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1-4-2
Self-diagnosis
(1) Self-diagnostic function
This unit is equipped with a self-diagnostic function. When a problem is detected, copying is disabled and the problem dis-
played as a code consisting of C followed by a number, indicating the nature of the problem. A message is also displayed
requesting the user to call for service.
After removing the problem, the self-diagnostic function can be reset by turning cover switch off and back on.
(2) Self diagnostic codes
Code
C1030
PF lift motor 1 error
After cassette 3 is inserted, PF lift switch
1 does not turn on within 12 s. This error
is detected two times successively.
During driving the motor, the lift overcur-
rent protective monitor signal is detected
for 500 ms or more two times succes-
sively. However, the first 1 s after PF lift
motor 1 is turned on is excluded from
detection.
C1040
PF lift motor 2 error
After cassette 4 is inserted, PF lift switch
2 does not turn on within 12 s. This error
is detected two times successively.
During driving the motor, the lift overcur-
rent protective monitor signal is detected
for 500 ms or more two times succes-
sively. However, the first 1 s after PF lift
motor 2 is turned on is excluded from
detection.
C1800
Paper feeder communication error
A communication error from paper
feeder is detected 10 times in succes-
sion.
Y112020-4
Contents
Causes
Check procedures/corrective measures
Poor contact in the
Check the connection of connector YC27 on
connector termi-
the engine PWB and the connector on the
nals.
PF main PWB, and the continuity across the
connector terminals. Repair or replace if
necessary.
Broken gears or
Replace PF lift motor 1.
couplings of PF lift
motor 1.
Defective PF lift
Check for continuity across the coil. If none,
motor 1.
replace PF lift motor 1.
Defective PF lift
Check if YC1-7 on the PF main PWB goes
switch 1.
low when PF lift switch 1 is turned off. If not,
replace PF lift switch 1.
Poor contact in the
Check the connection of connector YC27 on
connector termi-
the engine PWB and the connector on the
nals.
PF main PWB, and the continuity across the
connector terminals. Repair or replace if
necessary.
Broken gears or
Replace PF lift motor 2.
couplings of PF lift
motor 2.
Defective PF lift
Check for continuity across the coil. If none,
motor 2.
replace PF lift motor 2.
Defective PF lift
Check if YC1-9 on the PF main PWB goes
switch 2.
low when PF lift switch 2 is turned off. If not,
replace PF lift switch 2.
Poor contact in the
Check the connection of connector YC27 on
connector termi-
the engine PWB and the connector on the
nals.
PF main PWB, and the continuity across the
connector terminals. Repair or replace if
necessary.
Defective PWB.
Replace the PF main PWB or engine PWB
and check for correct operation.
Service Manual
Remarks
3LM-1
1-4-5
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