Table of Contents
Advertisement
9.2.37 Felt and Wick Service
1.
2.
3.
4.
Turn power off at the operator control
panel.
Remove the forms tractor unit.
Remove the printer top cover.
Unthre'!d the ribbon from its guides and
lay it on top of the ribbon in the ribbon box.
5.
Remove the print head cover (two screws)
Ii .
6.
7.
8.
Remove the plastic cover on the felt
reservoir
B .
Saturate the felt with IBM No.6 oil.
Complete by reversing the first six steps.
9.2.38 Print Head Ribbon Shield
Adjustment
To ensure that the ribbon shield is properly aligned
with the platen, use the following procedure:
1.
Turn power off at the operator control
panel and remove the printer covers.
2.
Remove the print head forms guide (9.2.35).
3.
Loosen the two screws
II .
4.
Remove the platen and paper deflector.
5.
Reinstall the platen.
6.
A feeler gauge may be difficult to use on this
adjustment due to platen curve; however, three
IBM cards or five pieces of single part forms can
be used. Three cards are approximately 0.0195
inch (0.49 mm) and five pieces of paper are
approximately 0.015 inch to 0.020 inch (0.38
mm to 0.51 mm).
Place the cards or paper between the ribbon
guide and the platen, press the shield toward
the cards or paper, and tighten the two screws
I] .
7.
Clearances should be:
a. Enough space for the ribbon to pass
freely between the print head and the
shield.
b. A minimum of 0.008 inch (0.20 mm)
between the shield and the platen after
the cards or paper are removed.
9-44
9.2.39 Print Head Ribbon Lifter
Removal
1.
2.
3.
4.
5.
Turn power off at the operator control panel
and remove the printer covers.
Remove the print head (9.2.34). Adjust the
print head on installation.
Remove the screw
I]
and remove the
ribbon lifter.
When installing, adjust flush to 0.002 inch
(0.05 mm)
II
when knob
m
is set at the
highest mark.
Complete the procedure by reversing the
first four steps.
Advertisement
Table of Contents
