Remedy: 1 Eject actuator attachment failure Reattach the eject actuator. 2 Eject actuator spring attachment failure Reattach the eject actuator spring. 3 Eject actuator and/or fuser cover failure Replace the fuser cover. 4 Eject sensor PCB failure Refer to "1.3.10 Check sensor operation (function code: 32)" in Chapter 5 to check the sensor operation. If the sensor operation is faulty, replace the eject sensor PCB ASSY. 5 Main PCB failure Replace the main PCB ASSY.
Code: 5700
Description: The registration front sensor does not detect paper pass within the specified time after the first side was printed in duplex printing mode.
Causes: 1 Foreign object in the duplex paper feed system. 2 Outer chute coming off. 3 Connection failure of the duplex solenoid harness. 4 Duplex gears attachment failure. 5 Duplex tray failure. 6 Duplex solenoid failure. 7 Damaged duplex gears. 8 Main PCB failure.
Remedy: 1 Foreign object in the duplex paper feed system Remove the foreign object. 2 Outer chute coming off Reattach the outer chute. 3 Connection failure of the duplex solenoid harness Check the connection of the duplex solenoid harness, and reconnect it if necessary. 4 Duplex gears attachment failure Reattach the duplex gears. 5 Duplex tray failure Replace the duplex tray. 6 Duplex solenoid failure Replace the duplex solenoid. 7 Damaged duplex gears Replace the main frame L ASSY. 8 Main PCB failure Replace the main PCB ASSY.
Code: 5800
Description: Any of error codes 6A00 to 6F00, 7600, 7800, DD00,DE00, or E200 (fuser unit error) occurred when the power switch was turned ON or sleep mode was released.
Causes: 1 Connection failure of the fuser unit harnesses. 2 Connection failure of the eject sensor PCB harness. 3 Fuser unit failure. 4 Eject sensor PCB failure. 5 Low-voltage power supply PCB failure. 6 Main PCB failure.
Remedy: 1 Connection failure of the fuser unit harnesses Check the connection of fuser unit harnesses, and reconnect them if necessary. 2 Connection failure of the eject sensor PCB harness Check the connection of the eject sensor PCB harness, and reconnect it if necessary. 3 Fuser unit failure Replace the fuser unit. 4 Eject sensor PCB failure Refer to "1.3.10 Check sensor operation (function code: 32)" in Chapter 5 to check the sensor operation. If the sensor operation is faulty, replace the eject sensor PCB ASSY. 5 Low-voltage power supply PCB failure Replace the low-voltage power supply PCB ASSY. 6 Main PCB failure Replace the main PCB ASSY.
Code: 5900
Description: Rechecking the error after the power switch was turned OFF and then ON again because an error was detected by the center thermistor of the fuser unit. (This message is displayed for approximately 15 minutes when the machine is restarted after error code 5800 has occurred.)
Causes: 1 Connection failure of the fuser unit harnesses. 2 Connection failure of the eject sensor PCB harness. 3 Fuser unit failure. 4 Eject sensor PCB failure. 5 Low-voltage power supply PCB failure. 6 Main PCB failure.
Remedy: 1 Connection failure of the fuser unit harnesses Check the connection of fuser unit harnesses, and reconnect them if necessary. 2 Connection failure of the eject sensor PCB harness Check the connection of the eject sensor PCB harness, and reconnect it if necessary. 3 Fuser unit failure Replace the fuser unit. 4 Eject sensor PCB failure Refer to "1.3.10 Check sensor operation (function code: 32)" in Chapter 5 to check the sensor operation. If the sensor operation is faulty, replace the eject sensor PCB ASSY. 5 Low-voltage power supply PCB failure Replace the low-voltage power supply PCB ASSY. 6 Main PCB failure Replace the main PCB ASSY.
Code: 6300
Description: The toner sensor detected no toner remaining or the number of rotations of the developer roller has reached the upper limit.
Causes: 1 Toner sensor PCB failure. 2 Relay front PCB failure. 3 Main PCB failure.
Remedy: 1 Toner sensor PCB failure Refer to "1.3.10 Check sensor operation (function code: 32)" in Chapter 5 to check the sensor operation. If the sensor operation is faulty, replace the toner sensor PCB ASSY. 2 Relay front PCB failure Replace the relay front PCB ASSY. 3 Main PCB failure Replace the main PCB ASSY.