Symptom Step Check Item Result Action
•
The leading edge
of the paper is
stationary inside
the Duplex Unit.
9
Is the Paper Guide Mylar
deformed or dirty?
YES Clean or replace the Mylar.
NO
Check the Mylar moving
mechanism.
10
Does the Gate Switching
Plate operate properly?
(Is Duplex Unit Gate
Switching Solenoid SL31
energized for a paper
length of 300 mm or
longer?)
YES
Adjust the stroke of the
Solenoid or check the
Solenoid.
∗
Does the voltage across
PJ3G-5 on PWB-G and
GND change from DC24V
to DC0V after the Start
Key has been pressed?
NO
Replace PWB-G or PWB-A
(PF-201) (PF-1D).
11
Slide out the Duplex Unit
and remove the PWB
Cover. Then, slide the
Duplex Unit back into the
copier. Does the voltage
across PJ3G-2 on PWB-G
and GND change from
DC5V to DC0V when
Duplex Unit Trailing Sensor
PC14 is blocked by a sheet
of paper in the above
condition?
YES
Check the Actuator for
operation and PC14.
NO
Replace PWB-G or PWB-A
(PF-201) (PF-1D).
•
Paper is
stationary near
the take-up port of
the Duplex Unit.
12
Slide out the Duplex Unit
and remove the PWB
Cover. Then, slide the
Duplex Unit back into the
copier. Does the voltage
across PJ2G-4 on PWB-G
and GND change from
DC5V to DC0V when
Duplex Unit Paper Empty
Sensor PC15 is blocked by
a sheet of paper in the
above condition?
YES
Check the Actuator for
operation and PC15.
NO
Replace PWB-G or PWB-A
(PF-201) (PF-1D).
T-27