Brother MFC-9010CN - Page 120

3-28
Confidential
■ Error code 5F
The waste toner box near full. (The waste toner sensor detects the always ON state.)
<User Check>
- Prepare a new waste toner box.
WT Box End Soon
Note:
The same message appears in the case of the error code F2.
Step Cause Remedy
1 Harness connection failure of
waste toner sensor
Check the harness connection of the
waste toner sensor and reconnect it.
2 Waste toner sensor failure Check the sensor performance following
the procedure described in “Function code
32”. If any problem occurs, replace the
waste toner sensor.
3 HVPS control PCB failure Replace the HVPS control PCB ASSY.
4 Main PCB failure Replace the main PCB ASSY.