Brother DCP-L5500D Service Manual page 83

 Error code 6200
Detected that the drum unit was not set by detecting the GRID terminal current.
<User Check>
• Set the drum unit correctly.
Step
Dirt on the GRID terminals of the
1 drum unit and those of the
machine
Dirt on the high-voltage power
2
supply PCB terminal
high-voltage power supply PCB
3
failure
4 Main PCB failure
 Electrodes location of the toner cartridge and drum unit
 Electrodes location of the machine
Cause
Clean the CHG and GRID terminals of the drum
unit and those of the machine.
(Refer to
Clean the high-voltage power supply PCB
terminal.
Replace the high-voltage power supply PCB
ASSY.
Replace the main PCB ASSY.
Fig. 2-8
Fig. 2-9
2-48
Remedy
Fig. 2-8 and Fig. 2-9.)
Side surface of
drum unit
Bottom surface of
drum unit
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