3NB/3ND/3N0/3NK
1-4-21
8340
CF staple motor error
JAM7600 is detected twice.
Defective connec-
tor cable or poor
contact in the con-
nector.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
CF staple unit and CF main PWB (YC13)
Defective CF sta-
ple sensor.
Replace the CF staple unit.
Defective CF sta-
ple motor.
Defective CF main
PWB.
Replace the CF main PWB and check for
correct operation.
8350
CF side registration motor 1
error
When initial operation, CF
side registration sensor 1
does not turn on within 1 s.
Defective connec-
tor cable or poor
contact in the con-
nector.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
CF side registration motor 1 and CF main
PWB (YC10)
CF side registration sensor 1 and CF main
PWB (YC20)
Defective CF side
registration sensor
1.
Replace CF side registration sensor 1.
Defective CF side
registration motor
1.
Replace CF side registration motor 1.
Defective CF main
PWB.
Replace the CF main PWB and check for
correct operation.
8360
CF main motor error
During driving the motor, lock
signal is detected for 1 s con-
tinuously.
Defective connec-
tor cable or poor
contact in the con-
nector.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
CF main motor and CF main PWB (YC16)
Defective CF main
motor.
Replace the CF main motor.
Defective CF main
PWB.
Replace the CF main PWB and check for
correct operation.
Code
Contents
Causes
Check procedures/
corrective measures
Service Manual Y113480-7
Summary of Contents for DF-790
Page 1: ...SERVICE MANUAL Options DF 790 BF 730 MT 730 AK 730 PH 7C Code Y113480 7...
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