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Confidential
Error code 4B01
Dot counter of the toner cartridge or develop roller counter reaches the upper limit soon.
<User Check>
• Prepare a new toner cartridge.
Error code 4C01
Dot count or develop roller counter of the toner cartridge has reached the upper limit in the
toner stop mode.
Error code 4D01
Dot count or develop roller counter of the toner cartridge is reaching the upper limit in the
continuous printing mode.
Error code 4E01
Toner cartridge has reached the upper limit in the continuous printing mode.
<User Check>
• Replace the toner cartridge whose counter reached the upper limit.
Error code 4F01
The new toner sensor of the toner cartridge could not detect a new cartridge properly.
<User Check>
• Replace the toner cartridge with a new toner cartridge again.
• If the machine is on the uneven surface, place it on a level surface.
Step
Cause
Remedy
1
Main PCB failure
Replace the main PCB ASSY.
Step
Cause
Remedy
1
Replace the toner cartridge with
a new one and reset the toner
counter. If the error display is not
cleared, the main PCB is faulty.
Replace the main PCB ASSY.
Step
Cause
Remedy
1
Connection failure of the new
toner sensor PCB harness
Reconnect the new toner sensor PCB
harness.
2
New toner actuator coming off or
caught in some sections of the
machine
Reattach the new toner actuator.
3
New toner sensor failure
Replace the new toner sensor PCB ASSY.
4
Main PCB failure
Replace the main PCB ASSY.