2-33
Confidential
 Error code 5500
Printable pages set for the laser unit have reached the limit. (Printing does not stop.)
 Error code 5600
The eject sensor detected that the fuser cover was open.
Replace Laser
Step Cause Remedy
1 End of life of the laser unit Replace the laser unit.
2 Main PCB failure Replace the main PCB ASSY.
Cover is Open
<User Check>
• Close the fuser cover.
Step Cause 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 "1.3.8 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.