3NB/3ND/3N0/3NK
1-4-30
(20)
CF paper entry
motor does not
operate.
1. Defective connector
cable or poor con-
tact in the connector.
Reinsert the connector. Also check for continuity within the
connector cable. If none, replace the cable.
CF paper entry motor and CF main PWB (YC10)
2. Defective drive trans-
mission system.
Check if the rollers and gears rotate smoothly. If not,
grease the bushes and gears. Check for broken gears and
replace if any.
3. Defective motor.
Replace the CF paper entry motor.
4. Defective PWB.
Replace the CF main PWB and check for correct operation.
(21)
CF staple motor
does not operate.
1. Defective connector
cable or poor con-
tact in the connector.
Reinsert the connector. Also check for continuity within the
connector cable. If none, replace the cable.
CF staple motor and CF main PWB (YC13)
2. Defective drive trans-
mission system.
Check if the rollers and gears rotate smoothly. If not,
grease the bushes and gears. Check for broken gears and
replace if any.
3. Defective motor.
Replace the CF staple motor.
4. Defective PWB.
Replace the CF main PWB and check for correct operation.
(22)
CF feedshift sole-
noid does not oper-
ate.
1. Defective connector
cable or poor con-
tact in the connector.
Reinsert the connector. Also check for continuity within the
connector cable. If none, replace the cable.
CF feedshift solenoid and DF main PWB (YC17)
2. Defective solenoid.
Replace the CF feedshift solenoid.
3. Defective PWB.
Replace the CF main PWB and check for correct operation.
(23)
Mailbox drive
motor does not
operate.
1. Defective connector
cable or poor con-
tact in the connector.
Reinsert the connector. Also check for continuity within the
connector cable. If none, replace the cable.
Mailbox drive motor and CF main PWB (YC5)
2. Defective drive trans-
mission system.
Check if the rollers and gears rotate smoothly. If not,
grease the bushes and gears. Check for broken gears and
replace if any.
3. Defective motor.
Replace the Mailbox drive motor.
4. Defective PWB.
Replace the Mailbox main PWB and check for correct oper-
ation.
(24)
Punch motor does
not operate.
1. Defective connector
cable or poor con-
tact in the connector.
Reinsert the connector. Also check for continuity within the
connector cable. If none, replace the cable.
Punch motor and Punch PWB (YC4)
2. Defective drive trans-
mission system.
Check if the rollers and gears rotate smoothly. If not,
grease the bushes and gears. Check for broken gears and
replace if any.
3. Defective motor.
Replace the Punch motor.
4. Defective PWB.
Replace the Punch PWB and check for correct operation.
Problem
Causes
Check procedures/corrective measures
Y113480-7
Sevice Manual
Summary of Contents for AK-730
Page 1: ...SERVICE MANUAL Options DF 790 BF 730 MT 730 AK 730 PH 7C Code Y113480 7 ...
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Page 32: ...3NB 3ND 3N0 3NK 1 2 14 3 Remove tape and pad Figure 1 2 18 Tape Pad Service Manual Y113480 7 ...
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