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Confidential
■ Error code E1
Program error.
■ Error code E2
When the center thermistor is lower than the idle temperature, it is detected that the side
thermistor temperature is higher than 280 °C.
■ Error code E3
Drum position sensor error.
Print Unable E1
Turn the power off and then back on again.
Step Cause Remedy
1 Firmware update failure Upload the latest firmware.
2 Main PCB failure Replace the main PCB ASSY.
Print Unable E2
Turn the power off and then back on again.
Step Cause Remedy
1 Heat roller dirty Clean the heat roller.
2 Harness connection failure
between paper eject sensor PCB
ASSY and fuser unit
Check the harness connection between
the paper eject sensor PCB ASSY and
fuser unit, and reconnect it.
3 Side thermistor or center
thermistor failure
Replace the fuser unit.
4 Paper eject sensor PCB failure Replace the paper eject sensor PCB
ASSY.
5 Main PCB failure Replace the main PCB ASSY.
Print Unable E3
Turn the power off and then back on again.
Step Cause Remedy
1 Harness connection failure of
drum position sensor PCB ASSY
Check the harness connection of the
drum position sensor PCB ASSY and
reconnect it.
2 Phase displacement of drum
gear
Align the drum phase.
(Refer to “6. IF YOU REPLACE THE
DRUM DRIVE MOTOR“ in Chapter 4.)
3 Drum position sensor failure Replace the drum position sensor PCB
ASSY.
4 Engine PCB failure Replace the engine PCB ASSY.
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