2L6/2N6/2N5/2N4-1
1-4-168
8110 DF shift motor 1 error
(4000-sheet finisher)
when it has travelled 160 mm
after DF shift motor 1 is
driven.
DF shift motor 1
[front]
1. Execute U240 Motor - Sort Test to check
the finisher operation (see page 1-3-
134).
2. Manipulate the front shift guide back and
forth to check that it is smoothly
operable.
3. Check that the drive from the motor
reaches the front shift guide.
4. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
DF shift motor 1 and DF main PWB
(YC14)
5. If the wiring is disconnected, shorted or
grounded, replace the wiring.
6. Replace the DF shift motor 1
DF shift sensor 1
[front]
1. Execute U241 Finisher - Shift Front HP
to check the finisher switch (see page 1-
3-136).
2. Check that the sensor and its mounting
bracket are correctly positioned.
3. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
DF shift sensor 1 and DF main PWB
(YC23)
4. Replace the DF shift sensor 1.
DF main PWB Replace the DF main PWB (Refer to the
service manual for the document finisher).
Code Contents Related parts
Check procedures/
corrective measures