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If
STOP
SECTION III.
TYPE 123 CARD READER
Pressing the STOP switch removes the reader from the
ready status and illuminates the STOP indicator.
The busy
signal to the central processor is activated and remains
active until the START switch is pressed.
If a read instruc-
tion is in process in the card control when the STOP switch
is pressed, that instruction is transmitted to the reader
and executed.
Ma,in Control Panel Indicators
The indicators described below are visible only when illuminated:
CARDS
INPUT
TRANSPORT
CYCLE
VALIDITY
READER
The CARDS indicator is illuminated when the output stacker
is full, or when both the input hopper and the wait station are
empty, or when the cards in the stacker are not pressing
against the stacker feed rolls.
The INPUT indicator is illuminated when the wait station is
either not filled following a START switch depression or not
refilled following a read instruction.
Corrective action by
the operator is required (see page 3-7) and, in most cases,
may be performed while the machine covers are in place.
The TRANSPORT indicator is illuminated when a jam condition
occurs which may require the operator to swing open the rear
doors on the device before clearing the jam condition (see page
3-8).
The transport motors are turned off automatically when
this indicator is illuminated.
NOTE:
After a TRANSPORT indication, it becomes
necessary to cycle up the device again by
pressing the POWER OFF, POWER ON,
RUNOUT, and TRANSPORT switches.
The CYCLE indicator is illuminated when the reader control
detects a cycle check.
The indicator remains illuminated
until the next PDT instruction is issued to the integrated
card control.
A cycle check indicates a failure in the photo-
cell circuit at the reading station.
Under program control,
the integrated card control may :cemain busy until corrective
action is taken by the operator, offset- stack the error card
and continue to process cards, or offset-stack the error card
and remain busy until corrective action is taken by the operator.
The VALIDITY check (illegal punch) indicator is illuminated
whenever an illegal combination of holes occur in the card
column being read.
The indicator remains illuminated until
the next PDT instruction is issued to the integrated card
control.
Under program control, the integrated card control
may remain busy until corrective action is taken by the operator,
offset-stack the error card and continue to process cards, or
offset-stack the error card and remain busy until corrective
action is taken by the operator.
The READER indicator is illuminated when a machine failure
occurs which the operator does not normally correct.
This
indicator is also illuminated when the reader is in the TEST
mode.
The nature of the failure is indicated on the auxiliary
control panel, i. e., POWER, PICKER, or HEAT.
3-3
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