Troubleshooting For Toner Cartridge And Drum Unit Problems; New Toner Not Detected; Toner Cartridge Not Detected; Toner Replacement Message Displayed On Lcd Is Not Cleared - Brother HLL3290CDW Service Manual

4.7 Troubleshooting for Toner Cartridge and Drum Unit
Problems
4.7.1

New toner not detected

<User Check>
• Check if the supplied toner cartridge is installed.
• Be sure to set a new toner cartridge.
• Check that the genuine toner cartridge is set.
Step
1
2
4.7.2

Toner cartridge not detected

<User Check>
• Re-assemble the toner cartridge.
• Replace the toner cartridge with a new one.
Step
1
2
4.7.3

Toner replacement message displayed on LCD is not cleared

<User Check>
• Be sure to set a new toner cartridge.
• Check that the genuine toner cartridge is set.
Step
1
2
Cause
High-voltage power supply
PCB failure
Main PCB failure
Cause
High-voltage power supply
PCB failure
Main PCB failure
Cause
High-voltage power supply
PCB failure
Main PCB failure
Replace the high-voltage power supply PCB.
Replace the main PCB.
Replace the high-voltage power supply PCB.
Replace the main PCB.
Replace the high-voltage power supply PCB.
Replace the main PCB.
2-140
Remedy
Remedy
Remedy
Confidential