2-80
Confidential
■ Error code EB
Read error in EEPROM of the laser unit.
■ Error code EC
Fuser fan error.
■ Error code ED
Communication with the wireless LAN PCB cannot be established upon startup of the power
supply. (Wireless LAN model only)
Print Unable EB
Turn the power off and then back on again.
Step Cause Remedy
1 Harness connection failure
between laser unit and main
PCB ASSY
Check the harness connection between
the laser unit and main PCB ASSY, and
reconnect it.
2 Laser unit failure Replace the laser unit.
3 Engine PCB failure Replace the engine PCB ASSY.
4 Main PCB failure Replace the main PCB ASSY.
Print Unable EC
Turn the power off and then back on again.
Step Cause Remedy
1 Harness connection failure of
fuser fan
Check the harness connection of the
fuser fan and reconnect it.
2 Fuser fan failure Replace the fuser fan.
3 High-voltage power supply PCB
failure
Replace the high-voltage power supply
PCB ASSY.
4 Main PCB failure Replace the main PCB ASSY.
Print Unable ED
Turn the power off and then back on again.
Step Cause Remedy
1 Harness connection failure of
wireless LAN PCB
Check the harness connection of the
wireless LAN PCB and reconnect it.
2 Wireless LAN PCB failure Replace the wireless LAN PCB.
3 Main PCB failure Replace the main PCB ASSY.
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