Brother MFC-7450

1-8
Confidential
■ Error code 56
Fuser cover opened
■ Error code 58
Error code 59
If the same error is detected again 15 minutes later, the message below is indicated.
Fuser unit failure *It occurs with either of 68, 69, 6A, 6B, 6C, 6D, 6E, 6F, 76 and 78.
Cover is Open
Close the Fuser Cover.
User Check
• Check if the Fuser cover is closed correctly.
Step Cause Remedy
1
Harness connection failure of back
cover switch ASSY
Check the harness connection of the back
cover switch ASSY and reconnect it.
2 Eject actuator failure Re-assemble the eject actuator
3 Eject sensor PCB ASSY failure Replace the eject sensor PCB ASSY.
4 Main PCB failure Replace the main PCB ASSY.
Fuser Error
Turn the power off, then on again. Leave the machine for 15 min.
Self-Diagnostic
Will Automatically Restart within 15 minutes.
Print Unable 6A
See Troubleshooting and routine maintenance chapter in User’s Guide.
Step Cause Remedy
1
Harness connection failure
between fuser unit and eject
sensor PCB
Check the harness connection between the
fuser unit and eject sensor PCB, and
reconnect it.
2 Fuser unit failure Replace the fuser unit.
3 LVPS PCB failure Replace the LVPS PCB unit.
4 Eject sensor PCB ASSY failure Replace the eject sensor PCB ASSY.
5 Main PCB failure Replace the main PCB ASSY.