Brother HL-5440D Service Manual page 66

Error code 1E00
Drum End Soon
The number of rotations of the drum unit is reaching the life limit.
Step
Replace the drum unit with a
new one and reset the drum
1 counter. If the error display is
not cleared, the main PCB is
faulty.
Error codes 1F00 to 3500
These errors do not usually occur during normal use. The possible causes are noise around
the installation site, fluctuation of the power supply voltage, and failures in the software.
---
An unidentified error occurred.
Step
1 Main PCB failure
Error code 3600
Print Unable 36
An error occurred in the high-voltage power supply PCB.
Step
High-voltage power supply PCB
1
failure
2 Main PCB failure
Error codes 3700 to 3A00
These errors do not usually occur during normal use. The possible causes are noise around
the installation site, fluctuation of the power supply voltage, and failures in the software.
---
An unidentified error occurred.
Step
1 Main PCB failure
Cause
Replace the main PCB ASSY.
Cause
Replace the main PCB ASSY.
Cause
Replace the high-voltage power supply PCB
ASSY.
Replace the main PCB ASSY.
Cause
Replace the main PCB ASSY.
2-30
Remedy
Remedy
Remedy
Remedy
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