Epson C117001-N - DFX 5000+ B/W Dot-matrix Printer Service Manual page 164

Table 5-7. Printer Mechanism Repair (continued)
Symptom
Printing occurs
outside the paper
width.
The paper bail
assembly does not
work.
Continuous paper
becomes crumpled at
the front or rear
tractor assembly.
The tractor select
(front or rear) function
is not working.
Rev. A
Cause
The PW sensor is
defective.
The plunger is
defective.
The tension value of
the tractor wire spring
is incorrect.
The tractor select
sensor is defective.
The tractor select
gear is disconnected
from the tractor select
cam.
Checkpoint
Check the PWsensor.
Check the coil
resistance of the
plunger. (It should be
about 9 ohms.)
The distance
between the frame
and the seal securing
the white line should
be about 3 mm
(.12 inches).
Check the continuity
of the tractor select
sensor.
Visually check the
tractor select gear
holder.
Troubleshooting
Solution
w
sensor.
Replace the plunger.
PerForm the tractor
wire spring tension
adjustment, as
described in Section
4.1.3.
Replace the tractor
select sensor.
Join the tip of the
tractor select lever to
the tractor select gear
holder.
5-27