Brother HL-4050CDN - Page 53

Confidential
1-36
Error code CE
No Waste Toner
Install the Waste Toner Box. Refer to the User’s Guide for how to
install.
Waste toner box is not installed into the machine.
User Check
- Check if the waste toner box is installed into the machine correctly.
Step Cause
Remedy
1 Harness connection failure of
belt cleaner release sensor
PCB ASSY
Check the harness connection of the belt cleaner
release sensor PCB ASSY and reconnect it.
2 Belt cleaner release sensor
PCB failure
Check the sensor performance following the
procedure described in “Maintenance mode 32”. If
any problem occurs, replace the belt cleaner
release sensor PCB ASSY.
3 Belt cleaner release solenoid
failure
Replace the belt cleaner release ASSY.
4 Engine PCB failure Replace the engine PCB ASSY.
Error code CF
Waste Toner Full
Replace the Waste Toner Box. Refer to the User’s Guide for how to do
it.
Waste toner box full
User Check
- Replace the waste toner box with a new one.
Step Cause
Remedy
1 Waste toner sensor failure Check the sensor performance following the
procedure described in “Maintenance mode 32”. If
any problem occurs, replace the waste toner
near/full sensor ASSY.
2 Harness connection failure of
waste toner near/full sensor
ASSY
Check the harness connection of the waste toner
near/full sensor ASSY and reconnect it.
3 Engine PCB failure Replace the engine PCB ASSY.