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Confidential
■ Error code 5F
The waste toner box near full. (The sensor detected that the waste toner became near full.)
<User Check>
- Prepare a new waste toner box.
WT Box End Soon
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 High-voltage power supply PCB
failure
Replace the high-voltage power supply
PCB ASSY.
4 Main PCB failure Replace the main PCB ASSY.
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