Brother MFC-7450

1-10
Confidential
■ Error code 63
Toner cartridge is at the end of its life.
(The toner sensor detects the nearly empty, or the drum counter reached the upper limit.)
Toner Life End
Replace Toner Cartridge.
User Check
• Gently shake the toner cartridge from side to side and install it again.
• Replace the toner cartridge.
Step Cause Remedy
1
Harness connection failure of new
toner sensor harness ASSY.
Check the sensor performance following
the procedure described in "Maintenance
mode 32". If any problem occurs, check the
harness connection of the new toner
sensor harness ASSY, then reconnect it.
2
Harness connection failure of
toner sensor PCB unit ASSY.
Check the sensor performance following
the procedure described in "Maintenance
mode 32". If any problem occurs, check the
harness connection of the toner sensor
PCB unit ASSY, then reconnect it.
3
New toner sensor harness ASSY
failure (Toner empty)
Replace the new toner sensor harness
ASSY.
4
Toner sensor PCB unit ASSY
failure.
Replace the toner sensor PCB unit ASSY.
5 Main PCB failure Replace the main PCB ASSY.