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Oki C7400n Service Manual

Also see for C7000: Limited warrantyInstallation instructionsBrochure & specsSetup guideService manual

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Contents
  1. service manual
  2. Table Of Contents
  3. Table Of Contents
  4. Table Of Contents
  5. System Configuration
  6. Printer Configuration
  7. Option Configuration
  8. Specifications
  9. OPERATION DESCRIPTION
  10. Main Board (CRM PWB)
  11. Engine Controller Board (K71 PWB)
  12. Power Units
  13. Mechanical Processes
  14. Electrophotographic process
  15. Paper running process
  16. Sensor
  17. Other sensors
  18. Color Misalignment Correction
  19. Paper Jam Detection
  20. Cover-Open
  21. Toner Low Detection
  22. Page Size Detection
  23. Operation at Power-on
  24. Color Misalignment Detection
  25. Version Read of Units Replaced Periodically
  26. Precautions in Replacing Parts
  27. Parts layout
  28. Replacing Parts
  29. Top Cover
  30. LED Assy/ LED Assy Spring
  31. Top Cover Unit
  32. Control Panel Assy/ Control Panel Bezel/ LED Control PWB/ Toner Sensors Stacker Full Sensor/ Control Panel/ Control Panel Tape Harness/ Eject Rollers
  33. Top Cover Handle/ Top Cover Latch/ Top Cover Latch Spring
  34. Eject Guide Assy
  35. Cassette Assy/ Front Cover Assy/ Front Cover Inner Baffle
  36. Retard Pad Assy/ Retard Pad Assy Spring
  37. Feed Roller and Nudger Roller
  38. Rear Cover
  39. Face-Up Tray
  40. Left Side Cover
  41. Right Side Cover
  42. Multipurpose Tray Assy/ Multipurpose Tray Cover Assy/ Links Multipurpose Tray Top Cover/ Multipurpose Tray Drive Gear
  43. Drum Contact Assys
  44. Registration Roller Assy (A)/ Registration Drive Gear (A)
  45. Registration Roller Assy (B)
  46. Registration Clutch and Registration Motor Assy
  47. Main Cooling Fan
  48. Color Registration Sensor Assy
  49. Duplex Guide Assy
  50. Electrical Chassis Cooling Fan
  51. Printer Engine Controller PWB
  52. Printer Unit Chassis
  53. Entrance Cassette Sensor Actuator
  54. Entrance Sensor PWB
  55. Entrance MT Sensor Actuator and Entrance Belt Sensor Actuator
  56. Fuser Exit Roller
  57. Exit Sensor Assy
  58. Fuser Latching Handle (L)
  59. Belt Motor Assy
  60. Fuser Latching Handle (R)
  61. Main Motor Assy
  62. Main Feeder Drive Motor
  63. Contact Assy/ Left Plate Assy
  64. Low Voltage Power Supply
  65. High voltage power supply
  66. Main Feed Assy
  67. Cassette/ Left Guide Assy
  68. Cassette/ Right Guide Assy
  69. Fuser Unit
  70. Belt Unit
  71. Duplex Unit
  72. Guide Rails (L) and (R)
  73. Duplex Transport Assembly
  74. CU Assy
  75. Maintenance Modes and Their Functions
  76. Engine maintenance mode
  77. Switch scan test
  78. Motor and clutch test
  79. Test printing
  80. NVM initialization
  81. Consumable counter display
  82. Error Messages and their Details
  83. CRM board adjustments
  84. Short plug settings
  85. Adjustments after Parts Replacement
  86. EEPROM replacement after CRM board replacement
  87. Color Balance Adjustment
  88. Parts Replaced Periodically
  89. TROUBLESHOOTING PROCEDURES
  90. LCD messages list
  91. Preparation for troubleshooting
  92. Troubleshooting image problems
  93. Program/Font ROM Layouts
  94. Parts List
  95. main assembly
  96. top cover assembly
  97. APPENDIX A CENTRONICS PARALLEL INTERFACE
  98. APPENDIX B 2ND/3RD TRAY MAINTENANCE
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This manual is suitable for:
C7000C7400n
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