Brother DCP-L5500D Service Manual page 101

 Error code 8B01
Detected that the TT was not turned ON.
<User Check>
• Turn ON the TT.
• Reconnect the AC cord of the TT.
Step
Malfunction of the TT control
1
PCB
Connection failure of the TT low-
2 voltage power supply PCB
harness
3 TT AC cord breakage
TT low-voltage power supply
4
PCB failure
5 TT control PCB failure
6 Main PCB failure
 Error code 8E02
Detected that the size of the paper set to paper tray was over 10 mm shorter than letter size
when receiving fax or printing a list/report.
<User Check>
• Set A4 or Letter-size paper.
Step
Registration rear actuator
1 caught in some sections of the
machine
Registration rear sensor failure
2
3 Main PCB failure
Cause
Install the latest main firmware.
Reconnect the TT low-voltage power supply
PCB harness.
Replace the AC cord.
Replace the TT low-voltage power supply PCB
ASSY.
Replace the TT control PCB ASSY.
Replace the main PCB ASSY.
Cause
Reattach the registration rear actuator.
Replace the registration front/rear sensor PCB
ASSY.
Replace the main PCB ASSY.
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Remedy
Remedy
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