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Problem
(21)
Paper conveying
clutch does not
operate.
(22)
MP paper feed
clutch does not
operate.
(23)
Registration clutch
does not operate
(35 ppm model
only).
(24)
Middle clutch does
not operate
(35 ppm model
only).
(25)
Duplex clutch 1
does not operate
(35 ppm model
only).
(26)
Duplex clutch 2
does not operate
(35 ppm model
only).
Service Manual
Causes
1. Defective connector
cable or poor con-
tact in the connector.
2. Defective clutch.
3. Defective PWB.
1. Defective connector
cable or poor con-
tact in the connector.
2. Defective clutch.
3. Defective PWB.
1. Defective connector
cable or poor con-
tact in the connector.
2. Defective clutch.
3. Defective PWB.
1. Defective connector
cable or poor con-
tact in the connector.
2. Defective clutch.
3. Defective PWB.
1. Defective connector
cable or poor con-
tact in the connector.
2. Defective clutch.
3. Defective PWB.
1. Defective connector
cable or poor con-
tact in the connector.
2. Defective clutch.
3. Defective PWB.
Check procedures/corrective measures
Reinsert the connector. Also check for continuity within the
connector cable. If none, replace the cable.
Paper conveying clutch and feed PWB 2 (YC5)
Feed PWB 2 (YC1) and engine PWB (YC4)
Replace the paper conveying clutch.
Replace the engine PWB and check for correct operation
(see page 1-5-43).
Reinsert the connector. Also check for continuity within the
connector cable. If none, replace the cable.
MP paper feed clutch and relay PWB (YC3)
Relay PWB (YC12) and engine PWB (YC17)
Replace the MP paper feed clutch.
Replace the engine PWB and check for correct operation
(see page 1-5-43).
Reinsert the connector. Also check for continuity within the
connector cable. If none, replace the cable.
Registration clutch and feed PWB 1 (YC22)
Feed PWB 1 (YC2) and engine PWB (YC5)
Replace the registration clutch.
Replace the engine PWB and check for correct operation
(see page 1-5-43).
Reinsert the connector. Also check for continuity within the
connector cable. If none, replace the cable.
Middle clutch and feed PWB 2 (YC7)
Feed PWB 2 (YC1) and engine PWB (YC4)
Replace the middle clutch.
Replace the engine PWB and check for correct operation
(see page 1-5-43).
Reinsert the connector. Also check for continuity within the
connector cable. If none, replace the cable.
Duplex clutch 1 and relay PWB (YC11)
Relay PWB (YC13) and engine PWB (YC23)
Replace the duplex clutch 1.
Replace the engine PWB and check for correct operation
(see page 1-5-43).
Reinsert the connector. Also check for continuity within the
connector cable. If none, replace the cable.
Duplex clutch 2 and relay PWB (YC7)
Relay PWB (YC1) and engine PWB (YC14)
Replace the duplex clutch 2.
Replace the engine PWB and check for correct operation
(see page 1-5-43).
1-4-72
2LL/2LJ/2LH
Y113350-5
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