Troubleshooting Of The Toner Cartridge And Drum Unit; New Toner Not Detected; Cartridge Error (Toner Cartridge Not Detected); Toner Low - Brother MFC-9130CW Service Manual

4.7

Troubleshooting of the Toner Cartridge and Drum Unit

4.7.1

New toner not detected

<User Check>
- Be sure to install a new toner cartridge.
Step
1
2
3
4.7.2

Cartridge error (Toner cartridge not detected)

Step
1
2
3
4.7.3

Toner low

(Even though a new toner cartridge is set, Toner low warning remains)

Step
1
2
3
Cause
Harness connection failure of
the high-voltage power supply
PCB
High-voltage power supply
PCB failure
Main PCB failure
Cause
During new toner cartridge
detection, power is turned
OFF or the joint cover ASSY
is opened
High-voltage power supply
PCB failure
Main PCB failure
Cause
Harness connection failure of
the high-voltage power supply
PCB
High-voltage power supply
PCB failure
Main PCB failure
Check the high-voltage power supply PCB
harness connection and reconnect it.
Replace the high-voltage power supply PCB
ASSY.
Replace the main PCB ASSY.
Perform toner manual reset. (Refer to
Toner Manual Reset Function" in Chapter
Replace the high-voltage power supply PCB
ASSY.
Replace the main PCB ASSY.
Check the high-voltage power supply PCB
harness connection and reconnect it.
Replace the high-voltage power supply PCB
ASSY.
Replace the main PCB ASSY.
2-107
Remedy
Remedy
"2.1
Remedy
Confidential
5.)