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3103 Platen Pressure Rolls
Service Check
1.
Remove the access cover (3051).
2;
Remove the top cover (3052).
3.
Check for a 1 mm (0.040 in.) gap between the
pressure rolls
e
and the platen with the
paper-release lever
G
in the forward position.
4.
Move the paper release lever to the rear position.
5.
Check for a 0.00 to 0.51 mm (0.00 to 0.020 in.)
gap between the paper-release lever and platen.
.6.
Insert a 0.05 mm gauge (0.002 in.) between the
platen and the pressure rolls at 1, 2, 3, and 4
(front and rear rolls). The pressure rolls should
touch and put pressure on the platen.
If
any of the adjustments are not correct, perform
the adjustment.
Adjustment
1.
Switch off the printer power.
2.
Remove the top cover (3052).
3.
Remove the paper deflector (3101) and install the
platen (do not install the paper deflector).
4.
Put the paper-release lever
G
in rear position.
5.
Loosen the four clamping hubs •
along the
paper-release lever shaft.
6.
Loosen the end-of-forms switch override arm
setscrew (3207).
7.
Hold the cam follower
G)
to the cam
0
by insert-
ing a screwdriver between the stud and the cam
follower.
3-12
SY34-0613
8.
Loosen the four nuts holding both pressure roll
arm
e
assemblies.
9.
Move the arms to the rear position; then move the
arms forward until no gap is present between the
rear pressure rolls and the platen; tighten the four
nuts.
10. Check for drag on the pressure rolls
e
with a
0.05 mm (0.002 in.) gauge inserted between the
platen and the pressure rolls.
11. Repeat steps 8,9, and 10 until the adjustment is
correct.
12. Pivot the clamping hubs •
toward the platen so
that the bellcrank
0
seats on the bottom of the
four openings; then tighten the four clamping
hubs • .
Note: Ensure that all pressure rolls remain in
contact with the platen when doing this adjust-
ment.
13. Remove the screwdriver (inserted in step 7), move
the paper-release lever
G
to the forward position,
and check for 1 mm (0.040 in.) gap between the
platen and the pressure rolls
e.
14. Repeat steps 12 and 13 until the adjustment is
correct.
15. Move the paper-release lever
G
to the rear posi-
tion, and tighten the end-of-forms override arm
setscrew; check the end-of-forms switch (3207),
and adjust it if necessary.
16. Remove the platen (3101).
17. Reinstall the paper deflector (3101).
18. Reinstall the top cover (3052).
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