Code: E001

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• Description:Main Board EEPROM error
  The EEPROM (U800) on the Main Board Assy. is inaccessible.
• Causes:Mounting failure of the EEPROM (U800). The Main Board Assy. is faulty. EEPROM (U800) is faulty.

Code: E002

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• Description:Main motor error
  The main motor ready signal could not be detected within 2 seconds after the motor becomes ON.
• Causes:Poor connection between the main motor (CN1) and the Main Board Assy. (YC805). There is some problem in the main motor drive transmission path. The main motor is faulty. The Main Board Assy. is faulty.

Code: E004

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• Description:Polygon motor error
  The polygon motor ready signal could not be detected within 6 seconds after the motor becomes ON.
• Causes:Poor connection between the polygon motor (laser scanner unit) and the Main Board Assy. (YC819). The laser scanner unit is faulty. The Main Board Assy. is faulty.

Code: E005

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• Description:Horizontal synchronization signal error
  The controller could not detect the horizontal synchronization signal within the specified time period.
• Causes:The laser scanner unit is faulty.

Code: E008

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• Description:Fuser heater cable disconnection
  The fuser heater lamp was turned ON, but the fuser temperature did not rise.
• Causes:Poor connection of the fuser thermistor. Poor connection of the fuser heater lamp connector. Mounting failure of the fuser thermistor. Fuser thermal cut-out has been activated. Mounting failure of the fuser heater lamp. The fuser heater lamp has breaks.

Code: E009

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• Description:Abnormally high fuser heater temperature
  The fuser thermistor detected abnormal high temperature.
• Causes:The fuser thermistor shorted out. The Main Board Assy. is faulty.

Code: E010

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• Description:Fuser thermistor short-circuit
  The A/D value input from the fuser thermistor is “0” (zero).
• Causes:Poor connection of the fuser thermistor. The fuser thermistor has breaks. Mounting failure of the fuser thermistor. Fuser thermal cut-out has been activated. Mounting failure of the fuser heater lamp. The fuser heater lamp has breaks.

Code: E011

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• Description:Zero cross signal error
  The Main Board Assy. did not receive the zero cross signal during a specified time period.
• Causes:Poor connection between the HVPS (YC202) and the Main Board Assy. (YC811). Poor connection between the LVPS (YC103) and the HVPS (YC201). The LVPS is faulty. The Main Board Assy. is faulty.