страница 24: ...ar cover see section 2 3 10 3 Remove the left side cover see section 2 3 12 4 Remove the right side cover see section 2 3 13 5 Remove the shield plates A and B see section 2 3 22 and unplug the connec...

Страница 25: ...ess D 4 Remove the top cover unit see section 2 3 3 5 Unscrew the four screws 3 to remove the earth plate 4 6 Remove the two screws 5 unhook all the connectors 6 and demount the LED control PWB 7 7 Re...

Страница 26: ...le Top Cover Latch Top Cover Latch Spring 1 Remove the two screws 1 to detach the top cover handle 2 and disengage the top cover latch 3 at the same time the two top cover latch springs 4 become detac...

Страница 27: ...41316401TH Rev 9 27 Oki Data CONFIDENTIAL 1 1 1 2 2 3 6 Eject Guide Assy 1 Remove the five screws 1 to detach the eject guide Assy 2 Figure 2 3 6 Eject Guide Assy...

Страница 28: ...ette Assy Front Cover Assy Front Cover Inner Baffle 1 Detach the cassette Assy 1 2 Open the front cover 2 and disengage it at two places to detach it 3 Detach the front cover inner baffle 3 Figure 2 3...

Страница 29: ...Data CONFIDENTIAL 1 3 2 2 3 8 Retard Pad Assy Retard Pad Assy Spring 1 Remove the cassette 1 2 Detach the retard pad Assy 2 at the same time the spring 3 becomes detached Figure 2 3 8 Retard Pad Assy...

Страница 30: ...9 30 Oki Data CONFIDENTIAL 1 2 2 3 9 Feed Roller and Nudger Roller 1 Remove the cassette 2 Unlatch and demount the feed roller 1 3 Unlatch and demount the nudger roller 2 Figure 2 3 9 Feed Roller and...

Страница 31: ...3 2 2 2 3 10 Rear Cover 1 Remove the left side cover see section 2 3 12 2 Remove the four screws 2 to detach the rear cover 1 Note When attaching the rear cover take care not to allow the spring 3 to...

Страница 32: ...41316401TH Rev 9 32 Oki Data CONFIDENTIAL 1 2 3 11 Face Up Tray 1 Open the face up tray 1 in the arrow direction and disengage it at two places to detach it Figure 2 3 11 Face Up Tray...

Страница 33: ...3 Oki Data CONFIDENTIAL 4 4 1 4 5 3 2 2 3 12 Left Side Cover 1 Open the top cover 1 2 Open the front cover 2 and undo the screw 3 3 Remove the four screws 4 to detach the left side cover 5 Figure 2 3...

Страница 34: ...Oki Data CONFIDENTIAL 1 2 3 5 4 4 2 3 13 Right Side Cover 1 Open the top cover 1 2 Open the front cover 2 and undo the screw 3 2 Remove the four screws 4 to detach the right side cover 5 Figure 2 3 1...

Страница 35: ...he three screws 1 to detach the multipurpose tray top cover 2 5 Remove the three screws 3 two of them are black and the connector to detach the multipurpose tray 4 6 Disengage A and B at both sides of...

Страница 36: ...ev 9 36 Oki Data CONFIDENTIAL 1 2 3 15 Drum Contact Assys 1 Insert a flatblade screwdriver between the printer case and the drum contact Assy 1 to demount the drum contact Assy 1 Figure 2 3 15 Drum Co...

Страница 37: ...t side cover see section 2 3 12 2 Remove the right side cover see section 2 3 13 3 Remove the multipurpose tray see section 2 3 14 4 Remove the four screws 1 to demount the registration roller Assy A...

Страница 38: ...ssy 2 Open the front cover 3 Remove the right side cover see section 2 3 13 4 Remove the left plate Assy see section 2 3 22 5 Remove the registration clutch see section 2 3 18 7 Unscrew the four screw...

Страница 39: ...de cover see section 2 3 12 2 Remove the left plate Assy see section 2 3 22 3 Remove the connector and the E ring 1 then remove the two screws 3 the earth 4 and the registration clutch 2 4 Remove the...

Страница 40: ...Data CONFIDENTIAL 1 3 2 Outlet 2 3 19 Main Cooling Fan 1 Unhook the connector 1 and remove the screw 2 and the cooling fan 3 Note When attaching the cooling fan observe its correct orientation Figure...

Страница 41: ...ENTIAL 1 1 2 3 Connectors 2 3 20 Color Registration Sensor Assy 1 Remove the two screws 1 and the two connectors to demount the color registration sensor Assy 2 2 Remove the earth plate B 3 Figure 2 3...

Страница 42: ...41316401TH Rev 9 42 Oki Data CONFIDENTIAL 1 Main chassis rear 2 3 21 Duplex Guide Assy 1 Unlatch and demount the duplex guide 1 Figure 2 3 21 Duplex Guide Assy...

Страница 43: ...screws 1 to remove the plate A 2 2 Unscrew the four screws 3 to remove the shield plate B 4 3 Remove the printer engine controller PWB see section 2 3 30 4 Unscrew the eleven screws 5 to remove the sh...

Страница 44: ...r Engine Controller PWB 1 Remove the right side cover see section 2 3 13 2 Remove the left plate Assy see section 2 3 22 3 Remove the five screws 1 and all the connectors to demount the printer engine...

Страница 45: ...two screws 1 and remove the AC inlet 2 2 Unscrew the four black screws 3 and five screws 4 to detach the printer unit chassis 5 3 Unscrew the four black screws 6 and remove the left top cover spring A...

Страница 46: ...3 25 Entrance Cassette Sensor Actuator 1 Remove the printer unit chassis see section 2 3 24 2 Turn over the main chassis 3 Remove the two clamps with tweezers to demount the entrance cassette sensor...

Страница 47: ...9 47 Oki Data CONFIDENTIAL 1 2 2 3 26 Entrance Sensor PWB 1 Remove the registration roller Assy B see section 2 3 17 2 Remove the two screws 1 to demount the entrance sensor PWB 2 Figure 2 3 26 Entra...

Страница 48: ...ator and Entrance Belt Sensor Actuator 1 Remove the entrance sensor PWB R71 see section 2 3 26 2 Unlatch and detach the entrance MT sensor actuator 1 3 Unlatch and detach the entrance belt actuator 2...

Страница 49: ...Unscrew the screw 3 to remove the fuser exit roller contact 4 3 Remove the fuser drive gear A 5 and fuser drive gear A 6 4 Unscrew the screw 7 to remove the fuser drive gear C 8 5 Unlatch and detach t...

Страница 50: ...50 Oki Data CONFIDENTIAL 1 2 2 3 29 Exit Sensor Assy 1 Remove the fuser exit roller see section 2 3 28 2 Remove the screw 1 and connector to demount the red and blue exit sensor Assy 2 Figure 2 3 29...

Страница 51: ...TH Rev 9 51 Oki Data CONFIDENTIAL 3 1 2 2 3 30 Fuser Latching Handle L 1 Remove the latching handle spring 1 2 Unscrew the screw 2 to detach the fuser latching handle L 3 Figure 2 3 30 Fuser Latching...

Страница 52: ...Data CONFIDENTIAL 2 1 3 1 2 3 31 Belt Motor Assy 1 Remove the fuser latching handle R see section 2 3 32 2 Remove the two screws 1 to detach the two connectors 2 3 Demount the belt motor Assy 3 Figure...

Страница 53: ...IAL 3 1 2 2 3 32 Fuser Latching Handle R 1 Remove the printer unit chassis see section 2 3 24 2 Remove the E ring 1 3 Remove the fuser latching handle spring 2 to detach the fuser latching handle R 3...

Страница 54: ...Oki Data CONFIDENTIAL 1 2 1 1 2 3 33 Main Motor Assy 1 Remove the belt motor Assy see section 2 3 31 2 Remove all the connectors 3 Remove the four screws 1 to demount the main motor Assy 2 Figure 2 3...

Страница 55: ...3 34 Main Feeder Drive Motor 1 Remove the two screws 1 to detach the main feeder drive motor 2 2 Unscrew the screw 3 to remove the main feeder drive motor bracket 4 3 Remove the main feeder drive moto...

Страница 56: ...2 1 1 2 3 35 Contact Assy Left Plate Assy 1 Remove the printer unit chassis see section 2 3 24 2 Remove the four screws 1 to detach the left plate Assy 2 3 Remove the screw 3 to detach the contact Ass...

Страница 57: ...Low Voltage Power Supply 1 Remove the printer unit chassis see section 2 3 24 2 Unhook the connector 1 3 Unscrew the screw 2 to remove the earth cable 3 4 Unscrew the six screws 4 to demount the low...

Страница 58: ...igh voltage power supply 1 Remove the contact Assy see section 2 3 35 2 Unhook the connector of the high voltage power supply 2 3 Remove the two screws 1 to detach the high voltage power supply 2 and...

Страница 59: ...is see section 2 3 24 2 Remove the low voltage power supply and high voltage power supply see sections 2 3 36 and 2 3 37 3 Unscrew the five screws 1 to remove the lower plate 2 4 Unscrew the four scre...

Страница 60: ...ection 2 3 38 3 Remove the three screws 1 to detach the left cassette guide Assy 2 At the same time the earth plate 3 becomes detached 4 Remove the cassette lift spring 4 then remove the plastic slide...

Страница 61: ...ed 4 Remove the cassette lift spring 4 then detach the plastic slide 5 the cassette lift arm L 6 and the plastic roller 7 5 Unscrew the screw 8 to remove the paper size actuator 9 6 Unscrew the screw...

Страница 62: ...01TH Rev 9 62 Oki Data CONFIDENTIAL 3 1 2 2 2 3 41 Fuser Unit 1 Open the top cover 1 2 Push the right and left fuser levers blue 2 in the arrow direction to detach the fuser unit 3 Figure 2 3 41 Fuser...

Страница 63: ...ki Data CONFIDENTIAL 1 2 3 Handle blue 2 3 42 Belt Unit 1 Open the top cover 1 2 Remove the I D unit 3 Push the lever blue 2 in the arrow direction raise the handle blue and detach the belt unit 3 Fig...

Страница 64: ...IDENTIAL 1 Latch Latch 2 3 43 Duplex Unit 1 Remove the cassette Assy the front cover Assy and the front cover inner baffle 2 Unlatch the rear at the right and left and pull the duplex unit 1 toward th...

Страница 65: ...H Rev 9 65 Oki Data CONFIDENTIAL 1 1 3 2 1 1 2 3 44 Guide Rails L and R 1 Remove the duplex unit see section 2 3 43 2 Remove the six screws 1 to detach the guide rails L 2 and R 3 Figure 2 3 44 Guide...

Страница 66: ...H then detach the roller I 13 Unscrew the screw J to remove the earth K 14 Detach the gear L and bush M At the same time the mini pitch belt N becomes detached 15 Detach the gear O and bush P then det...

Страница 67: ...G F Duplex transport sensor 2 2 3 2 2 V 4 F D E L M N K J Y Z T S a f 5 g c b 5 X 9 8 6 7 V U W e _ Q I P O 0 A B C H G R d 1 Idle roller spring Duplex transfer Assy Cord duplex connector Assy Idle ro...

Страница 68: ...Pulling out Controller Board 1 Undo the two screws 1 2 Pull the controller board 2 out 3 Place the controller board 2 on a flat table 2 Detaching Fan 1 Remove the connector 3 2 Remove the two screws...

Страница 69: ...screw 9 and four screws 0 to detach the plate support A and the guide rail AB 3 Remove the two screws C to detach the guide rail BD 4 Remove the two screws E and two screws F and the plate FG Centro G...

Страница 70: ...SHIFT TIME item of SYSTEM CONFIG MENU Implements fine adjustment of BLACK printing on normal paper when unclear characters or spots are often found on print results With dispersed or snowed printing i...

Страница 71: ...he following operator panel layout 3 1 2 2 General self diagnosis mode level 1 Following is the menu of the general self diagnosis mode Switch Scan Test LED Head Test Motor and Clutch Tests Test Patte...

Страница 72: ...etails 4 When the 7 7 7 7 7 key is touched the SWITCH SCAN number goes back to an indication view stops blinking 5 Repeat steps 2 through 4 as required 6 To end the test press the 4 4 4 4 4 key the di...

Страница 73: ...ensor Starker full sensor Exit sensor Duplex in sensor Duplex rear sensor Duplex front sensor Color registration sensor L Color registration sensor R Paper size 1 2 3 and 4 switch Paper empty sensor E...

Страница 74: ...H L 2 Cassette 1 Paper Near Empty Sensor Exit Sensor Toner C Sensor Upper Cover Switch MT Paper Empty Switch Cassette 1 Paper Size 2 Switch Color Registration Sensor R Temperature Sensor Duplex Rear S...

Страница 75: ...blinks then the corresponding unit is driven for 10 seconds refer to Figure 3 3 Note The view of step 2 is restored after 10 second driving and with the press of the corresponding switch again the un...

Страница 76: ...DUP REAR CLUTCH OPTION CASSETTE 2 MOTOR OPTION CASSETTE2 FEED ROLLER OPTION CASSETTE3 FEEDER MOTOR OPTION CASSETTE3 ROLLER CLUTCH OPTION ID UP DOWN FAN1 TEST POWER UNIT FAN FAN2 TEST CONTROL BLOCK FAN...

Страница 77: ...he 7 7 7 7 7 key decrements a setting The last displayed setting is applied Repeat step 3 as necessary A value in the shaded section is initial The set values are applicable only to this test mode No...

Страница 78: ...alue in units of C T Environmental Temperature Measurement in units of C H Environmental Humidity Measurement in units of The display is changed at the press of the 3 3 3 3 3 key YTR MTR CTR and KTR m...

Страница 79: ...edures To suspend test printing press Key 7 7 7 7 7 At the start of or during test printing if any alarm listed under the Detail column in the table specified below is found the corresponding alarm me...

Страница 80: ...41316401TH Rev 9 80 Oki Data CONFIDENTIAL 5 Steps 2 through 4 to be repeated on an as needed basis 6 Touch the 4 key to end the test the display is restored to step 1 Pattern 5 Pattern 6 Pattern 7...

Страница 81: ...3 3 2 2 Initialization Items in Table 2 Initialization Item Drum Counter Belt Unit Counter Fuser Unit Counter Toner Counter Black Yellow Magenta Cyan Black Yellow Magenta Cyan Detail Initializes the...

Страница 82: ...y item the press of the 3 3 3 3 3 and 7 7 7 7 7 keys is invalid 3 Pressing the 4 4 4 4 4 key ends the test flips back to the display of 1 Upper Display FUSER UNIT TR BELT UNIT BLACK ID UNIT YELLOW ID...

Страница 83: ...R ERROR HOPPING ERROR TRAY1 HOPPING ERROR TRAY2 HOPPING ERROR TRAY3 HOPPING ERROR FRONT FEEDER Details Black ID up down error Black ID unit fuse cut error Black toner sensor error Black LED head error...

Страница 84: ...uplex unit hopping error Tray4 hopping error Tray5 hopping error Feed jam Transport jam Exit jam Duplex unit input jam Duplex unit entry jam Duplex unit reversal jam Tray1 hopping error Tray2 hopping...

Страница 85: ...M LIFE OVER Details Operation cord trap error Power unit LSI error Opeator panel I F error PU fan motor error Paper size error No paper is left in the selected tray No paper is left in Tray1 No paper...

Страница 86: ...LEX INFEED TRAY4 PX703 INFEED TRAY5 PX703 Details Feed jam Transport jam Exit jam Duplex unit input jam Duplex unit entry jam Duplex unit reversal jam Tray1 hopping error Tray2 hopping error Tray3 hop...

Страница 87: ...Destinations Model Name Setting TheCUprogramautomaticallydeterminesandswitchesbetweenfollowingprinterspecifications LED head width LED head resolution presence or absence of Japanese fonts Heisei font...

Страница 88: ...0 3 3 With HDD 0 0 3 3 File List Printing A list of files stored on a HDD or in ROM is printed Operation Press of Switches Without HDD 0 3 1 3 With HDD 0 0 3 1 3 Font List Printing PCL A list of PCL f...

Страница 89: ...nction is disabled The printer must be switched from the factory mode to the shipping mode using the following setting procedure Changing the setting using operator panel 1 Remove the main controller...

Страница 90: ...oard where the destination of the new board must be set See Section 3 1 3 SWA board adjustments for the setting procedure Item Fuser Transfer Belt Black Imaging Drum Cyan Imaging Drum Magenta Imaging...

Страница 91: ...LOR MENU 3 Press 1 1 1 1 1 or 5 5 5 5 5 to display COLOR BALANCE CORRECTION PATTERN PRINT 4 Press 3 3 3 3 3 to start test printing 5 Press 1 1 1 1 1 to display COLOR BALANCE CORRECTION RESET 6 Choose...

Страница 92: ...41316401TH Rev 9 92 Oki Data CONFIDENTIAL...

Страница 93: ...lacement Replace the toner cartridge Replace the toner cartridge Reset the drum counter after the replacement of the drum Reset the fuser counter Reset the belt counter Note The The above periodic par...

Страница 94: ...gn matter to contact it 2 Do not expose the OPC drum to direct sunlight 3 Do not touch the fuser unit with hands as it is hot 4 Do not expose the image drums to light for five minutes or more at room...

Страница 95: ...the concerned RAM DIMM installed properly Can the printer recover from the error by replacing the RAM DIMM No Yes No Re install the concerned RAM DIMM Replace the RAM DIMM Replace the SWA board The E...

Страница 96: ...replacement Replace the PU board Service Call 073 Error 075 Error Service Call 120 Error 122 Error Video Overrun Detect Is the CU Assy installed properly Can the printer recover from the error by repl...

Страница 97: ...ayed 2 Does the error repeat Yes Yes Turn off on the printer Replace the Thermistor and turn off the printer Leave it for 30 min Service Call 172 Error 176 Error High temperature error detected at The...

Страница 98: ...Fuser unit or btwn the Fuser and paper ejection 1 Is a paper jammed in the Fuser unit or between the Y ID and Fuser unit 2 Is the Paper eject switch work normally Yes No Remove the jammed paper Replac...

Страница 99: ...after Belt unit replacement Yes No Check the belt life Replace the Belt unit immediately or at the next maintenance Replace Fuser The fuser counter has reached the lifevalue 1 Is the error message di...

Страница 100: ...procedure for handling the error NO Are the upper and lower lines of LCD on the operator panel black NO Check the power supply voltage 3 3V 5V 3 3V Vacant ICOP 20pin 5V Vacant PANEL 5pin NO Replace th...

Страница 101: ...e printer recovered from the error No Replace the operator panel cover Assy Yes End No Is 5V output to the power connector of the engine board 71K PWB Pins 11 12 13 and 14 5V Pins 3 4 5 6 25 26 27 and...

Страница 102: ...e the sensor board R71 PWB after checking the signal cable connection Yes Check the signal cable connection or replace the engine board No Has the paper loading jam occurred immediately after the pape...

Страница 103: ...tenance mode or check the signals on the FSENS connector pin of the engine board 71K PWB Pin 2 Entrance MT sensor No Replace the sensor board R71 PWB after checking the signal cable connection Yes Rep...

Страница 104: ...erly No Connect the cable properly Yes Replace the engine board No Has the paper feed jam occurred immediately after the paper drawing into the tray Yes Has the paper reached the write sensor Yes Go t...

Страница 105: ...r PARTTEMP pin 8 of the engine board 71K PWB No Replace the exit sensor after checking the signal cable connection Yes Replace the engine board No Is the face up stacker cover open or close completely...

Страница 106: ...n test in the system maintenance mode No Replace the defective sensor after checking the cable connection Yes Check the signal cable connection Is it connected properly No Connect the cable properly Y...

Страница 107: ...the defective sensor lever Yes Does the entrance belt sensor operate properly Move the sensor lever to check the sensor for proper operation through the switch scan test in the system maintenance mod...

Страница 108: ...oard after checking the cable connection Yes Do the IDU sensor terminals operate properly No Replace the defective gear or sensor terminals after checking the gear engagement and the sensor terminal o...

Страница 109: ...r broken or short circuited See Figure 5 1 Approx 190k to 980k at room temperatures of 0 to 43 C Yes Replace the fuser unit No No Has the fuser unit error occurred three minutes after power on No Go t...

Страница 110: ...r checking the cable connection Yes Replace the engine board Yes Has the low voltage power supply fan replaced Yes End No Replace the low voltage power supply fan Yes Does the engine board fan rotate...

Страница 111: ...ure 5 2 Image problem Flowchart No Light or faded image on whole page or color misalignment on whole page Figure 5 2 A 1 Dirty background Figure 5 2 B 2 Blank page Figure 5 2 C 3 Vertical belt or line...

Страница 112: ...yan KPOW connector pin 3 LED head Assy Black No Replace the junction board Y71 PWB Yes Replace the LED head Assy s after checking the cable connection No Replace the low voltage power unit after check...

Страница 113: ...y Magenta CPOW connector pin 3 LED head Assy Cyan KPOW connector pin 3 LED head Assy Black No Replace the junction board Y71 PWB Yes Replace the LED head Assy after checking the cable connection No Re...

Страница 114: ...ssy Black No Replace the junction board Y71 PWB Yes Replace the LED head Assy s after checking the cable connection No Is 32V output to the power connector of the engine board 71K PWB 3 8V Pins 7 to 1...

Страница 115: ...connection Has the problem been corrected Yes End No Is the engine board 71K PWB connected to the junction board Y71 PWB properly No Connect the engine board to the junction board properly Yes Replace...

Страница 116: ...PWB after checking the cable connection Has the problem been corrected Yes End No Is the engine board 71K PWB connected to the junction board properly No Connect the engine board to the junction boar...

Страница 117: ...No Replace the low voltage power unit Yes Does the resistance of the heat roller thermistor lie at the rated voltage See Figure 5 1 Approx 190k to 980k at room temperatures of 0 to 43 C No Replace the...

Страница 118: ...e image drum unit 57 8 mm Toner Supply Roller Replace the image drum unit 44 0 mm Charging Roller Replace the image drum unit 113 1 mm Fuser Upper Roller Replace the fuser unit Fuser Lower Roller Repl...

Страница 119: ...LED head Assy s after checking the cable connection No Replace the low voltage power unit after checking the cable connection Has the problem been corrected Yes End No Is 32V output to the power conn...

Страница 120: ...Press Key 1 three times to display REG ADJUST TEST Press Key 2 once to display REG ADJUST EXECUTE Press Key 3 to execute automatic color registration adjustment The motor starts rotating to adjust col...

Страница 121: ...color registration sensor cover stained Yes The sensor cover surface is not cleaned appropriately by the cleaning blade on the back of the shutter Replace the shutter and sensor cover to ensure suita...

Страница 122: ...corrected Yes End No Is the engine board 71K PWB connected to the junction board Y71 PWB properly No Connect the engine board to the junction board properly Yes Replace the EEPROM on the engine board...

Страница 123: ...the LED head Assy s after checking the cable connection No Replace the low voltage power unit after checking the cable connection Has the problem been corrected Yes End No Is 32V output to the power...

Страница 124: ...41316401TH Rev 9 124 Oki Data CONFIDENTIAL Figure 5 3 Ground Charging roller Developing roller Toner supply roller...

Страница 125: ...Unit Circuit Diagram Illustration Resistance Between pins 1 and 2 7 9 Between pins 3 and 4 7 9 Between pins 1 and 2 4 Between pins 3 and 4 4 Between pins 1 and 2 4 Between pins 3 and 4 4 Transport Bel...

Страница 126: ...uit Diagram Illustration Resistance Between pins 1 and 2 4 Between pins 3 and 4 4 Between pins 1 and 2 4 Between pins 3 and 4 4 Between pins 1 and 2 7 9 Between pins 3 and 4 7 9 Main Motor C Main Moto...

Страница 127: ...M 1 2 3 4 Unit Circuit Diagram Illustration Resistance Between pins 1 and 2 7 9 Between pins 3 and 4 7 9 Between pins 1 and 2 7 9 Between pins 3 and 4 7 9 Fuser Motor Feeder Motor Between pins 1 and...

Страница 128: ...lack 32 V 1 FANALM N 3 0 V 2 M White Red Black 32 V 1 FANALM N 3 0 V 2 M Yellow a 1 Upper roller 1 Upper Roller Side Between pins a and b Between pins c and d Open Between pins e and f 363k at 25 C 2...

Страница 129: ...ngine Controller PWB 71K PWB SW1 CPUFL1 FU4 FSENS JODEN PARTTEMP RSNS DUPLEX PSIZE HVOLT COVOPN POWER EEPROM FAN2 FAN1 HUMTMP CUIF FAN4 OPTN M1200 MPOW C1200 CPOW K1200 KPOW Y1200 YPOW TR10 REG DCL BE...

Страница 130: ...M DIMM 32MB to 256MB 3 DIMM sockets for program and fonts 1 85 1 85 1 1 84 3 84 4 SDRAM SDMM1 SDMM2 SDMM3 SDMM4 ROM CENT USB 2 3 18 36 1 19 1 4 PCICU A1 B1 C1 A36 B36 C36 IDE 1 2 49 50 Note The option...

Страница 131: ...L 3 LED Control PWB Y71 PWB POWER STUCK CPOW2 MPOW2 YPOW2 TNRSNSC TNRSNSM TNRSNSY OPTN KPOW2 TNRSNSK PANEL 4 Duplex Control PWB V71 PWB FU1 MAIN FSENS MOTOR CLUTCH RSENS INSENS 5 Control Panel PWB X71...

Страница 132: ...41316401TH Rev 9 132 Oki Data CONFIDENTIAL 6 N71 PWB JODEN 7 Entrance Sensor PWB R71 PWB HUM WRSNS INSNS1 INSNS2 TNR FSNS 8 Paper Size Sensing PWB PXC PWB CN11 SW3 SW1 SW2 SW4...

Страница 133: ...ata CONFIDENTIAL Figure 7 1 1 3 35 37 39 40 4 22 34 3 7 6 20 30 18 14 1 12 11 26 A A B 8 28 29 19 21 25 1 2 28 29 28 33 32 9 31 B A 29 29 28 A B 29 29 28 28 29 29 23 29 29 32 29 23 23 23 23 28 28 28 2...

Страница 134: ...41316401TH Rev 9 134 Oki Data CONFIDENTIAL A B A B C C C 13 29 23 C 29 10 24 24 23 23 Figure 7 1 2 3...

Страница 135: ...racket to support Motor Fan 46 41410201 a sheet metal to secure PCB Assy SWA 35 41716809 a gasket bonded to that sheet metal and screws attached to the assembly The member 35 PCB Assy SWA 41716809 whi...

Страница 136: ...ame Front Cover Assy Front Cover Inner Baffle Cassette Assy Retard Pad Assy Rear Cover Face Up Stacker Assy Left Side Cover Right Side Cover Multipurpose Tray Assy Multipurpose Tray Top Cover Link Mul...

Страница 137: ...nit Belt Unit ID Y ID M ID C ID K ID Y ID M ID C ID K Toner Cartridge_Type_C2_Y 10K Toner Cartridge_Type_C2_M 10K Toner Cartridge_Type_C2_C 10K Toner Cartridge_Type_C2_K 10K Toner Cartridge_Type_C2_Y...

Страница 138: ...L 1200dpi Duplex APS Option OEL Option APS Option ODA Option OEL Option APS ECO C7400 093 ECO C7400 093 ECO C7400 093 ECO C7400 093 Name Plate Indicator PCB Assy SWA EEPROM CU Board TNO Board Memory 6...

Страница 139: ...41316401TH Rev 9 139 Oki Data CONFIDENTIAL Figure 7 2 1 5 14 19 3 14 14 4 15 6 11 3 8 3 2 2 2 2 3 7 3 3 9 3 3 10 20 17 18 20 20 20 21 21 21 21 21 21 21 21 21 21 21 16 13 13 21...

Страница 140: ...Name Top Cover LED Assy 1200dpi LED Assy 1200dpi LED Assy 600dpi LED Assy Spring LED Control PWB Y71 Stacker Full Sensor Top Cover Inner Frame Kit LED Harness M LED Harness C LED Harness Y LED Harnes...

Страница 141: ...316401TH Rev 9 141 Oki Data CONFIDENTIAL Figure 7 3 1 2 3 16 19 18 5 6 17 2 4 47 21 25 26 8 13 7 12 14 28 23 27 1 10 9 11 51 15 30 31 29 22 22 24 1 50 51 51 51 51 51 51 51 51 51 51 51 51 51 51 51 A A...

Страница 142: ...41316401TH Rev 9 142 Oki Data CONFIDENTIAL 31 33 44 40 41 48 39 36 43 45 37 38 32 35 47 47 47 47 47 47 47 47 47 47 47 47 47 47 47 47 47 Figure 7 3 2 2...

Страница 143: ...istration Sensor Assy Registration Shutter Solenoid Registration Shutter Registration Shutter Spring Duplex Guide Assy Printer Unit Chassis Left Top Cover Spring Assy Right Top Cover Spring Assy Entra...

Страница 144: ...ECO C7400 001 Name Main Feeder Drive Motor Main Feeder Drive Gear A Main Feeder Drive Gear B Left Plate Assy Contact Assy Power Unit AC DC switching 115V Power Unit AC DC switching 115V Power Unit AC...

Страница 145: ...41316401TH Rev 9 145 Oki Data CONFIDENTIAL A B B A C C C C 16 15 11 6 21 16 12 14 19 16 11 16 5 1 4 3 2 19 19 20 20 20 20 20 20 19 19 19 19 19 19 Figure 7 4...

Страница 146: ...4083 2500P008 4PB4083 5670P002 41275901 Remarks ECO C7400 033 Name Main Feed Assy Feed Roller Nudger Roller Main Feeder Drive Gear Left Cassette Guide Assy Right Cassette Guide Assy Plastic Roller Pap...

Страница 147: ...41316401TH Rev 9 147 Oki Data CONFIDENTIAL A B D C A B C D E E F G G F 2 3 3 6 3 3 4 4 4 5 4 1 4 4 4 4 4 4 4 4 Figure 7 5...

Страница 148: ...o 41305301 4PB4043 4718P001 4PB4083 2500P010 4PB4083 2500P008 4PB4013 3100P006 41372901 41372903 41372907 Remarks ODA OEL APS Name Duplex Transport Assy Screw SP3 10 Screw T3 10 Screw T3 8 Screw M3 6...

Страница 149: ...quivalent of type 57RE 40360 830B D29 made by Daiichi Denshi Kogyo Cable Side 36 pin plug male Equivalent of type 57 30360 made by Daiichi Denshi Kogyo Equivalent of plug 552274 1 AMP 52073 1 AMP 2 Ca...

Страница 150: ...E PR Completion of data input 11 BUSY PR Printing operation Alarming Paper empty 12 PAPER END PR Paper empty 13 SELECT PR Select state on line 14 Auto Feed PR Mode switch request 15 Unassigned 16 0V S...

Страница 151: ...ion Mode Compatibility mode Nibble mode ECP mode Data Bit Length Compatibility 8 Nibble 4 ECP 9 bits Control Initial connection control in each mode Storing of data from host in receive buffer Busy co...

Страница 152: ...W BUSY INPUT PRIME SELECT ACKNOWLEDGE BUSY 50 s min By menu setting 5 s max c Off line Timing for switching to on line by on line SW d nlnit timing under enabling input prime signal Nibble Mode IEEE 1...

Страница 153: ...ENDIX B 2ND 3RD TRAY MAINTENANCE 1 Parts Replacement 1 1 Cover Idle Roller Assy 1 Unscrew the four screws 1 to remove the cover side 2 and the plate cover PCB 3 2 Unscrew the two screws 4 to demount t...

Страница 154: ...01TH Rev 9 154 Oki Data CONFIDENTIAL 3 4 2 1 1 1 1 2 1 2 PCB 1 Unscrew the four screws 1 to remove the plate cover PCB 2 2 Remove the connectors at seven places and the two screws 3 then demount the b...

Страница 155: ...six screws 2 and the eight screws 3 2 Remove the cover sides 4 and 5 the plate cover PCB 6 and the frame hopping Assy 7 3 Remove the E ring 8 the clutch 9 and the two screws 0 4 Unscrew the two screws...

Страница 156: ...41316401TH Rev 9 156 Oki Data CONFIDENTIAL 1 2 3 4 8 5 6 7 2 C7400 C7200 2nd 3rd Tray PARTS LIST...

Страница 157: ...C7400 023 ECO C7400 033 ECO C7400 033 Name 2nd 3rd Tray 500Sheet Feeder Assembly 2nd 3rd Tray 500Sheet Feeder Assembly Board V7X Cover Front OP Assy Idler Roller Assembly Lower Connector W harness Up...

Страница 158: ...OKI C7200 C7400 Color LED Page Printer Spare Parts List Extracted from C7200 C7400 Maintenance Manual ODA OEL INT 2002 12 12 Rev 9 41316401TH Rev 9...

Страница 159: ...ta CONFIDENTIAL Figure 7 1 1 3 35 37 39 40 4 22 34 3 7 6 20 30 18 14 1 12 11 26 A A B 8 28 29 19 21 25 1 2 28 29 28 33 32 9 31 B A 29 29 28 A B 29 29 28 28 29 29 23 29 29 32 29 23 23 23 23 28 28 28 29...

Страница 160: ...41316401TH Rev 9 Oki Data CONFIDENTIAL A B A B C C C 13 29 23 C 29 10 24 24 23 23 Figure 7 1 2 3...

Страница 161: ...cket to support Motor Fan 46 41410201 a sheet metal to secure PCB Assy SWA 35 41716809 a gasket bonded to that sheet metal and screws attached to the assembly The member 35 PCB Assy SWA 41716809 which...

Страница 162: ...e Front Cover Assy Front Cover Inner Baffle Cassette Assy Retard Pad Assy Rear Cover Face Up Stacker Assy Left Side Cover Right Side Cover Multipurpose Tray Assy Multipurpose Tray Top Cover Link Multi...

Страница 163: ...t Belt Unit ID Y ID M ID C ID K ID Y ID M ID C ID K Toner Cartridge_Type_C2_Y 10K Toner Cartridge_Type_C2_M 10K Toner Cartridge_Type_C2_C 10K Toner Cartridge_Type_C2_K 10K Toner Cartridge_Type_C2_Y 10...

Страница 164: ...1200dpi Duplex APS Option OEL Option APS Option ODA Option OEL Option APS ECO C7400 093 ECO C7400 093 ECO C7400 093 ECO C7400 093 Name Plate Indicator PCB Assy SWA EEPROM CU Board TNO Board Memory 64M...

Страница 165: ...41316401TH Rev 9 Oki Data CONFIDENTIAL Figure 7 2 1 5 14 19 3 14 14 4 15 6 11 3 8 3 2 2 2 2 3 7 3 3 9 3 3 10 20 17 18 20 20 20 21 21 21 21 21 21 21 21 21 21 21 16 13 13 21...

Страница 166: ...ame Top Cover LED Assy 1200dpi LED Assy 1200dpi LED Assy 600dpi LED Assy Spring LED Control PWB Y71 Stacker Full Sensor Top Cover Inner Frame Kit LED Harness M LED Harness C LED Harness Y LED Harness...

Страница 167: ...41316401TH Rev 9 Oki Data CONFIDENTIAL Figure 7 3 1 2 3 16 19 18 5 6 17 2 4 47 21 25 26 8 13 7 12 14 28 23 27 1 10 9 11 51 15 30 31 29 22 22 24 1 50 51 51 51 51 51 51 51 51 51 51 51 51 51 51 51 A A 49...

Страница 168: ...41316401TH Rev 9 Oki Data CONFIDENTIAL 31 33 44 40 41 48 39 36 43 45 37 38 32 35 47 47 47 47 47 47 47 47 47 47 47 47 47 47 47 47 47 Figure 7 3 2 2...

Страница 169: ...tration Sensor Assy Registration Shutter Solenoid Registration Shutter Registration Shutter Spring Duplex Guide Assy Printer Unit Chassis Left Top Cover Spring Assy Right Top Cover Spring Assy Entranc...

Страница 170: ...CO C7400 001 Name Main Feeder Drive Motor Main Feeder Drive Gear A Main Feeder Drive Gear B Left Plate Assy Contact Assy Power Unit AC DC switching 115V Power Unit AC DC switching 115V Power Unit AC D...

Страница 171: ...41316401TH Rev 9 Oki Data CONFIDENTIAL A B B A C C C C 16 15 11 6 21 16 12 14 19 16 11 16 5 1 4 3 2 19 19 20 20 20 20 20 20 19 19 19 19 19 19 Figure 7 4...

Страница 172: ...83 2500P008 4PB4083 5670P002 41275901 Remarks ECO C7400 033 Name Main Feed Assy Feed Roller Nudger Roller Main Feeder Drive Gear Left Cassette Guide Assy Right Cassette Guide Assy Plastic Roller Paper...

Страница 173: ...41316401TH Rev 9 Oki Data CONFIDENTIAL A B D C A B C D E E F G G F 2 3 3 6 3 3 4 4 4 5 4 1 4 4 4 4 4 4 4 4 Figure 7 5...

Страница 174: ...41305301 4PB4043 4718P001 4PB4083 2500P010 4PB4083 2500P008 4PB4013 3100P006 41372901 41372903 41372907 Remarks ODA OEL APS Name Duplex Transport Assy Screw SP3 10 Screw T3 10 Screw T3 8 Screw M3 6 Du...

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