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M-12
Maximum speed is slow.
Possible cause
Step
Two or more
1
sheets of the
paper in the
tray are pulled
to feed.
Foreign body
2
attached to the
tail edge
actuator
Tail edge
3
actuator
failure
Tail edge
4
sensor
malfunction
M-13
Error indication when turning the power ON
Possible cause
Step
Disconnection
1
of the main
motor harness
Disconnection
2
of the scanner
motor harness
Fixing unit
3
failure
M-14
The printer stops while idling.
Possible cause
Step
Front cover
1
failure
New toner
2
detection
switch failure
Process unit
3
terminal
failure
Laser unit
4
failure
Check
Does paper double feeding
occur?
Is a foreign body caught on
the tail edge actuator?
Is the tail edge actuator
deformed?
Is the tail edge sensor
turned ON?
Check
Is the harness of the main
motor connected?
Is the harness of the
scanner motor connected?
Does the printer resume
after opening the cover,
turning the power ON and
leaving the printer for ten
minutes?
Check
Is the cover opened by
vibration during idling?
Does the new toner
detection switch work
correctly?
Are the terminals of the
process unit dirty?
Does the laser unit work
correctly?
9 -2 6
Result
Remedy
Yes
Replace the separation pad.
Yes
Remove a foreign body.
Yes
Replace the tail edge actuator.
Yes
Replace the tail edge sensor.
Result
Remedy
No
Reconnect the harness securely.
No
Reconnect the harness securely.
No
Replace the thermistor.
Result
Remedy
Yes
Replace the front cover.
No
Replace the new toner detection
switch.
Yes
Clean the terminals.
No
Replace the laser unit.
Confidential
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Table of Contents
Troubleshooting
