Brother HL-L2325DW - Troubleshooting for Toner Cartridge and Drum Unit Problems; New Toner Not Detected; Toner Cartridge Not Detected

2-81
Confidential
4.7 Troubleshooting for Toner Cartridge and Drum Unit
Problems
4.7.1 New toner not detected
<User Check>
• Be sure to set a new toner cartridge(or box).
• Check that the genuine toner cartridge(or box) is set.
4.7.2 Toner cartridge not detected
<User Check>
• Re-assemble the toner cartridge(or box).
• Replace the toner cartridge(or box) with a new one.
Step Cause Remedy
1 New toner actuator coming off Reattach the new toner actuator.
2
Connection failure of the new
toner sensor PCB harness
(Models without toner box)
Reconnect the new toner sensor PCB
harness.
3
Connection failure of the new
toner box sensor PCB
harness
(Models with toner box)
Reconnect the new toner box sensor PCB
harness.
4
Connection failure of the
toner box relay PCB harness
(Models with toner box)
Reconnect the toner box relay PCB harness.
5
New toner sensor PCB failure
(Models without toner box)
Replace the new toner sensor PCB ASSY.
6
New toner box sensor PCB
failure
(Models with toner box)
Replace the new toner box sensor PCB
ASSY.
7
Relay PCB failure
(Models with toner box)
Replace the relay PCB ASSY.
8
High-voltage power supply
PCB failure
Replace the high-voltage power supply PCB
ASSY.
9 Main PCB failure Replace the main PCB ASSY.
Step Cause Remedy
1
New toner sensor PCB failure
(Models without toner box)
Replace the new toner sensor PCB ASSY.
2
New toner box sensor PCB
failure
(Models with toner box)
Replace the new toner box sensor PCB
ASSY.
3 Main PCB failure Replace the main PCB ASSY.