Code :

Code: 7900
Display: Jam Manual Feed Pull out the jammed paper from Manual Feed and press Start
Description: After the manual feed sensor detects pass of paper fed from the manual feed slot, the registration rear sensor does not detect paper pass after a set period of time. Or after the manual feed sensor detects paper pass, the registration rear sensor detects paper pass within a set period of time.
Causes: 1 Foreign object inside the manual feed path 2 Registration rear actuator that has come off or that has been caught 3 Registration clutch harness connection failure 4 Registration front/rear/manual feed sensor PCB harness connection failure 5 Registration rear sensor failure 6 Registration clutch failure 7 Main PCB failure

Code: 8501
Display: No Tray The paper tray cannot be detected, re-install Tray1
Description: The paper feed sensor detected that the paper tray was not set (before print registration in engine) in 2-sided printing.
Causes: 1 Foreign object around the area from which paper tray is inserted 2 Paper feed actuator that has come off or that has been caught 3 Paper feed sensor PCB harness connection failure 4 Paper feed sensor PCB failure 5 Main PCB failure

Code: 8505
Display: No Tray The paper tray cannot be detected, re-install Tray1
Description: The paper feed sensor detected that the paper tray was not set (after print registration in engine) in 2-sided printing
Causes: 1 Foreign object around the area from which paper tray is inserted 2 Paper feed actuator that has come off or that has been caught 3 Paper feed sensor PCB harness connection failure 4 Paper feed sensor PCB failure 5 Main PCB failure

Code: 8903
Display: 2-sided Disabled Close the Back Cover of the Machine
Description: The back cover sensor detected the open state when 2-sided printing is started (before the registration of printing in the engine).
Causes: 1 Back cover sensor harness connection failure 2 Back cover sensor installation failure 3 Breakage of boss that presses the back cover sensor 4 Back cover sensor failure 5 Main PCB failure

Code: 8904
Display: 2-sided Disabled Close the Back Cover of the Machine
Description: The back cover sensor detected the open state during 2-sided printing (after the registration of printing in the engine).
Causes: 1 Back cover sensor harness connection failure 2 Back cover sensor installation failure 3 Breakage of boss that presses the back cover sensor 4 Back cover sensor failure 5 Main PCB failure

Code: 8A01
Display: Size Error 2-sided Specify the correct paper
Description: The registration rear sensor detected that the fed paper was larger or smaller than the specified size in 2-sided printing.
Causes: 1 Registration rear actuator catching on some position 2 Registration rear sensor failure 3 Main PCB failure

Code: 8C00
Display: Manual Feed Load paper
Description: No paper is in the manual feed slot when printing from the manual feed slot.
Causes: 1 Registration front/rear/manual feed sensor PCB harness connection failure 2 Manual feed actuator catching on some position 3 Manual feed sensor failure 4 Main PCB failure

Code: 8D01
Display: Short paper Open the Back Cover and then press Start
Description: The registration rear sensor detected that the paper loaded in the paper tray was smaller than the specified size.
Causes: 1 Registration rear actuator catching on some position 2 Registration rear sensor failure 3 Main PCB failure