• Code: C0040
• Description: Network scanner PCB* problem • Correct communication data is not obtained from network scanner PCB.
• Causes: Defective network scanner PCB.
• Remedy: Replace the network scanner PCB and check for correct operation.

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

• Code: C0110
• Description: Backup memory data problem • 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: Turn safety switch 1 off and back on and run maintenance item U020 to set the contents of the backup memory data again. If the C0110 is displayed after re-setting the backup memory contents, replace the backup RAM or main PCB.

• Code: C0210
• Description: Operation unit PCB communication problem • There is no reply after 20 retries at communication.
• Causes: Poor contact in the connector terminals. Defective main PCB or operation unit left PCB.
• Remedy: Check the connection of connectors CN10 on the main PCB and CN2 on the operation unit PCB, and the continuity across the connector terminals. Repair or replace if necessary. Replace the main PCB or operation unit left PCB and check for correct operation.

• Code: C0240
• Description: Printer PCB* communication problem • There is no reply after 20 retries at communication.
• Causes: Poor contact in the connector terminals. Defective main PCB or printer PCB.
• Remedy: Check the connection of connector CN3 on the main PCB and the connector on the printer PCB. Repair or replace if necessary. Replace the main PCB or printer PCB and check for correct operation.

• Code: C0250
• Description: Network scanner PCB* communication problem • There is no reply, in during regular communication from network scanner PCB to main PCB.
• Causes: Poor contact in the connector terminals. Defective main PCB or network scanner PCB.
• Remedy: Check the connection of connector CN4 on the main PCB and the connector on the network scanner PCB. Repair or replace if necessary. Replace the main PCB or network scanner PCB and check for correct operation.

• Code: C0420
• Description: Side deck communication problem • An error code from the side deck is detected eight times in succession. No communication: there is no reply after 3 retries. Abnormal communication: a communication error (parity or checksum error) is detected five times in succession.
• Causes: Poor contact in the connector terminals. Defective main PCB. Defective side deck main PCB.
• Remedy: Check the connection of connectors CN13 on the main PCB and CN3 on the side deck main PCB, and the continuity across the connector terminals. Repair or replace if necessary. Replace the main PCB and check for correct operation. Replace the side deck main PCB and check for correct operation.

• Code: C0440
• Description: Finisher communication problem • An error code from the side deck is detected eight times in succession. No communication: there is no reply after 3 retries. Abnormal communication: a communication error (parity or checksum error) is detected five times in succes-sion.
• Causes: Poor contact in the connector terminals. Defective main PCB. Defective finisher main PCB.
• Remedy: Check the connection of connectors CN24 on the main PCB and CN2 on the finisher main PCB, and the continuity across the connector terminals. Repair or replace if necessary. Replace the main PCB and check for correct operation. Replace the finisher main PCB and check for correct operation.