Installation - GE TermiNet Vertical Format Unit Instruction Manual

Vertical Format Unit (VFU)
CHANNEL I
FORM FEED
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SPROCKET
HOLES
CHANNEL 6
VERTICAL TAB
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OVT-4004
Figure 2. Standard, One-Inch-Wide (2.54 cm),
Eight-Channel Paper Tape
for Use with VFU
INSTALLATION
Read instructions completely before beginning VFU
installation. See Figure 3 for location of parts.
1. Remove Printer from case.
2. Remove Left Ribbon Mechanism, loosen
cam pawl assembly screw and rotate cam pawl
assembly down.
3. Install VFU Assembly*, Idler, Gear and
Retaining Ring. Place belt (part of the VFU Assem-
bly) around Gear.
4. Readjust cam pawl assembly and rotate
pawl to a position in alignment with center of
spring-loaded shaft. Cam pawl assembly should be
places toward side frame enough for disengagement
of Gear, but away from side frame enough to:
a. Remove ribbon drive mechanism.
b. Put a small amount of force on platen
adjust knob so it will pop out freely.
GEK-36143
5.
Replace Left Ribbon Mechanism removed
in step 2.
6. Set belt tension such that a force of 2 oz.
(57 gms) applied at belt midpoint will cause a
deflection of 0.10 ±0.03 inch (2.5 ±0.8 mm).
7. TVFA Printed Circuit Board Strapping. To
minimize the fill character requirements for Vertical
Tab or Form Feed when using the VFU, strap Jl on
the TVFA should be in and J2 out. This will permit
the use of the rules for the disk-type VTFF as de-
scribed in the TermiNet 300 & 1200 Pri nter Operator's
Manual (GEK-36150), pp. 6-9 thru 6-16. However,
this strapping is not feasible under the following two
conditions.
•
TN300 Printer Model A, B or early C print-
ers on which TL was not brought out to the
VTFF plug on the motherboard.
• Any printer which may have to perform
Form Feeds of more than 11 inches (28 cm).
Under those two conditions J2 must be in and Jl out,
and additional fill characters must be provided in ac-
cordance with pp. 15-18 of this manual.
CONDITION
TN 1200 and TN300D
and later TN300C (TL
on motherboard) AND
Form Length 11 inches
(28 cm) or less
TN300 Model A, B or
early C (TL not on
motherboard) OR Form
Length Greater than 11
inches (28 cm) up to
14 inches (35Y:.cm)
Jl J2
IN OUT
OUT IN
8. Remove hardware and cover from back of
bustle; install TVFA board in slot marked VTFF_
Board components are on right side facing rear of
Printer.
9. Plug connector from VFU Assembly to
mother board. WHITE WIRE OF PLUG CONNEC-
TOR MUST BE UP WHEN PLUGGING INTO
*Secure VFU Assembly with shoulder screw and spacer (shown in Section A-A of Figure 3) and screw, lockwasher,
washer and spacer (stacked up as shown in top view of Figure 3). Fastener hardware is also shown as parts 1
through 4, 8 and 9 in Figure 9.
2