Confidential
9-26
M-12 Maximum speed is slow.
Possible cause Step Check Result Remedy
Two or more
sheets of the
paper in the
tray are pulled
to feed.
1 Does paper double feeding
occur?
Yes Replace the separation pad.
Foreign body
attached to the
tail edge
actuator
2 Is a foreign body caught on
the tail edge actuator?
Yes Remove a foreign body.
Tail edge
actuator
failure
3 Is the tail edge actuator
deformed?
Yes Replace the tail edge actuator.
Tail edge
sensor
malfunction
4 Is the tail edge sensor
turned ON?
Yes Replace the tail edge sensor.
M-13 Error indication when turning the power ON
Possible cause Step Check Result Remedy
Disconnection
of the main
motor harness
1 Is the harness of the main
motor connected?
No Reconnect the harness securely.
Disconnection
of the scanner
motor harness
2 Is the harness of the
scanner motor connected?
No Reconnect the harness securely.
Fixing unit
failure
3 Does the printer resume
after opening the cover,
turning the power ON and
leaving the printer for ten
minutes?
No Replace the thermistor.
M-14 The printer stops while idling.
Possible cause Step Check Result Remedy
Front cover
failure
1 Is the cover opened by
vibration during idling?
Yes Replace the front cover.
New toner
detection
switch failure
2 Does the new toner
detection switch work
correctly?
No Replace the new toner detection
switch.
Process unit
terminal
failure
3 Are the terminals of the
process unit dirty?
Yes Clean the terminals.
Laser unit
failure
4 Does the laser unit work
correctly?
No Replace the laser unit.