OKI C7400 Error Codes list and solutions

OKI C7400 Error Codes list and solutions

– Compatible Printer model: OKI C7400
– OKI C7400 Error Code description:

• Code: –
• Display: Replace Belt
• Description: The belt counter has reached the life value.
• Troubleshooting Guides: 1) Is the error message displayed? 2) Does the error occur soon after Belt unit replacement?
  Check the belt life. Replace the Belt unit immediately or at the next maintenance.

• Code: –
• Display: Replace Fuser
• Description: The fuser counter has reached the lifevalue
• Troubleshooting Guides: 1) Is the error message displayed? 2) Does the error occur soon after Fuser unit replacement?
  Check the fuser life. Replace the Fuser unit immediately or at the next maintenance.

• Code: –
• Display: Job Offset Home Error
• Description: The Job offset assy does not operate or cannot detect the home position.
• Troubleshooting Guides: Does the Job offset assy operate normally?
  Replace the Job offset sensor. Replace the Job offset motor or Engine board.

• Code: –
• Display: Running Short of Paper in Tray
• Description: Running short of paper detected
• Troubleshooting Guides: Does only small mount of papers (approx. 30 sheets or less) remain?
  Load papers. Check the Paper near end sensor.

• Code: –
• Display: Disc Operation Error
• Description: HDD cannot be written.
• Troubleshooting Guides: Is the operating procedure correct?
  Confirm the procedure in the manual. Replace the HDD as it is broken.

• Code: 001 … 011
• Display: Service Call 001: Error ~ 011: Error
• Description: CPU Exception
• Troubleshooting Guides: Is the error message displayed again? Turn the printer off/on. Replace the SWA board. (The EEPROM needs replacement.)

• Code: 020
• Display: Service Call 020: Error
• Description: CU ROM Hash Check Error 1
• Troubleshooting Guides: Is the program ROM DIMM installed properly? Can the printer recover from the error by replacing the program ROM DIMM?
  Re-install the program ROM DIMM. Replace the program ROM DIMM. Replace the SWA board. (The EEPROM needs replacement.)

• Code: 030
• Display: Service Call 030: Error
• Description: CU Slot1 DIMM RAM Check Error
• Troubleshooting Guides: Is the concerned RAM DIMM installed properly? Can the printer recover from the error by replacing the RAM DIMM?
  Re-install the concerned RAM DIMM. Replace the RAM DIMM. Replace the SWA board. (The EEPROM needs replacement.)

• Code: 031
• Display: Service Call 031: Error
• Description: CU Slot2 DIMM RAM Check Error
• Troubleshooting Guides: Is the concerned RAM DIMM installed properly? Can the printer recover from the error by replacing the RAM DIMM?
  Re-install the concerned RAM DIMM. Replace the RAM DIMM. Replace the SWA board. (The EEPROM needs replacement.)

• Code: 032
• Display: Service Call 032: Error
• Description: CU Slot3 DIMM RAM Check Error
• Troubleshooting Guides: Is the concerned RAM DIMM installed properly? Can the printer recover from the error by replacing the RAM DIMM?
  Re-install the concerned RAM DIMM. Replace the RAM DIMM. Replace the SWA board. (The EEPROM needs replacement.)

• Code: 033
• Display: Service Call 033: Error
• Description: CU Slot4 DIMM RAM Check Error
• Troubleshooting Guides: Is the concerned RAM DIMM installed properly? Can the printer recover from the error by replacing the RAM DIMM?
  Re-install the concerned RAM DIMM. Replace the RAM DIMM. Replace the SWA board. (The EEPROM needs replacement.)

• Code: 034
• Display: Service Call 034: Error
• Description: RAM Configuration Error. The CU RAM installation or derwas not followed.
• Troubleshooting Guides: Is the installation order followed? Can the printer recover from the error by replacing the RAM DIMMs?
  Correct the installation order. Replace the RAM DIMMs. Replace the SWA board. (The EEPROM needs replacement.)

Solve OKI C7400 Error codes

• Code: 035
• Display: Service Call 035: Error
• Description: Slot1 RAM Spec Error. The CU RAM Slot1 DIMM specification is not supported.
• Troubleshooting Guides: Is the RAM DIMM a genuine part? Is the concerned RAM DIMM installed properly? Can the printer recover from the error by replacing the RAM DIMM?
  Use a genuine RAM DIMM. Re-install the concerned RAM DIMM. Replace the RAM DIMM. Replace the SWA board. (The EEPROM needs replacement.)

• Code: 036
• Display: Service Call 036: Error
• Description: Slot2 RAM Spec Error. The CU RAM Slot2 DIMM specification is not supported.
• Troubleshooting Guides: Is the RAM DIMM a genuine part? Is the concerned RAM DIMM installed properly? Can the printer recover from the error by replacing the RAM DIMM?
  Use a genuine RAM DIMM. Re-install the concerned RAM DIMM. Replace the RAM DIMM. Replace the SWA board. (The EEPROM needs replacement.)

• Code: 037
• Display: Service Call 037: Error
• Description: Slot3 RAM Spec Error. The CU RAM Slot3 DIMM specification is notsupported.
• Troubleshooting Guides: Is the RAM DIMM a genuine part? Is the concerned RAM DIMM installed properly? Can the printer recover from the error by replacing the RAM DIMM?
  Use a genuine RAM DIMM. Re-install the concerned RAM DIMM. Replace the RAM DIMM. Replace the SWA board. (The EEPROM needs replacement.)

• Code: 038
• Display: Service Call 038: Error
• Description: Slot4 RAM Spec Error. The CU RAM Slot4 DIMM specification is notsupported.
• Troubleshooting Guides: Is the RAM DIMM a genuine part? Is the concerned RAM DIMM installed properly? Can the printer recover from the error by replacing the RAM DIMM?
  Use a genuine RAM DIMM. Re-install the concerned RAM DIMM. Replace the RAM DIMM. Replace the SWA board. (The EEPROM needs replacement.)

• Code: 040
• Display: Service Call 040: Error
• Description: CU EEPROM Error
• Troubleshooting Guides: Can the printer recover from the error by replacing the EEPROM on the CU board?
  Replace the EEPROM. (Settings of the user must be restored on the new.) Replace the SWA board. (The EEPROM needs replacement.)

• Code: 041
• Display: Service Call 041: Error
• Description: U Flash Error. On-CU-board Flash ROM Error
• Troubleshooting Guides: Does the error message appear again? Yes Replace the SWA board. (The EEPROM needs replacement.)

• Code: 050
• Display: Service Call 050: Error
• Description: Operator Panel Error
• Troubleshooting Guides: Does the error message appear again? Yes See the flowchart for the problems with no LCD message displayed.

• Code: 051
• Display: Service Call 051: Error
• Description: CU Fan Error. On-CU-board CPU Cooling Fan Problem
• Troubleshooting Guides: Is the on-CU-board connector connected properly? Can the printer recover from the error by replacing the fan?
  Connect the connector properly. Replace the fan. Replace the SWA board. (The EEPROM needs replacement.)

• Code: 063
• Display: Service Call 063: Error
• Description: Network Comm.Error. CU ~ NIC H/W I/F Problem
• Troubleshooting Guides: Is the network board installed properly? Can the printer recover from the error by replacing the network board?
  Install the network board properly. Replace the network board. Replace the SWA board. (The EEPROM needs replacement.)

• Code: 070
• Display: Service Call 070: Error
• Description: CANT_HAPPEN. PS F/W Problem Detection
• Troubleshooting Guides: Is it recovered by turning the printer off/on. No Replace the SWA board. (The EEPROM needs replacement.)

• Code: 072
• Display: Service Call 072: Error
• Description: Engine Communication Error PU ~ CU I/F Error
• Troubleshooting Guides: Is the CU Assy installed properly? Can the printer recover from the error by replacing the SWA board?
  Install the CU Assy properly. Replace the SWA board. (The EEPROM needs replacement.) Replace the PU board.

• Code: 073 … 075
• Display: Service Call 073: Error ~ 075: Error
• Description: Video Overrun Detect
• Troubleshooting Guides: Is the CU Assy installed properly? Can the printer recover from the error by replacing the SWA board?
  Install the CU Assy properly. Replace the SWA board. (The EEPROM needs replacement.)

• Code: 100, 101
• Display: Service Call 100/101:Error
• Description: Error detected at Engine ROM Checksum when turned on.
• Troubleshooting Guides: Replace the PU board. Replace the engine control board (71K).

• Code: 102
• Display: Service Call 102: Error
• Description: Error detected at Engine RAM Read/Write when turned on.
• Troubleshooting Guides: Does the error repeat? Yes Replace the engine control board (71K)

• Code: 103
• Display: Service Call 103: Error
• Description: Error detected at Engine SRAM Read/Write when turned on.
• Troubleshooting Guides: Does the error repeat? Yes Replace the engine control board (71K).

• Code: 104
• Display: Service Call 104: Error
• Description: Error detected at Engine EEPROM Checksum when turned on.
• Troubleshooting Guides: Does the error repeat? Yes Replace the engine control board (71K).

• Code: 105
• Display: Service Call 105: Error
• Description: EEPROM not detected when turned on.
• Troubleshooting Guides: No EEPROM? Does the error repeat?
  Confirm the existence of EEPROM. Without it, mount an EEPROM. Replace the engine control board (71K).

• Code: 106
• Display: Service Call 106: Error
• Description: Error detected at Engine Control Logic.
• Troubleshooting Guides: Does the error repeat? Replace the engine control board (71K).

• Code: 120 … 122
• Display: Service Call 120: Error ~ 122: Error
• Description: Error detected at the Power unit cooling fan in the Controller cavity.
• Troubleshooting Guides: 1) Is the error message displayed? 2) Does the error repeat?
  Turn off/on the printer. Replace the Fan motor.

• Code: 123
• Display: Service Call 123: Error
• Description: Inappropriate ambient RH detected by a sensor.
• Troubleshooting Guides: 1) Is the error message displayed? 2) Does the error repeat?
  Turn off/on the printer. Replace the RH sensor.

• Code: 124
• Display: Service Call 124: Error
• Description: Inappropriate ambient temp. detected by a sensor.
• Troubleshooting Guides: 1) Is the error message displayed? 2) Does the error repeat?
  Turn off/on the printer. Replace the temperature sensor.

• Code: 125
• Display: Service Call 125: Error
• Description: Error detected at the MT home position.
• Troubleshooting Guides: 1) Is the error message displayed? 2) Does the error repeat?
  Turn off/on the printer. Replace the MT.

• Code: 130
• Display: Service Call 130: Error
• Description: Temperature rise at the LED head detected.
• Troubleshooting Guides: 1) Is the error message displayed? 2) Does the error repeat?
  Turn off the printer, leave it for 30 min and then turn it on again. Replace the LED head unit.

• Code: 131 … 134
• Display: Service Call 131: Error ~ 134: Error
• Description: No LED head unit detected when turning on the printer or closing the cover.
• Troubleshooting Guides: 1) Is the error message displayed? 2) Is the LED head mounted properly? 3) Does the error repeat?
  Verify the installation of the LED head. Turn off/on the printer. Replace the LED head Assy.

• Code: 140 … 142
• Display: Service Call 140: Error ~ 142: Error
• Description: Error detected with the D located at appropriate position.
• Troubleshooting Guides: 1) Is the error message displayed? 2) Does the error repeat?
  Turn off/on the printer. Replace the Drum Assy.

• Code: 150 … 153
• Display: Service Call 150: Error ~ 153: Error
• Description: Fuse in the ID unit has not been blown.
• Troubleshooting Guides: Is the ID unit mounted properly? Yes Confirm the cable connection, or replace the Engine board.

• Code: 154
• Display: Service Call 154: Error
• Description: Fuse in the Belt unit has not been blown.
• Troubleshooting Guides: Is the Belt unit mounted properly? Yes Confirm the cable connection, or replace the Engine board.

• Code: 155
• Display: Service Call 155: Error
• Description: Fuse in the Fuser unit has not been blown.
• Troubleshooting Guides: Is the Fuser unit mounted properly? Yes Confirm the cable connection, or replace the Engine board.

• Code: 160 … 163
• Display: Service Call 160: Error ~ 163: Error
• Description: Error detected by Toner sensor.
• Troubleshooting Guides: 1) Is the error message displayed? 2) Does the error repeat?
  Replace Toner sensor or Assy (Y71-PWB). Same as the above.

• Code: 170, 171, 174, 175
• Display: Service Call 170: Error 171: Error 174: Error 175: Error
• Description: Short or open circuit detected at the Fusert hermistor. (H or L temperature error)
• Troubleshooting Guides: 1) Is the error message displayed? 2) Does the error repeat?
  Turn off/on the printer. Replace the Thermistor and turn off the printer. Leave it for 30 min.

• Code: 172, 176
• Display: Service Call 172: Error 176: Error
• Description: High temperature error detected at Thermistor
• Troubleshooting Guides: 1) Is the error message displayed? 2) Does the error repeat?
  Turn off/on the printer. Replace the Thermistor and turn off the printer. Leave it for 30 min.

• Code: 173, 177
• Display: Service Call 173: Error 177: Error
• Description: Low temperature error detected at Thermistor.
• Troubleshooting Guides: 1) Is the error message displayed? 2) Does the error repeat?
  Turn off/on the printer. Replace the Thermistor or heater and turn off the printer.

• Code: 181 … 186
• Display: Service Call 181: Error ~ 186: Error
• Description: Communication failure with an option unit detected by Engine
• Troubleshooting Guides: 1) Is the error message displayed? 2) Does the error repeat?
  Turn off/on the printer. Replace the option unit.

• Code: 310
• Display: Close Cover 310: CCCC CoverOpen
• Description: Printer engine cover is open.
• Troubleshooting Guides: 1) Is the Top cover open? 2) Does the Cover switch operatenormally?
  Close the Top cover. Close the Side cover. Replace the Cover switch.

• Code: 320
• Display: Check Fuser 320: Fuser Error
• Description: No Fuser unit detected when turning on the printer or closing the cover
• Troubleshooting Guides: 1) Is the error message displayed? 2) Is the Fuser unit mounted properly? 3) Does the error repeat?
  Confirm the existence of the unit. Re-install the Fuser unit and turn off/on the printer. Replace the Fuser unit Assy.

• Code: 330
• Display: Check Belt 330: Belt Error
• Description: No Belt unit detected when turning on the printer or closing the cover.
• Troubleshooting Guides: 1) Is the error message displayed? 2) Is the Belt unit mounted properly? 3) Does the error repeat?
  Confirm the existence of the unit. Re-install the Belt unit and turn off/on the printer. Replace the Belt unit Assy.

• Code: 340 … 343
• Display: Check Drum 340~343: Drum Error
• Description: No ID unit detected when turning on the printer or closing the cover.
• Troubleshooting Guides: 1) Is the error message displayed? 2) Is the ID unit mounted properly? 3) Does the error repeat?
  Confirm the existence of the unit. Re-install the ID unit and turn off/on the printer. Replace the ID unit Assy.

• Code: 350 … 353
• Display: Install New Drum 350: Y Drum Life 351: M Drum Life 352: C Drum Life 353: K Drum Life
• Description: End of the ID unit life. more copies printed.
• Troubleshooting Guides: Is it displayed soon after the ID unit replacement?
  Confirm the life of the ID unit. Replace the ID unit.

• Code: 360
• Display: Install Duplex Unit 360: No Duplex unit
• Description: The Duplex unit is removed from the printer.
• Troubleshooting Guides: Recovered if the Duplex unit is inserted again? Normal Replace the Duplex unit or Engine board.

• Code: 370
• Display: Check DUPLEX 370: Paper Jam
• Description: Paper jam detected after paper reverse in the Duplex unit.
• Troubleshooting Guides: 1) Is a paper jammed in the Duplex unit? Remove the jammed paper. Check the Duplex unit, or replace it.

• Code: 371
• Display: Check DUPLEX 371: Paper Jam
• Description: Paper jam detected at the Duplex unit
• Troubleshooting Guides: 1) Is a paper jammed in the Duplex unit? Remove the jammed paper. Check the Duplex unit, or replace it.

• Code: 372
• Display: Check DUPLEX 372: Paper Jam
• Description: Paper jam detectedd uring paper feed from the Duplex unit.
• Troubleshooting Guides: 1) Does misfeed occur in the Duplex unit? Remove the misfed paper and close the cover. Check the Duplex unit, or replace it.

• Code: 380
• Display: Open Side Cover 380: Paper Jam
• Description: Paper jam during paper feed from the Cassette 1, 2, 3, 4 or 5.
• Troubleshooting Guides: 1) Does misfeed occur in the specified cassette? Remove the jammed paper and install the cassette. Check the Cassette 1, 2, 3, 4 or 5, or replace it.

• Code: 381
• Display: Open Stacker Cover 381: Paper Jam
• Description: Paper jam detected btwn the B ID and Fuser.
• Troubleshooting Guides: 1) Is a paper jammed between the Y ID and Fuser? 2) Is the load on the Fuser unit normal? Remove the jammed paper. Replace the Fuser unit.

• Code: 382
• Display: Open Stacker Cover 382: Paper Jam
• Description: Paper jam detected in the Fuser unit or btwn the Fuser and paper ejection.
• Troubleshooting Guides: 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? Remove the jammed paper. Replace the Fuser unit.

• Code: 383
• Display: Open Stacker Cover 383: Paper Jam
• Description: Paper jam detected on paper entering the Duplex unit.
• Troubleshooting Guides: 1) Is a paper jammed at the entrance of the Duplex unit or in the unit? Remove the jammed paper and close. Check the Duplex unit, or replace it.

• Code: 390
• Display: Check MP Tray 390: Paper Jam
• Description: Paper jam during paper feed from the MP Tray.
• Troubleshooting Guides: 1) Does misfeed occur around the MP Tray? Remove the misfed paper and close the cover. Check the MP Tray, or replace it.

• Code: 391 … 395
• Display: Check Tray 391~395: Paper Jam
• Description: Paper jam detected btwn a cassette and the B ID.
• Troubleshooting Guides: 1) Is a paper jammed around the cassette or between the B ID and cassette. 2) Does the Paper entry switch operate normal? Remove the jammed paper. Replace the Paper entry switch.

• Code: 400
• Display: Open Stacker Cover 400: Paper Size Error
• Description: Paper in a size different (45 mm or more) from the specification detected at the Printer engine.
• Troubleshooting Guides: 1) Is the paper in a custom size? 2) Is the paper in the standard size? No action required. Adjust the Paper size guide of the cassette. Replace the Paper size board (PXC PWB).

• Code: 410 … 413
• Display: Toner Low 410: Yellow 411: Magenta 412: Cyan 413: Black
• Description: Toner in one of the four colors is running short.
• Troubleshooting Guides: 1) Is the specified toner cartridge almost empty? 2) Does the Toner sensor of the specified cartridge operate normally? Replace it with a new toner kit. Replace the Toner sensor for the specified color.

• Code: 480
• Display: Remove Printed Papers 480: Stacker Full
• Description: The stacker for ejected papers is full.
• Troubleshooting Guides: 1) Is the stacker full? 2) Does the Stacker full sensor operate normally?
  Remove papers from the stacker. Replace the Stacker full sensor.

• Code: 490
• Display: Load * Papers 490: No paper in the MP Tray ( *= A4, B5 etc.)
• Description: The specified cassette has no paper or is removed. Or, the cassette be ingused for printing has no more paper.
• Troubleshooting Guides: 1) No paper in MT? 2) Does the Paper out sensor operate normally?
  Load papers in MT. Replace the Paper out sensor.

• Code: 491 … 495
• Display: Load *** Papers 491~495: No paper in the Tray * (*** = A4, B5 etc.)
• Description: No paper in the Cassette 1, 2, 3, 4 or 5 detected.
• Troubleshooting Guides: 1) No paper in the specified cassette? 2) Does the Paper out sensor operate normally?
  Load papers in the specified cassette. Replace the Paper out sensor of the specified cassette.

– Get more information about Epson XP 15000 troubleshooting, click here

– Get more error code list with quick guide to fix printer product, click here
– About get help with reseting Epson inkpad or others, click here

Waste Ink Pad Counter Utility Functions:

– Cleaning printhead.
– Ink charge.
– Fix Epson red lights blinking Error

– Fix Epson Service Required Error: A printer’s ink pad at the end of its service life Please contact Epson Support.

– Check the current value of waste ink counters and ink level counters.
– Clear Waste Ink Counters.
– Read and write serial number.
– Read and write USB ID.
– Read and write HEAD ID.
– Make EEPROM dump, backup.
– Paper feed test.
– Nozzle check.
– Color check pattern.
– Initialize (disable) PF deterioration offset.
– Retrieve device information

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