Brother 09055CDN Service Manual page 91

■ Error code 58
Fuser Error
Turn the power off, then on again. Leave the machine for 15 min.
Error code 59
Self-Diagnostic
Will Automatically Restart within 15 minutes.
Fuser unit error.
Step
1 Harness connection failure
between fuser unit connector and
paper eject sensor PCB ASSY
2 Harness connection failure
between fuser unit connector and
low-voltage power supply PCB
ASSY
3 Fuser unit failure
4 Paper eject sensor PCB failure
5 Low-voltage power supply PCB
failure
6 Engine PCB failure
7 Main PCB failure
■ Error code 5A
Print Unable 5A
Turn the power off and then back on again.
High-voltage power supply PCB transfer error.
This error does not usually occur in the normal use. The conceivable causes are noise around
the installation site, fluctuation of the power supply voltage, and failures in the software.
<User Check>
- Turn OFF the power switch, and turn it ON again after a while.
Step
1 Main PCB failure
Cause
Cause
2-52
Remedy
Check the harness connection between
the fuser unit connector and paper eject
sensor PCB ASSY, and reconnect it.
Check the harness connection between
the fuser unit connector and low-voltage
power supply PCB ASSY, and reconnect
it.
Replace the fuser unit.
Replace the paper eject sensor PCB
ASSY.
Replace the low-voltage power supply
PCB ASSY.
Replace the engine PCB ASSY.
Replace the main PCB ASSY.
Remedy
Replace the main PCB ASSY.
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