Description: Hard disk drive problem The hard disk cannot be accessed.
Causes: Poor contact in the connector terminals. Defective hard disk. Defective main PWB.
Remedy: Poor contact in the connector terminals. Check the connection of connector YC49 on the main PWB and the connector on the hard disk. Repair or replace if necessary. Defective hard disk. Run U024 (HDD formatting) without turning the power off to initialize the hard disk. Replace the hard disk drive and check for correct operation if the problem is still detected after initialization. Defective main PWB. Replace the main PWB and check for correct operation.
Code: C0700
Description: CF error for backup Optional fax backup kit (CF) is not suitable as backup.
Causes: CF installed incorrectly. Defective CF.
Remedy: CF installed incorrectly. Install CF correctly. Defective CF. Run the maintenance item U933 to initialize the CF.
Code: C0800
Description: Image processing problem JAM05 is detected twice.
Causes: Defective main PWB.
Remedy: Defective main PWB. Replace the main PWB and check for correct operation.
Code: C0830
Description: Flash ROM program area checksum error (optional fax) A checksum error occurred with the program in the Flash ROM on the fax control PWB.
Causes: Defective fax control PWB.
Remedy: Defective fax control PWB. Upgrade the fax control PWB software. If the problem still remains, replace the fax control PWB and check for correct operation.
Code: C0870
Description: Fax control PWB to main PWB high capacity data transfer problem (optional fax) High-capacity data transfer between the fax control PWB and the main PWB was not normally performed even if the data transfer was retried the specified times.
Causes: Poor contact in the connector terminals. Defective fax control PWB or main PWB.
Remedy: Poor contact in the connector terminals. Check the connection of connector YC1 on the fax control PWB and YC4 on the interface PWB, connection of connector YC30 on the main PWB and YC6 on the interface PWB and the continuity across the connector terminals. Repair or replace if necessary. Defective fax control PWB or main PWB. Replace the fax control PWB or main PWB and check for correct operation.
Code: C0880
Description: Fax control PWB program archive problem (optional fax) When power is turned on, the compressed program in the flash ROM on the fax control PWB was not successfully decompressed.
Causes: Defective fax control PWB.
Remedy: Defective fax control PWB. Replace the fax control PWB and check for correct operation.