3NB/3ND/3N0/3NK
1-4-22
8410
Punch slide motor error 1
The punch slide sensor won’t
turn On when home position
has been moved by 30 mm.
Defective connec-
tor cable or poor
contact in the con-
nector (4000-sheet
finisher).
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
Punch slide motor and punch PWB (YC3)
Punch slide sensor and punch PWB (YC6)
Punch PWB (YC1) and DF main PWB (YC7)
Defective connec-
tor cable or poor
contact in the con-
nector (1000-sheet
finisher).
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
Punch slide motor and punch PWB (YC3)
Punch slide sensor and punch PWB (YC6)
Punch PWB (YC1) and DF main PWB (YC8)
Defective slide
sensor.
Replace the punch slide sensor.
Defective punch
slide motor.
Replace the punch slide motor.
Defective PWB.
Replace the punch PWB or DF main PWB
and check for correct operation.
(see page 1-5-2)
8420
Punch slide motor error 2
In detection of paper edges,
the paper edge cannot be
detected in 30 mm move.
Defective connec-
tor cable or poor
contact in the con-
nector (4000-sheet
finisher).
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
Punch slide motor and punch PWB (YC3)
Punch PWB (YC1) and DF main PWB (YC7)
Defective connec-
tor cable or poor
contact in the con-
nector (1000-sheet
finisher).
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
Punch slide motor and punch PWB (YC3)
Punch PWB (YC1) and DF main PWB (YC8)
Defective punch
slide motor.
Replace the punch slide motor.
Defective PWB.
Replace the punch PWB or DF main PWB
and check for correct operation.
(see page 1-5-2)
Code
Contents
Causes
Check procedures/
corrective measures
Y113480-7
Sevice Manual
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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