• Code: 072
• Display: Power off/on 072:Error xx
• Description: Engine I/F Error I/F error between PU-CU.
• Remedy: Is CU assembly set properly? Is error recovered by replacing ARC/SPA board?
  Set properly. Replace ARC/SPA board. Replace PU board (PRN)

• Code: 073
• Display: Power off/on 073:Error xxxxxxxx
• Description: Video Error Fault detected when image data is extended.
• Remedy: [C5200] Is CU assembly set properly? Fault again?
  Set properly. Replace to highperformance PC or drop resolution of data and print again. Replace ARC board
  [C5400] Is CU assembly set properly? Set properly. Replace SPA board.

• Code: 074
• Display: Power off/on 074:Error xxxxxxxx
  075:Error xxxxxxxx
• Description: Video Error Fault detected when image data is extended.
• Remedy: Is CU assembly set properly? Set properly. Replace ARC/SPA board.

• Code: 104
• Display: Service call 104:Error
• Description: Engine EEPROM setting check is OK when power ON. Then detect read/ write error.
• Remedy: Does error reoccur? Power OFF/ON Replace PU board (PRN)

• Code: 105
• Display: Service call 105:Error
• Description: An error detected by checking, at printer's power-om, EEPROM installation.
• Remedy: Does error reoccur? Power OFF/ON Replace PU board (PRN)

• Code: 106
• Display: Service call 106:Error
• Description: Abnormal engine control logic.
• Remedy: Does error reoccur? Power OFF/ON Replace PU board (PRN)

• Code: 121
• Display: Service call 121:Error
• Description: High-voltage power supply I/F error.
• Remedy: Is cable between PU board and high-voltage power unit connected properly? Is there no improperly connections?
  Connect properly. Check improper connections for high-voltage. Replace high-voltage power supply.

• Code: 122
• Display: Service call 122:Error
• Description: Low-voltage power supply fan error. Low-voltage power supply temperature error.
• Remedy: Is fan in low-voltage power supply unit operating? Is fan connector connected properly?
  Check connections for connector of fan. Replace low-voltage power supply. Replace fan motor. Replace low-voltage power supply.