REV.-A
4.1 ADJUSTING THE PRINTER MECHANISM
This section describes the various adjustments you may need to make to the printer mechanism.
4.1.1 Paper feed Motor Backlash Adjustment
In the PF motor backlash adjustment, the pinion gear of the PF motor is meshed smoothly with the cog.
If the pinion gear is poorly aligned, printer operation becomes noisy, and the accuracy of character
Iignment
during printing suffers.
1.
2.
3.
Remove the PF motor, along with the Right frame, from the printer mechanism (see Section 3.2.5. 1).
Loosen the two CBS(0)
(M3
X 6) screws that hold the PF motor to the Right frame.
Check the alignment of the PF motor pinion gear with the pulley cog. Move the Right until you judge
that there is a gap of about 0.05-0.15 mm (0.002 -0.006 inch) between the two. Tighten the two
CBS(0)
(M3
X 6) screws.
/“
o “
,
\
fy\
.
\
Belt Pulley
Pinion Gear
.-
,-
(
:,;>
0
I
/’
0.05-0.15 mm
“4
-/
/
4
.
.
0 ‘
Figure 4-1. Paper Advance Motor Backlash Adjustment
4-1
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