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1-4-77
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 switch.
5. Defective power
source PWB.
Replace the power source PWB (see page 1-5-63).
6. Defective main PWB. Replace the main PWB and check for correct operation
(see page 1-5-54).
(2)
Eject 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.
Eject motor and engine PWB (YC8)
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 eject motor.
4. Defective PWB.
Replace the engine PWB and check for correct operation
(see page 1-5-58).
(3)
Power source fan
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.
Power source fan motor and main PWB (YC10)
2. Defective motor.
Replace the power source fan motor.
3. Defective PWB.
Replace the engine PWB and check for correct operation
(see page 1-5-58).
(4)
Eject fan 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.
Eject fan motor and engine PWB (YC8)
2. Defective motor.
Replace the eject fan motor.
3. Defective PWB.
Replace the engine PWB and check for correct operation
(see page 1-5-58).
Y11
8
240-1
Service Manual
Summary of Contents for d-Copia 3002MF plus
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Page 548: ...Installation Guide DP 7100 Document processor Installation Guide...
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Page 615: ...DP 7120 Document processor Installation Guide...
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Page 636: ...19 9 11 10 13 14 12 10 mm A B...
Page 646: ...PF 791 500 x 2 Paper feeder Installation Guide...
Page 654: ...PF 810 3000 sheet deck Installation Guide...
Page 667: ...DF 791 3000 sheet finisher Installation Guide...
Page 682: ...DF 7120 1000 sheet finisher Installation Guide...
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Page 700: ...AK 740 Bridge unit Installation Guide...
Page 702: ...MT 730 Mailbox Installation Guide...
Page 717: ...PH 7A C D Punch unit Installation Guide...
Page 738: ...DT 730 B Document tray Installation Guide...
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Page 741: ...FAX System 12 Installation Guide...