Description: Billing counting error A checksum error is detected in the main and engine backup memories for the billing counters.
Causes: Data in the EEPROM. Defective PWB.
Remedy: Data in the EEPROM . Contact the Service Administrative Division. Defective PWB. Replace the main PWB or the engine PWB and check for correct operation.
Code: 0180
Description: Machine number mismatch Machine number of main and engine does not match.
Causes: Data in the EEPROM.
Remedy: Contact the Service Administrative Division.
Code: 0320
Description: I/O CPU communication error A communication error is detected 10 times in succession
Causes: Defective PWB.
Remedy: Replace the main PWB or the engine PWB and check for correct operation.
Code: 0620
Description: FAX image DIMM error DIMM is not installed correctly. DIMM cannot be accessed.
Remedy: DIMM installed incorrectly. Check if the DIMM is inserted into the socket on the main PWB correctly. Defective PWB. Replace the main PWB and check for correct operation.
Code: 0630
Description: DMA error DMA transmission of image data does not complete within the specified period of time.
Causes: Poor contact in the connector terminals. Defective 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 PWB. Replace the main PWB and check for correct operation.
Code: 0640
Description: Hard disk error The hard disk cannot be accessed.
Causes: Defective connector cable or poor contact in the connector. Defective hard disk.
Remedy: Defective connector cable or poor contact in the connector. Reinsert the connector. Also check for continuity within the connector cable. If none, replace the cable. 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 PWB. Replace the main PWB and check for correct operation.