• Code: C0030
• Description: Fax control PWB system problem
  • Processing with the optional fax software was disabled due to a hardware or software problem.
• Causes: Defective fax control PWB.
• Remedy: Replace the fax control PWB and check for correct operation.

• Code: C0070
• Description: Fax control PWB incompatibility detection problem
  • Optional fax software is not compatible with main software.
• Causes: Fax software or main software is something of the other machine.
• Remedy: Check the version of the Fax software and the main software, upgrade the version to the compatible software.

• Code: C0150
• Description: Backup memory read/write problem (engine PWB)
  • Read and write data does not match.
• Causes: Defective backup RAM or engine PWB.
• Remedy: 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: Turn interlock switch off and back on and run maintenance item U020 to set the contents of the backup memory data again. If the C0160 is displayed after re-setting the backup memory contents, replace the backup RAM or 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: 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: Defective main PWB or engine PWB.
• Remedy: Replace the main PWB or engine PWB and check for correct operation.

• Code: C0210
• Description: Communication problem between the main PWB and engine PWB
  • When the power is turned on, the machine does not detect the low level of SBSY and the high level of SDIR for three seconds.
• Causes: Poor contact in the connector terminals. Defective main PWB or engine PWB.
• Remedy: Check the connection of connectors YC7 on the main PWB and YC3 on the engine PWB, and the continuity across the connector terminals. Repair or replace if necessary. Replace the main PWB or engine PWB and check for correct operation.

• Code: C0220
• Description: Communication problem between the main PWB and operation PWB
  • There is no reply after 20 retries at communication.
• Causes: Poor contact in the connector terminals. Defective main PWB or operation PWB.
• Remedy: Check the connection of connectors YC13 on the main PWB and YC3 on the operation PWB, and the continuity across the connector terminals. Repair or replace if necessary. Replace the main PWB or operation PWB and check for correct operation.