Utax CA-3100, Service Manual

Page: 213 / 287

7-35
Troubleshooting
＞
Self-diagnostic function
[CONFIDENTIAL]
1150 BPF lift motor downward error (Bulk
paper feeder)
BPF lift minimum sensor does not
turn on.
The lock signal of the motor is
detected continuously three times.
When detecting an overcurrent
detection signal.
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.
BPF lift motor and BPF main PWB (YC4)
Defective drive
transmission system of
the motor. Check if the gears rotate smoothly. If not, grease the
bushes and gears. Check for broken gears and replace
if any.
Defective BPF lift motor. Replace the BPF lift motor.
Defective BPF main
PWB.
Replace the BPF main PWB.
1800 Paper feeder 1 communication error
A communication error is detected 10
times in succession.
Improper installation
paper feeder. Follow installation instruction carefully again.
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 main PWB (YC3) and engine PWB (YC22)
Defective engine PWB. Replace the engine PWB and check for correct
operation (see page 4-28).
Defective PF main
PWB. Replace the PF main PWB.
1810 Paper feeder 2 communication error
A communication error is detected 10
times in succession.
Improper installation
paper feeder. Follow installation instruction carefully again.
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 main PWB (YC3) and engine PWB (YC22)
Defective PF main
PWB. Replace the PF main PWB.
1820 Paper feeder 3 communication error
A communication error is detected 10
times in succession.
Improper installation
paper feeder. Follow installation instruction carefully again.
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 main PWB (YC3) and engine PWB (YC22)
Defective PF main
PWB. Replace the PF main PWB.
1830 Paper feeder 4 communication error
A communication error is detected 10
times in succession.
Improper installation
paper feeder. Follow installation instruction carefully again.
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 main PWB (YC3) and engine PWB (YC22)
Defective PF main
PWB. Replace the PF main PWB.
1900 Paper feeder 1/BPF paper feeder
EEPROM error
When writing the data, the write data
and the read data is not in
agreement.
Defective PF main
PWB. Replace the PF main PWB or the BPF main PWB.
Device damage of
EEPROM.
1910 Paper feeder 2 EEPROM error
When writing the data, the write data
and the read data is not in
agreement.
Defective PF main
PWB. Replace the PF main PWB.
Device damage of
EEPROM.
Code Contents Causes Check procedures/
corrective measures