Table of Contents
Advertisement
9.2.15 Forms Feed Motor/Emitter
1.
2.
3.
4.
5.
6.
Turn off power to printer.
Remove printer cover (9.2.1).
Connect a jumper wire between test points
FMA and G7
B
(forms driver A to ground).
Move the BLACK wire from TPB2-6C to
TPB2-3C
g .
Move the RED wire from TPB2-5B to
TPB2-6C
[J .
Loosen photocell assembly (two screws
a
behind motor) so that assembly will
slide but not fall of its own weight.
7.
Set up a voltmeter to read 5 Vdc.
8.
Connect the negative lead
m
to G8
(ground).
a. If your machine has an emitter amplifier
card, connect the positive lead
Ii)
to
TPA (forms emitter A) on the amplifier
card.
b. If your machine has no emitter amplifier
card, connect the positive lead
IJ
to the
system I/O board 01 A-A2-V3007 (forms
emitter A).
9.
Turn on power to printer.
10.
Slide the photocell down as far as possible.
11.
Slowly slide or gently pry the assembly up
until meter first shifts to +5 Vdc (up level)'
Keep the assembly as close to this point as
possible.
Note:
Ignore the initial reading if it is at an
up level.
12.
Hold photocell assembly firmly in place
and tighten the two screws.
13.
Replace the platen and verify the adjustment
as follows:
a. Put 'a small amount of force on the platen
knob in the forward direction. The
meter should stay at +5 Vdc (up level)
when you remove your hand from the
knob.
b. Put a small amount of force on the platen
knob in the reverse direction. The meter
should shift to 0 Vdc (down level), then
rise something less than +5 Vdc when
you release the platen knob.
14.
Readjust if necessary.
15.
Turn power off to printer.
16.
Remove meter and jumper wire.
17.
Move the RED wi re from TPB2-6C back to
TPB2-5B
II.
18.
Move the BLACK wire from TPB2-3C back
to TPB2-6C
II .
19.
Remove the platen and reinstall printer
cover.
20.
Check adjustment by running diagnostic
SPRT7: readjust if necessary.
Note:
If adjusted incorrectly, the forms
motor may run backwards.
Bluemh~J--
0-0--0
Blue
Red/Wh~
Red
I
~
-
Frame
White~
0-0--0
Black
9-24
Advertisement
Table of Contents
