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SECTION VI.
TYPE 122 PRINTER
variances in paper thickness.
When used in conjunction with the forITls thickness adjuster
on the right side of the printer ITlechanisITl and the PRINT DENSITY switch on the auxiliary
control panel, the character /index adjustITlent provides optiITluITl print quality.
ForITls Thickness AdjustITlent - The forITls thickness adjustITlent is located on the right-hand side
of the printing ITlechanisITl (see Figure 6-1, E).
This lever perITlits ITlinor adjustITlents to
accoITlITlodate forITls of different thicknesses, e. g., when the nUITlber of carbons being
used is changed.
The Type 122 is capable of printing up to six carbon copies.
Type Roll - The type roll ITlechanisITl (see Figure
6
-1, F) pivots upward and to the left to perITlit
changing the ribbon and paper.
The printer ribbon is easily accessible when the type roll
is pivoted upward.
The type roll weighs less than seven pounds and can be changed by the
operator in approxiITlately two ITlinutes.
The type roll is ITlost easily changed when it is
in a horizontal position, i. e., not tilted upward.
Print ColuITln TiITling AdjustITlent - The drawer containing the printer electronics (located at the
rear of the printer logic cabinet) can be rotated outward to provide access to the controls
for individually adjusting the print haITlITlers for the correct tiITling.
FORMAT CONTROL
The horizontal forITlatting (i. e., the spacing between printed characters) is controlled
entirely by the prograITlITler.
The vertical forITlatting and the advancing of the paper forITls
Ii.
e., the beginning- and end-of-forITl spacing) is controlled by inforITlation included in the
print and space instruction in conjunction with the pre-punched vertical forITlat control tape in
the printer (see Figure 6-2).
The holes punched in the tape are sensed by photo diodes, and
the forITlatting inforITlation is sent to the printer control for interpretation and appropriated
control action.
TAPE
CHANNELS
tltlltllllllllillllllflltillliiJttf!flilIli
SIX LINES PER INCH TAPE
tIllllil11111ilIfliilllillttttllIIIliiIII1illIl!iI!IiIfl!
EIGHT LI NES PER INCH TAPE
Figure
6
-2.
Type 122 Printer Vertical ForITlat Control Tape
6-3
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