Causes: Low-voltage power supply failure was detected.
Remedy: 1. Check the connection of the Power Supply PCB or the connector. 2. Check the connection of the AC Relay PCB or the connector. 3. Replace the Power Supply PCB. 4. Replace the AC Relay PCB.
Code: E840-0000
Description: Fixing disengagement error
Causes: Fixing pressure release mechanism error
Remedy: 1. Check the drawer connector between the Fixing Assembly and the Power Supply PCB. 2. Replace the Fixing Assembly. 3. Replace the Power Supply PCB.
Code: F9-nn
Description: System error
Causes: Communication error between the Main Controller and the Control Panel
Remedy: - Check for any poor contact/open circuit of the connector between the Main Controller and the Control Panel. If there is no problem with the connector but the error persists, obtain the following information and contact the department in charge of quality management. - Output STATUS PRINT/P-PRINT. - Collect Sublog - Collect information on conditions to reproduce the error