Brother DCP-7055 Service Manual page 73

■ Error code 51
These errors do 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.
Replace PF KitMP
Error, which cannot be specified, occurs.
Error code 52
Replace PF Kit
Error, which cannot be specified, occurs.
Error code 53
Replace PF Kit2
Error, which cannot be specified, occurs.
Error code 54
Replace Fuser
Error, which cannot be specified, occurs.
Error code 55
Replace Laser
Error, which cannot be specified, occurs.
<User Check>
• Turn OFF the power switch, and turn it ON again after a while.
Step
1 Main PCB failure
■ Error code 56
Cover is Open.
Close the Fuser Cover which can be found behind the Back Cover of the
machine.
The fuser cover is open.
<User Check>
• Close the fuser cover properly.
Step
Paper eject actuator catching on
1
some position
Paper eject sensor PCB failure
2
3 Main PCB failure
Cause
Cause
2-36
Remedy
Replace the main PCB ASSY.
Remedy
Correct the position of the paper eject
actuator.
Check the sensor performance following
the procedure described in
32". If any problem occurs, replace the
paper eject sensor PCB ASSY.
Replace the main PCB ASSY.
"Function code
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