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SECTION VI.
TYPE 122 PRINTER
Paper Tension Adjustment - An adjusting knob (see Figure 6 -1, B) for control of paper tension
is accessible on the lower left side of the printer mechanism.
Proper adjustment of this
control prevents tearing of the form and assures smooth movement of the form through
the paper feed mechanism.
Tractor Position Adjustment - A single adjustment knob on the right-hand side of the printing
mechanism (see Figure 6-1, C) may be used to position all four tractors at one time while
the machine is either running or stopped.
The two right-hand tractors are individually
adjustable and have vernier controls for adjusting the side tension of the paper.
A side-
tension adjustment can also be performed while the printer is either running or stopped.
A
o
1
B
A-Head-of-Form
Adjustment
B-Paper Tension
Adjus tment
C-Tractor Position
Adjustment
G
D - Charac te r / Index
Adju s tment
E-Form Thickness
Adjustment
F-Type Roll
F
E
c
H
G-Tractor Pin Feeds
H-Auxiliary Control Panel
I-Ribbon Feed Unit
Figure 6-1.
Printer Mechanical Controls and Adjustments
Character /Index Adjustment - This control is located in the top left area of the printer mechanism
(see Figure 6-1, D).
This adjustment compensates electronically for the timing shift that
occurs when a forms thickness change is made (i. e., when the number of carbons being
used is changed).
This control advances or retards the print timing to adjust for the
6-2
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