2PR
1-4-36
(5)MP paper feed
solenoid, ID solenoid,
duplex solenoid do
not operate.
Broken solenoid coil.
Check for continuity across the coil. If none, replace the solenoid.
Defective harness or
improper connector inser-
tion.
Reinsert the connector. Also check for continuity within the con-
nector harness. If none, remedy or replace the harness.
MP paper feed solenoid - Engine PWB (YC40)
ID solenoid - Engine PWB (YC617)
Duplex solenoid - Engine PWB (YC3)
Defective engine PWB.
Replace the engine PWB (See page 1-5-28).
(6)Main charging is
not performed.
Defective harness or
improper connector inser-
tion.
Reinsert the connector. Also check for continuity within the con-
nector harness. If none, remedy or replace the high voltage PWB
1 (See page 1-5-34).
High voltage PWB 1 - Engine PWB (YC600)
Defective main charger unit Replace the main charger unit (See page 1-5-15).
Defective high voltage PWB
1.
Replace the high voltage PWB 1 (See page 1-5-34).
Defective engine PWB.
Replace the engine PWB (See page 1-5-28).
(7)No developing
bias is output.
Defective harness or
improper connector inser-
tion.
Reinsert the connector. Also check for continuity within the con-
nector harness. If none, remedy or replace the high voltage PWB
1 (See page 1-5-34).
High voltage PWB 1 - Engine PWB (YC600)
Defective high voltage PWB
1.
Replace the high voltage PWB 1 (See page 1-5-34).
Defective engine PWB.
Replace the engine PWB (See page 1-5-28).
(8)Transfer charging
is not performed.
Defective harness or
improper connector inser-
tion.
Reinsert the connector. Also check for continuity within the con-
nector harness. If none, remedy or replace the high voltage PWB
2 (See page 1-5-41).
High voltage PWB 2 - Engine PWB (YC610)
Defective high voltage PWB
2.
Replace the high voltage PWB 2 (See page 1-5-41).
Defective engine PWB.
Replace the engine PWB (See page 1-5-28).
(9)The message
requesting paper to
be loaded is shown
when paper is pres-
ent in the cassette.
Defective paper sensor 1/2. Replace the engine PWB (See page 1-5-28).
Broken paper sensor 1/2
actuator.
Check the bending of the actuator lever of the paper sensor 1/2 if
there is trouble, remedy or replace.
Defective engine PWB.
Replace the engine PWB (See page 1-5-28).
(10)The message
requesting paper to
be loaded is shown
when paper is pres-
ent in the MP tray.
Defective harness or
improper connector inser-
tion.
Reinsert the connector. Also check for continuity within the con-
nector harness. If none, remedy or replace the harness.
MP tray sensor - Engine PWB (YC21)
Defective MP tray sensor.
Replace the MP tray sensor.
Defective engine PWB.
Replace the engine PWB (See page 1-5-28).
(11)The size of paper
in the cassette is not
displayed correctly.
Defective harness or
improper connector inser-
tion.
Reinsert the connector. Also check for continuity within the con-
nector harness. If none, remedy or replace the harness.
Cassette size switch - Engine PWB (YC9)
Defective cassette size
switch.
Replace the cassette size switch.
Defective engine PWB.
Replace the engine PWB (See page 1-5-28).
Problem
Causes
Check procedures/corrective measures
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Страница 171: ...2PR 2 3 11 2 3 3 Paper exit PWB Figure 2 3 3 Paper exit PWB silk screen diagram PH1 YC4 YC3 YC2 YC6 YC5 YC7 YC8 YC1...
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