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2NC/2NF/2NG/2NN/3P7/3P8/3P9
1-4-90
1-4-7 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 main power switch.
5. Defective power
source PWB.
Replace the power source PWB (see page 2-2-26).
6. Defective main/
engine PWB.
Replace the main/engine PWB and check for correct oper-
ation (see page 2-2-11).
(2)
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 main/engine PWB (YC1)
2. Defective drive trans-
mission system.
Check if the 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/engine PWB and check for correct oper-
ation (see page 2-2-11).
(3)
Duplex 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.
Duplex motor and main/engine PWB (YC2)
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 duplex motor.
4. Defective PWB.
Replace the main/engine PWB and check for correct oper-
ation (see page 2-2-11).
(4)
Toner 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.
Toner motor and main/engine PWB (YC12)
2. Defective motor.
Replace the toner motor.
3. Defective PWB.
Replace the main/engine PWB and check for correct oper-
ation (see page 2-2-11).
Summary of Contents for d-Copia 1801MF Plus
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Page 449: ...Installation Guide DP 480 Document processor Installation Guide...
Page 452: ...2 3 4 5 6 A...
Page 453: ...3 7 8 9 B C C...
Page 454: ...4 10...
Page 467: ...PF 480 300 sheet Paper feeder Installation Guide...
Page 470: ...2 5 6 4 3 B M3x8 B M3x8 B M3x8 B M3x8 1 2...
Page 471: ...3 9 10 8 7 1 2...
Page 472: ...4 13 12 11 1 2 C...
Page 473: ...5 15 14 E D D E D D E D D E D D...
Page 476: ...DU 480 duplex unit Installation Guide...
Page 478: ...1 2 3 1 A B M3x8...
Page 479: ...2 6 7 5 4 A A B M3x8...
Page 483: ...IB 33 Network interface kit Installation Guide...
Page 484: ...2 3 1 IB 33 2013 7 303PB56710 01 A B...
Page 485: ...6 7 5 4 2013 7 303PB56710 01 B YC2007 A...
Page 486: ...FAX System X Installation Guide...
Page 489: ...2 5 4 3 2 B M3x8 A YC 2003...
Page 490: ...3 8 9 7 6 C G G 8 9 7 6 C...
Page 491: ...4 11 10 12 13 D D E...