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I
G
I
>
L
STOP
(cont)
SINGLE SPACE
FORM SPACE
SECTION VI.
TYPE 122 PRINTER
since.
(The interlock mayor may not have been
cleared.) The START switch must always be
pressed to restart printing when the STOP indi-
cator is illuminated.
Pressing this switch causes the paper to be advanced one
line.
If the switch is held down, paper will continue to
advance on a single -line basis at the rate of approximately
ten lines per second.
The moving of paper when this
switch is pressed, however, occurs only when the printer
is in a normal stop condition (as evidenced by the illumi-
nation of the STOP indicator) and after all interlocks
associated with the paper moving system are cleared.
Pressing the FORM SPACE switch causes paper to be
advanced until the head of the form (channel one) is
sensed in the format control tape.
This switch is ef-
fective only when the printer is in a normal stopcondi-
tion, i. e., with the STOP indicator illuminated and
all interlocks associated with the paper moving system
cleared.
It is also possible to activate this function
when the type roll assembly is disengaged (i. e., tilted
upward out of the normal printing position) and the type
roll is stopped.
Pressing the FORM SPACE switch
while the type roll assembly is disengaged results in
the same paper movement as when the assembly is
seated and locked in place.
NOTE: When activating the FORM SPACE switch
while the type roll is disengaged, it is
necessary to hold the switch depressed
until paper movement stops, i. e., until
the head of form is reached; otherwise,
the advancing of the paper stops short of
the head of form.
The indicators described below are visible only when illuminated.
CYCLE
FORMS
LAMP
This indicator is illuminated when a check condition
occurs that is associated with the printer control
circuitry, e. g., parity failure on the optical code
disc or failure of one of the ring counters.
A
CYCLE indication signifies that the last line of print
may be incorrect.
Pressing the START switch clears
a CYCLE indication, although other printer interlock
conditions may prevent continuation of printing.
This indicator is illuminated when an interlock condi-
tion has occurred in the paper feed system, i. e., either
paper supply depletion or paper not properly loaded.
Pressing the START switch clears the FORMS indicator
provided that the interlock condition has been cleared.
The LAMP indicator is illuminated when the lamp for
either the vertical format control tape or the optical
code disc is not operating properly.
6-7
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