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_ 98458/C
Mainframe
Adjustments
.
Adjustments
Special tools are not required for any mainframe adjustments.
Adjustments
to
the
Thermal Printer
Instructions:
1.
Turn off the 9845B/C and disconnect the power cord.
2.
Remove the printer paper, CRT and shell.
3. Remove the bezel
and
use the service bracket to hold the bezel
in
the upright position. Do
not disconnect the wiring.
4.
Loosen the 2 adjustment lock screws on either side of the print head, located
in
the
adjustment cams.
5.
Install the CRT, printer paper,
and
power cord.
6,
Turn on the 9845B/C and advance enough printer paper to extend back over the rear of
the base.
7.
Run
anyone
of the
follOWing
tests:
a.
9845B/C System Exerciser, PRNTR.
b.
9845B/C Diagnostic,
k3.
c.
Key
in
and
run a program to continuously print
80
characters.
8. Adjust the cams for darkest print across the entire width of the printing area.
9.
Tighten the lock screws on the adjustment cams and run the test program again to verify
correct adjustment.
to. Turn off the 9845B/C and remove the CRT
and
printer paper.
11. Install the shell, bezel assembly,
and
printer paper.
12. Return the
9845B/C to normal operation.
I
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