Error code 6D
Print Unable 6D
Turn the power off and then back on again.
Fuser unit error (The center thermistor detects lower temperature than the specified value.)
Error code 6F
Print Unable 6F
Turn the power off and then back on again.
Fuser unit error (The center or side thermistors detect extremely high temperature.)
Error code 76
Print Unable 76
Turn the power off and then back on again.
Fuser unit error (The center thermistor detects rapid temperature rising.)
Error code 78
Print Unable 78
Turn the power off and then back on again.
Fuser unit error (The center thermistor detects rapid temperature falling.)
Step
1
Harness connection failure
between fuser unit connector and
eject front sensor PCB ASSY
2
Harness connection failure
between eject front sensor PCB
ASSY and main PCB ASSY
3
Fuser unit failure
4
Low-voltage power supply PCB
failure
5
Eject front sensor PCB failure
6
Main PCB failure
Cause
3-26
Remedy
Check the harness connection between
the fuser unit connector and eject front
sensor PCB ASSY, and reconnect it.
Check the harness connection between
the eject front sensor PCB ASSY and
main PCB ASSY, and reconnect it.
Replace the fuser unit.
Replace the low-voltage power supply
PCB ASSY.
Replace the eject front sensor PCB ASSY.
Replace the main PCB ASSY.
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