Utax CA-3100, Service Manual

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7-33
Troubleshooting
＞
Self-diagnostic function
[CONFIDENTIAL]
0800 Image processing error
JAM010x is detected twice.
Defective connector
cable or poor contact in
the connector. Reinsert the connector. Also check for continuity within
the connector cable. If none, replace the cable.
Fuser thermistor 1/2 and fuser thermistor connect
PWB(YC1/2)
Fuser thermistor connect PWB(YC3) and engine PWB
(YC21)
Defective fuser
thermistor. Replace the fuser thermistor connect PWB.
Replace the fuser unit.
Defective engine PWB. Replace the engine PWB and check for correct
operation.
Defective main PWB. Replace the main PWB and check for correct
operations.
0840 Faults of RTC
Unable to communicate with the RTC
device normally.
The RTC data is mismatched due to
dead battery or short-circuit with the
metal part.
Other RTC device
failure due to dead
battery or short-circuit
with the metal part. Restart the main unit and set the correct time from the
operation panel.
Repair it if the battery comes off from the main PWB.
Defective main PWB. Replace the main PWB and check for correct
operation.
1010 Lift motor error
(60/55/50 ppm model only)
After cassette 1 is inserted, lift sensor
does not turn on within 10 s. This
error is detected five times
successively.
Defective bottom plate
elevation mechanism in
the cassette. Check to see if the bottom plate can move smoothly
and repair it if any problem is found.
Defective connector
cable or poor contact in
the connector. Reinsert the connector. Also check for continuity within
the connector cable. If none, replace the cable.
Lift motor and engine PWB (YC13)
Defective drive
transmission system of
the lift motor. Check if the gears rotate smoothly. If not, grease the
bushes and gears. Check for broken gears and replace
if any.
Defective lift motor. Replace the lift motor.
Defective engine PWB. Replace the engine PWB and check for correct
operation.
1020 PF lift motor 1 error
(paper feeder)
After cassette 2 is inserted, PF lift
sensor 1 does not turn on. This error
is detected four times successively.
Defective bottom plate
elevation mechanism in
the cassette. Check to see if the bottom plate can move smoothly
and repair it if any problem is found.
Defective connector
cable or poor contact in
the connector. Reinsert the connector. Also check for continuity within
the connector cable. If none, replace the cable.
PF lift motor 1 and PF main PWB (YC7)
Defective drive
transmission system of
the PF lift motor. Check if the gears rotate smoothly. If not, grease the
bushes and gears. Check for broken gears and replace
if any.
Defective PF lift motor. Replace the PF lift motor 1.
Defective PF main
PWB. Replace the PF main PWB.
Code Contents Causes Check procedures/
corrective measures