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4. MECHANICAL SYSTEM B
4.
Attaching
the Heater and Upper
Fixing
Roller
Attach the heater and the upper fixing
roller as in detaching
them but in reverse
order while noting the following:
5.
Adjusting
the Nip Width (tightening
the pressure
adjusting
nut)
If the nip width
is not as shown
in
Figure 4-715, turn the bolt to adjust it.
a.
i.
ii.
b.
i.
ii.
Heater
Do not touch the surface of the heater.
Make
sure that the end bearing
the
manufacturer's
name is to the front.
Upper Fixing Roller
Wrap
the roller
with
copy
paper
to
prevent
soiling or scarnng
the surface
of the roller.
Make sure that the end with the longer
cut-off is to ward the rear.
L-4
a
Figure 4-715
Dimension
Measure after the upper and
lower roller have become heated.
1
b
1
4.5 i0.5
mm
I
Table 4-700
a.
Measuring
the Nip Width
If the roller is not heated,
wait for 15
minutes
after
the
WAIT
indicator
has
changed
to green;
then,
make 20 copies
before taking measurements.
b.
Taking Measurements
1)
Lift the copyboard
cover, and make an
A3 copy of a solid black document.
2)
Switch the copier OFF as soon as the
leading edge of the copy comes out of
the copier, and open the front door and
the delivery assembly.
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