• Code: C580
• Description: Communication error between IPC board and finisher
• Remedy: (1) Check if the specified finisher is attached. (2) Check if the harness connecting the IPC board and the finisher controller PC board is disconnected or open-circuited. (3) Check if the conductor pattern on the IPC board is short- or open-circuited. (4) Check if the conductor pattern on the finisher controller PC board is short- or open-circuited. (5) Replace the IPC board. (6) Replace the finisher controller PC board.

• Code: C730
• Description: EEPROM initialization error: EEPROM is not initialized normally when performing the code 05-356.
• Remedy: (1) Check if the conductor pattern on the RADF board is short- or open-circuited. (2) Replace the RADF board.

• Code: C810
• Description: Fan motor abnormality: The fan motor is not rotating normally.
• Remedy: (1) Check if the load on the motor shaft is normal. (2) Remove any foreign matter. (3) Check if the harness connecting the fan motor and RADF board is open-circuited. (4) Check if the power is supplied to the pin 1 of the CN9 on the RADF board during the operation. (5) Check if the conductor pattern on the RADF board is open- or short-circuited. (6) Replace the fan motor. (7) Replace the RADF board.

• Code: C820
• Description: Read sensor adjustment error: The read sensor cannot be adjusted normally when performing the code 05-356
• Remedy: (1) Check if there is any foreign matter between the read sensor and the reflecting mirror. Check if the reflecting mirror is dirty. (2) Check if the harness connecting the read sensor and the RADF board is open-circuited. (3) Check if the conductor pattern on the RADF is short- or open-circuited. (4) Replace the read sensor. (5) Replace the RADF board.

• Code: C830
• Description: Original length sensor adjustment error: The original length sensor cannot be adjusted normally when performing the code 05-356.
• Remedy: (1) Check if there are any foreign objects between the original length sensor and the reflecting mirror. Check if the reflecting mirror is dirty. (2) Check if the harness connecting the original length sensor and the RADF board is open-circuited. (3) Check if the conductor pattern on the RADF board is short- or open-circuited. (4) Replace the original length sensor. (5) Replace the RADF board.

• Code: C900
• Description: Connection error between SYS board and LGC board
• Remedy: (1) Check if the connector CN117 on the SYS board is completely inserted or not disconnected. (2) Check if the connector CN338 on the LGC board is completely inserted or not disconnected. (3) Check if the harness connecting the SYS board (CN117) and the LGC board (CN338) is opencircuited. (4) Check if the conductor pattern on each board is short- or open-circuited. (5) Replace the SYS board. (6) Replace the LGC board.

• Code: C940
• Description: Engine-CPU abnormality
• Remedy: Does service call still occur even after turning OFF the main switch then back ON? NO Leave it for a while and see how. YES 1. Check if the conductor pattern between the Engine-CPU and FROM is short- or open-circuited. 2. Replace the LGC board if it frequently occurs.

• Code: C950
• Description: LGC board memory abnormality
• Remedy: (1) Check if the connectors CN360 and CN 331 on the SYS board are completely inserted or not disconnected. (2) Check if the connector J434 on the DRV board is completely inserted or not disconnected. (3) Check if the conductor pattern on each board is short- or open-circuited. (4) Replace the NVRAM. (5) Replace the LGC board. (6) Replace the DRV board. (7) Replace the SYS board. (8) Ask a specialist for a repair (Abnormal ID).