Description: FAX control PWB flash program area checksum error A checksum error occurred with the program of the FAX control PWB.
Causes: Defective FAX software. Defective FAX control PWB.
Remedy: Defective FAX software. Install the fax software. Defective FAX control PWB. Replace the FAX control PWB.
Code: 0840
Description: Faults of RTC 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: The battery is disconnected from the main PWB. Defective main PWB.
Remedy: The battery is disconnected from the main PWB. Check visually and remedy if necessary Defective main PWB. Replace the main PWB and check for correct operation.
Code: 0870
Description: FAX control PWB to main PWB high capacity data transfer error High-capacity data transfer between the FAX control PWB and the main PWB of the machine was not normally performed even if the data transfer was retried the specified times.
Causes: Improper installation FAX control PWB. Defective FAX control PWB or main PWB.
Remedy: Improper installation FAX control PWB. Reinstall the FAX control PWB. Defective FAX control PWB or main PWB. Replace the FAX control PWB or main PWB and check for correct operation.
Code: 0920
Description: Fax file system error The backup data is not retained for file system abnormality of flash memory of the FAX control PWB.
Causes: Defective FAX control PWB.
Remedy: Defective FAX control PWB. Replace the FAX control PWB and check for correct operation.
Remedy: Defective drum PWB (EEPROM). Replace the drum unit. Defective engine PWB (EEPROM). Replace the engine PWB and check for correct operation. Defective engine PWB. Replace the engine PWB and check for correct operation. Defective main PWB. Replace the main PWB and check for correct operation.
Code: 1010
Description: Lift motor error When the lift motor is driven, the motor over-current detection signal is detected continuously for 50 times (5 s) at 100 ms intervals. After the lift motor is driven, the ON status of lift sensor cannot be detected for 8 s. The cassette installed confirmation message is displayed on the operation panel, and even if the cassette is opened and closed, the cassette installed confirmation message is displayed 5 times successively.
Causes: Defective bottom plate elevation mechanism in the cassette. Defective connector cable or poor contact in the connector. Defective drive transmission system of the lift motor. Defective lift motor. Defective engine PWB.
Remedy: Defective bottom plate elevation mechanism in the cassette. Check to see if the bottom plate can move smoothly and repair it if any problem is found. 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. Lift motor and engine PWB (YC27) Defective drive transmission system of the lift motor. Check if the gears rotate smoothly. If not, grease the bushes and gears. Check for broken gears and replace if any. Defective lift motor. Replace the lift motor Defective engine PWB. Replace the engine PWB and check for correct operation.