2LL/2LJ/2LH
1-4-68
1-4-4 Electric problems
If the part causing the problem was not supplied, use the unit including the part for replacement.
Troubleshooting to each failure must be in the order of the numbered symptoms.
Problem
Causes
Check procedures/corrective measures
(1)
The machine does
not operate when
the main power
switch is turned on.
1. No electricity at the
power outlet.
Measure the input voltage.
2. The power cord is
not plugged in prop-
erly.
Check the contact between the power plug and the outlet.
3. Broken power cord.
Check for continuity. If none, replace the cord.
4. Defective main
power switch.
Check for continuity across the contacts. If none, replace
the power source PWB (see page 1-5-43).
5. Defective power
source PWB.
Replace the power source PWB (see page 1-5-43).
(2)
MP lift 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.
MP lift motor and relay PWB (YC3)
Relay PWB (YC12) and engine PWB (YC17)
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 MP lift motor.
4. Defective PWB.
Replace the engine PWB and check for correct operation
(see page 1-5-43).
(3)
Scanner 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.
Scanner motor and ISC PWB (YC5)
ISC PWB (YC3) and main PWB (YC11)
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 scanner motor.
4. Defective PWB.
Replace the main PWB and check for correct operation
(see page 1-5-38).
(4)
Registration motor
does not operate
(45 ppm/55 ppm
model only).
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.
Registration motor and feed PWB 1 (YC25)
Feed PWB 1 (YC2) and engine 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 registration motor.
4. Defective PWB.
Replace the engine PWB and check for correct operation
(see page 1-5-43).
Service Manual Y113350-5
Summary of Contents for d-COPIA 3500MF
Page 1: ...SERVICE MANUAL Copiers d Copia 3500MF 4500MF 5500MF Code Y113350 5...
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Page 24: ...2LL 2LJ 2LH 1 1 10 This page is intentionally left blank Service Manual Y113350 5...
Page 242: ...2LL 2LJ 2LH 1 3 180 This page is intentionally left blank Service Manual Y113350 5...
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Page 439: ...2LL 2LJ 2LH 2 2 7 45 ppm model 55 ppm model only Y113350 5 Sevice Manual...
Page 541: ...1 1 INSTALLATION GUIDE INSTALLATION GUIDE FOR DOCUMENT PROCESSOR...
Page 576: ...INSTALLATION GUIDE FOR PAPER FEEDER...
Page 589: ...INSTALLATION GUIDE FOR LARGE CAPACITY FEEDER...
Page 604: ...INSTALLATION GUIDE FOR SIDE DECK...
Page 628: ...INSTALLATION GUIDE FOR 1000 SHEETS FINISHER...
Page 641: ...INSTALLATION GUIDE FOR 4000 SHEETS FINISHER...
Page 657: ...INSTALLATION GUIDE FOR FINISHER ATTACHMENT KIT...
Page 671: ...INSTALLATION GUIDE FOR CENTER FOLDING UNIT...
Page 688: ...INSTALLATION GUIDE FOR MAILBOX...
Page 696: ...INSTALLATION GUIDE FOR PUNCH UNIT...
Page 716: ...INSTALLATION GUIDE FOR INNER JOB SEPARATOR...
Page 717: ...1 2 3 A B...
Page 718: ...7 8 4 5 6...
Page 719: ...11 9 10...
Page 720: ...A 1 2 3 2 14 15 12 13 16...
Page 721: ...B 3 2 1 2 19 17 18...
Page 722: ...21 22 20...
Page 723: ...26 27 23 24 28 25...
Page 724: ...30 29...
Page 725: ...INSTALLATION GUIDE FOR RIGHT JOB SEPARATOR...
Page 726: ...5 1 2 3 4 5 7 7 6 A B C A B...
Page 727: ...9 10 11 12 13 14 7 8 C...
Page 728: ...INSTALLATION GUIDE FOR FAX System...