Brother 09055CDN Service Manual page 126

■ Error code C4
Tray 2 Error
Take out Tray 2 and push it back in firmly.
Paper tray 2 pressing plate up/down error.
<User Check>
- Check if the paper tray 2 is installed into the machine.
Step
1 Harness connection failure of
T2 plate motor ASSY
2 Harness connection failure of
T2 Relay PCB ASSY
3 T2 plate-up detection sensor
failure
4 T2 Relay PCB ASSY failure
5 Engine PCB failure
6 T2 plate motor ASSY failure
■ Error code C5
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Energization failure of erase lamp.
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
2-87
Remedy
Check the harness connection of the
T2 plate motor ASSY and reconnect it.
Check the harness connection of the
T2 Relay PCB ASSY and reconnect it.
Check the sensor performance following
the procedure described in
32". If any problem occurs, replace the T2
paper feed frame unit.
Replace the T2 Relay PCB ASSY.
Replace the engine PCB ASSY.
Replace the paper tray 2.
Remedy
Replace the main PCB ASSY.
"Function code
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