Epson AcuLaser M8000N Printer Repair

Code: Cxxxx

  • Description:Controller error
  • Remedy:If an error related with the controller, first perform the following initial check. If not recovered after the initial check, refer to the list of error-causing parts and replace the corresponding parts in order to troubleshoot the problem.

Code: Dxxxx

  • Description:Controller error
  • Remedy:If an error related with the controller, first perform the following initial check. If not recovered after the initial check, refer to the list of error-causing parts and replace the corresponding parts in order to troubleshoot the problem.

Code: E100

  • Description:Exposure failure
    SOS signal cannot be detected at correct intervals. Output of laser beam does not reach the specified value.
  • Remedy:1. Remove Left Cover and check the connection and operation of SWITCH I/L ASSY (P/J144, P/J145). 2. The connectors on ROS ASSY are correctly connected? 3. Check the connections between ROS ASSY <=> MCU Board Assy. Disconnection/slant connection of a connector Disconnection/damage of a harness a connector. 4. Because INTERLOCK S/W 5V is not working, 5VDC is not supplied. Check the operation and connection of INTERLOCK S/W 5V (P/J142). 5. Replace ROS ASSY. 6. Replace MCU Board Assy.

Code: E300

  • Description:Fusing failure
    Temperature of Heat Roller does not reach the specified value. Warming-up of Fuser Unit is not completed within the specified period. Thermistor detects an abnormally high temperature.
  • Remedy:1. Connectors on LVPS are connected correctly? 2. Check the connection between Fuser Unit <=> LVPS <=> MCU Board Assy. Disconnection/slant connection of a connector Disconnection/damage of a harness. 3. Replace Fuser Unit. 4. Replace MCU Board Assy.

 Code: E500

  • Description:MAIN MOTOR failure
    MOTOR ASSY is not turning, or not turning normally.
  • Remedy:1. Connectors on LVPS and MCU Board Assy are correctly connected? 2. Check the connections between MAIN MOTOR <=> LVPS <=> MCU Board Assy. Disconnection/slant connection of a connector Disconnection/damage of a harness. 3. MAIN MOTOR is not turning normally due to an abnormal load on it. Check GEAR ASSY HOUSING’s Drive Transmission Path. 4. Replace MAIN MOTOR. 5. Replace LVPS. 6. Replace MCU Board Assy.

Code: E550

  • Description:Fan motor failure
    FAN MAIN does not rotate or not rotate correctly.
  • Remedy:1. Are FAN MAIN, FAN SUB2, and FAN LVPS rotating at power-on? Check the vent for exhausting internal air correctly. If the three fans are rotating and still this error occurs, replace MCU Board Assy. 2. Check if something is sticking on a fan and applying an extra load to the rotation. 3. Check the connection between FAN MAIN/FAN SUB2 <=> MCU Board Assy. Disconnection/slant connection of a connector Disconnection/damage of a harness. 4. Replace FAN MAIN. Replace FAN SUB2. 6. Replace FAN LVPS.

Code: E900

  • Description:Memory failure
    An error occurs in reading/writing the nonvolatile memory on MCU Board Assy.
  • Remedy:1. Any other electric appliances; generators, radiotransmitter, etc., within three meters from the printer? In such a case, noises from them may cause an error in reading/writing; therefore, change the location of them or turn them off. 2. MCU Board Assy itself has abnormality. Replace MCU Board Assy.

Code: E998

  • Description:Engine communication error
    Communication between Main Board Assy and MCU Board Assy has abnormality.
  • Remedy:1. Any other electric appliances; generators, radiotransmitter, etc., within three meters from the printer? In such a case, noises from them may cause an error in reading/writing; therefore, change the location of them or turn them off. 2. Connection between Main Board Assy and MCU Board Assy correct? 3. Replace Main Board Assy. 4. Replace MCU Board Assy.

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