• Code: C0700
• Description: Backup memory data problem B • The backup data on the scanner main PCB has been initialized.
• Causes: Broken backup memory.
• Remedy: Run maintenance item U004 and enter the correct machine model number.

• Code: C0710
• Description: Backup memory data problem C • One slave code among three machine number backup data is judged to be broken.
• Causes: Broken backup memory.
• Remedy: Run maintenance item U004 and enter the correct machine model number.

• Code: C0810
• Description: SCC microcomputer status problem • Abnormal SCC microcomputer status has been detected.
• Causes: Defective scanner main PCB.
• Remedy: Replace the scanner main PCB and check for correct operation.

• Code: C0820
• Description: Fax board CG ROM checksum error • A checksum error occurred with the CG ROM data of the fax board.
• Causes: Defective fax board.
• Remedy: Replace the fax board and check for correct operation.

• Code: C0830
• Description: Fax board flash program area checksum error • A checksum error occurred with the program of the fax board.
• Causes: Defective fax board.
• Remedy: Replace the fax board and check for correct operation.

• Code: C0840
• Description: RTC PCB problem • The time is judged to go back based on the comparison of the RTC time and the current time or five years or more have passed.
• Causes: Defective RTC PCB.
• Remedy: Replace the RTC PCB.

• Code: C0850
• Description: Backup memory problem • Writing or erasing has not completed even after a certain time.
• Causes: Defective RTC PCB.
• Remedy: Replace the RTC PCB.

• Code: C0860
• Description: Flash ROM checksum error • Abnormal memory for backup on the engine controller PCB has been detected.
• Causes: Defective flash ROM. Defective engine controller PCB.
• Remedy: Replace the flash ROM and check for correct operation. Replace the engine controller PCB and check for correct operation.