Brother DCP-L5500D Service Manual page 80

 Error code 4500
The number of printable pages of the fuser unit has reached the upper limit.
Step
End of life of the fuser unit
1
Replace the fuser unit with a
new one and reset the fuser unit
2
counter. If the error display is not
cleared, the main PCB is faulty.
 Error code 4600
The number of printable pages of the laser unit has reached the upper limit.
Step
End of life of the laser unit
1
Replace the laser unit with a
new one and reset the laser unit
2
counter. If the error display is not
cleared, the main PCB is faulty.
 Error code 4B01
Dot counter or develop roller counter of the toner is reaching the upper limit.
Error code 4C01
Dot counter or develop roller counter of the toner has reached the upper limit.
Step
Replace the toner cartridge with
a new one. If the error display is
1
not cleared, the main PCB is
faulty.
Cause
Replace the fuser unit. Refer to
counters for consumable parts (function code:
88)" in Chapter 5
after the replacement.
Replace the main PCB ASSY.
Cause
Replace the laser unit. Refer to
counters for consumable parts (function code:
88)" in Chapter 5
after the replacement.
Replace the main PCB ASSY.
Cause
Replace the main PCB ASSY.
2-45
Remedy
"1.3.31 Reset
to reset the fuser unit counter
Remedy
"1.3.31 Reset
to reset the laser unit counter
Remedy
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