Description: Backup memory (EEPROM) data problem (Engine PWB) Reading data from EEPROM is abnormal. Read and write data does not match 5 times continuously.
Causes: Data damage of EEPROM.
Remedy: Contact the Service Administrative Division.
Code: C0170
Description: Copy counts problem A checksum error is detected in the main and engine backup memories for the copy counters.
Causes: Data damage of EEPROM. Defective PWB.
Remedy: Data damage of EEPROM. Contact the Service Administrative Division. Defective PWB. Replace the main PWB or engine PWB and check for correct operation.
Code: C0180
Description: Machine number mismatch error Machine number of main PWB and engine PWB does not match.
Causes: Data damage of EEPROM.
Remedy: Data damage of EEPROM. Contact the Service Administrative Division.
Code: C0620
Description: FAX image DIMM problem DIMM is not installed correctly. DIMM cannot be accessed.
Causes: DIMM installed incorrectly. Defective main PWB.
Remedy: DIMM installed incorrectly. Check if the DIMM is inserted into the socket on the main PWB correctly. Defective main PWB. Replace the main PWB and check for correct operation.
Code: C0630
Description: DMA problem DMA transmission of image data does not complete within the specified period of time.
Causes: Poor contact in the connector terminals. Defective main PWB.
Remedy: Poor contact in the connector terminals. Check the connection the signal cable for CIS and the main PWB, and the continuity across the connector terminals. Repair or replace if necessary. Defective main PWB. Replace the main PWB and check for correct operation.
Code: C0640
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.