• Code: C0100
• Description: Backup memory read/write problem (main PWB) Read and write data does not match.
• Causes: Defective main PWB.
• Remedy: Defective main PWB. Replace the main PWB and check for correct operation.

• Code: C0110
• Description: Backup memory data problem (main PWB) Data in the specified area of the backup memory does not match the specified values.
• Causes: Problem with the backup memory data. Defective backup RAM.
• Remedy: Problem with the backup memory data. Turn safety switch off and back on and run maintenance item U020 to set the contents of the backup memory data again. Defective backup RAM. If the C0110 is displayed after re-setting the backup memory contents, replace the main PWB.

• Code: C0150
• Description: Backup memory read/write problem (engine PWB) Read and write data does not match.
• Causes: Defective engine PWB.
• Remedy: Defective engine PWB. Replace the engine PWB and check for correct operation.

• Code: C0160
• Description: Backup memory data problem (engine PWB) Data in the specified area of the backup memory does not match the specified values.
• Causes: Problem with the backup memory data. Defective backup RAM.
• Remedy: Problem with the backup memory data. Turn safety switch off and back on and run maintenance item U020 to set the contents of the backup memory data again. Defective backup RAM. If the C0160 is displayed after re-setting the backup memory contents, replace the engine PWB.

• Code: C0170
• Description: Accounting count problem When the power is turned on, the total count and the scan count are abnormal both on the main PWB and the engine PWB.
• Causes: Defective main PWB or engine PWB.
• Remedy: Defective main PWB or engine PWB. Replace the main PWB or engine PWB and check for correct operation.

• Code: C0180
• Description: Machine number mismatch When the power is turned on, the machine number does not match between the main PWB and the engine PWB.
• Causes: Data damage of EEPROM.
• Remedy: Data damage of EEPROM. Contact the Service Administrative Division.

• Code: C0210
• Description: Communication problem between the main PWB and engine board PWB When the power is turned on, the machine does not detect the low level of SBSY and the high level of SDIR for 10 seconds.
• Causes: Poor contact in the connector terminals. Defective main PWB or engine PWB.
• Remedy: Poor contact in the connector terminals. Check the connection of connectors YC6 on the main PWB and YC1 on the engine PWB, and the continuity across the connector terminals. Repair or replace if necessary. Defective main PWB or engine PWB. Replace the main PWB or engine PWB and check for correct operation.

• Code: C0240
• Description: Optional printer board PWB communication problem The printer board PWB does not respond 120 s after the power is turned on.
• Causes: Poor contact in the connector terminals. Defective main PWB or printer board PWB.
• Remedy: Poor contact in the connector terminals. Check the connection of connector. Repair or replace if necessary. Defective main PWB or printer board PWB. Replace the main PWB or printer board PWB and check for correct operation.