Causes: The developer bias off is detected during the main charge bias off
Remedy: 1 Resetting the main power The firmware in the engine PWB does not operate normally Turn off the power switch and unplug the power plug. After 5s passes, reconnect the power plug and turn on the power switch. 2 Replacing the engine PWB The engine PWB is faulty. Replace the engine PWB.
Code: C0530
Description: Backup task error
Causes: No operation 30s or more when monitoring the backup task operation
Remedy: 1 Resetting the main power The firmware in the engine PWB does not operate normally Turn off the power switch and unplug the power plug. After 5s passes, reconnect the power plug and turn on the power switch. 2 Replacing the engine PWB The engine PWB is faulty. Replace the engine PWB.
Code: C0800
Description: Image processing error
Causes: The print sequence jam (J010x) is detected 2 times continuously.
Remedy: 1 Checking the image data The image data is faulty. When this issue occurs only when handling the certain image data, check if the image data is faulty. 2 Checking the situation The printing operation of the certain file is faulty. Acquire the job's log if the phenomenon can be reproduced by specifying the job when the error was detected. 3 Checking the main PWB The connector or the FFC is not connected properly. Or, the wire, FFC, the PWB is faulty. Clean the terminal of the connectors on the main PWB, reconnect the connector of the wire, and reconnect the FFC terminal. If the wire or the FFC is faulty, repair or replace them. If not resolved, replace the main PWB.
Code: C0830
Description: FAX PWB flash program area checksum error
Causes: The program stored in the flash memory on the FAX PWB is broken so it cannot perform.
Remedy: 1 Resetting the main power The FAX PWB is not connected properly. Turn off the power switch and pull out the power plug. After passing 5s, reattach the FAX PWB and reinsert the power plug. Then, turn on the power switch. 2 Firmware upgrade The firmware is faulty. Reinstall the FAX firmware. 3 Initializing the fax The data in the FAX PWB is faulty. Execute U600 to initialize the FAX. 4 Replacing the FAX PWB The FAX PWB is faulty. Replace the FAX PWB. Step
Code: C0840
Description: RTC error
Causes: • Not communicated with RTC correctly. • RTC data is inconsistent with empty battery.
Remedy: 1 Setting time and date (RTC) Time and date (RTC) are erased Set Date and Time (RTC) from System Menu 2 Replacing the main PWB The main PWB is faulty, or the backup battery runs out. Replacing the main PWB
Code: C0870
Description: PC FAX Image data transmission error
Causes: Data was not properly transmitted even if the specified times of retry were made when the large volume data is transmitted between the FAX PWB and the main PWB.
Remedy: 1 Resetting the main power The FAX PWB does not operate properly. Turn off the power switch and pull out the power plug. After passing 5s, reattach the FAX PWB and reinsert the power plug. Then, turn on the power switch. 2 Initializing the fax The data in the FAX PWB is faulty. Execute U600 to initialize the FAX. 3 Firmware upgrade The FAX firmware is faulty. Upgrade the fax firmware to the latest version. 4 Replacing the FAX PWB The FAX PWB is faulty. Replace the FAX PWB. 5 Replacing the main PWB The main PWB is faulty. Replace the main PWB.