Brother HL-L3210CW - Drum Error; Drum Replacement Message Displayed on LCD Is Not Cleared

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Confidential
4.7.4 Drum error
<User Check>
• Clean the corona wire of the drum unit.
• Replace the drum unit with a new one.
4.7.5 Drum replacement message displayed on LCD is not cleared
<User Check>
• Reset the drum counter according to the manual.
Step Cause Remedy
1
Dirt on the electrodes of the
drum unit and those of the
machine
Clean the electrodes of the drum unit and
those of the machine. (Refer to Fig. 2-6 (P2-
63) and Fig. 2-7 (P2-63).)
2
Dirt on the electrodes of the
high-voltage power supply
PCB and those of the
machine
Clean the electrodes of the high-voltage
power supply PCB and those of the machine.
3
High-voltage power supply
PCB failure
Replace the high-voltage power supply PCB.
4 Main PCB failure Replace the main PCB.
Step Cause Remedy
1 Main PCB failure Replace the main PCB.