• Code: 103
• Display: Service Call 103: Error
• Description: Error in engine SRAM read/write detected at power ON.
• Remedy: Does error reoccur? Replace engine control board.

• Code: 104
• Display: Service Call 104: Error
• Description: Error in engine EEPROM check total detected at power ON.
• Remedy: Does error reoccur? Replace engine control board.

• Code: 105
• Display: Service Call 105: Error
• Description: EEPROM not detected at power ON.
• Remedy: Does EEPROM exist? Does error reoccur?
  Check for EEPROM and set if not found. Replace engine control board.

• Code: 106
• Display: Service Call 106: Error
• Description: Error in engine control logic detected at power ON.
• Remedy: Does error reoccur? Replace engine control board.

• Code: 107
• Display: Service Call 107: Error
• Description: Engine ROM check sum error.
• Remedy: Does error reoccur? Is error recovered by reloading PU F/W?
  Reload PU I/F. Replace engine control board.

• Code: 110 ... 116
• Display: Service Call 110: Error ~ 116: Error
  110: Envelope Feeder 111: Duplex unit
  112: 2nd Tray 113: 3rd Tray 114: 4th Tray
  115: 5th Tray 116: Finisher
• Description: Option unit for different model detected.
• Remedy: Is a proper option unit for the printer set? Set proper option unit. Check connections and turn power ON. If error is not recovered, replace the unit.

• Code: 120
• Display: Service Call 120: Error
• Description: PU unit fan motor error.
• Remedy: 1) Is fan in PU unit operating? 2) Error reoccurs after replacing fan motor.
  Replace fan motor. Replace engine control board. Replace engine control board.

• Code: 121
• Display: Service Call 121: Error
• Description: High-voltage power supply I/F error.
• Remedy: Is cable between PU board andhighvoltage power LSI connected properly? Connect properly. Replace high-voltage power supply. Check improper connections for high-voltage.