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cards or to enter
special
codes.
When
the card
is
punched,
the multiple
punches
entered,
punch
out
simultaneously.
If
the
multipunch
special
character
is
not
one
of
the standard
64
characters, printing
is
inhibited.
This
key
places
the
keyboard
in
numeric
shift,
and
overrides
alpha
shift
key
action or alpha
programming.
One
application
of multipunching
is
the "credit"
punch.
Where
a
numeric
quantity
(for
example, balance due)
should
indicate credit
due, the quantity
is
marked
while punching.
Hold
down
MULT
PCH
at
the
desired
column
of
the
field,
key
in
the
numeric
digit,
press
the dash
(—
)
key, then
release
MULT
PCH.
This provides
a credit
punch
in
that
position
of
the
field.
CAUTION
Cards multipunched
on
this
machine
should not be
duplicated
on
the
IBM
26
or
29
Card Punch,
since
characters
considered
valid in
this
model
exceed
the
printing
capabilities
of
Models
26
and 29 and can
cause
damage
to
their
print
units.
DUP
Pressing
this
key
(called
VER DUP
in verify
models;
see
Figure 4) duplicates
common
information
from any
card
into the following card
in
a
gangpunch
operation.
Manual
operations
are
at
10
columns/ second
when
DUP
is
held
pressed
in
program
level 0,
or
at
10
fields/second
when
DUP
is
held pressed
in
program
levels 1-6.
In
verify
mode,
in a
LZ
programmed
field,
the
DUP
key
is
active
only
in
the high-order position
of
the
field.
For
detailed
information,
see
"Punch
a
Record/Card"
in
Section
3.
FIELD/WORD BKSP
This two-function
key
is
described
by
each
function.
Field
Backspace
FIELD/WORD BKSP
returns the
column
indicator to the
first
column
of the
field
being
keyed
when
under program
control.
When
a
keying
error
is
sensed
in
the
last
column
of
a
normal
field
and
this field
is
followed
by
auto
skip or
auto dup,
the
automatic function
is
performed
before
FIELD/WORD
BKSP
can
be
pressed;
however,
when
FIELD/WORD
BKSP
is
operated, the
column
indicator
backspaces over the automatic
fields
to the
first
column
of
the
manual
field
in
which
the
error
occurred.
The column
indicator returns to
01
if
no manual
fields
have
been
encountered and any automatic
function
in
column
01
is
reinitiated.
When
operating
in
program
level 0,
a
field
definition
is
ineffective;
the
FIELD/WORD
BKSP
performs
a
single
column
backspace
each
time
it
is
operated.
With
REC ADV/C
ARD
FEED
set
to
AUTO,
a
keying
error in the
last
column
of
the
last
manual
field
of
the record
cannot be
corrected
(punch mode).
In other
words,
FIELD/WORD
BKSP
cannot
return the
column
indicator to the previous
record
once
it
has passed
from column 80
to
column
01
of
the
next
record.
With
REC
ADV/CARD FEED
set
to
MANUAL,
the
column
indicator
does not
progress
beyond
00,
and
correction
is
possible
before
proceeding
to the
next
record.
Word
Backspace
The
FIELD/WORD BKSP
key
operates
as
a
word
backspace
key
when
used with
the
ALPHA
shift
key.
Pressing
and
holding
ALPHA,
then
pressing
FIELD
BKSP,
returns the
column
indicator
to
the
column
following the
last
manually-keyed
space, or the
first
column
of
a
manual
field,
whichever occurs
first.
This
is
especially useful in text
processing jobs, or
in
alpha
name
fields,
where
only
the
last
word keyed
needs
correction rather
than
the
complete
field.
Note
that
an
alphabetic
programmed
field
does not
cause
word
backspace;
it
requires
depression
of
ALPHA
and
WORD
BKSP
together.
If
a
manual
skip,
dup,
or
auto function
is
employed
after
the
last
alpha
word
is
keyed,
and
correcting that
word
is
desirable,
press
and hold
ALPHA,
then
press
FIELD/
WORD
BKSP;
the
skipped
or duplicated
columns
are
passed
over
and
the
machine
returns to the
start
of the
last
word.
Note:
Any
backspace
operation
(character,
field,
word,
or
record)
does not change
the
operating
program
level.
VER
RES
Verify
Mode
Only:
Pressing
VER
RES
resets a verify error
condition
and
allows
a
second
verify
attempt.
If
a
verify
error
is
signaled again,
reset
is
performed,
and
the third
keystroke
rewrites storage
with
the
new
character.
After
the
rewrite,
perform
a character
backspace
and
reverify;
otherwise,
the
machine
locks
at
the
end of
the
field
(column
indicator
shows
88);
now
the
procedure
requires
field
backspace
and
reverification.
(Character backspace
may
be
used
to interrupt the error routine
and
to
allow
additional verify
attempts before
rewrite.)
VER CORR
Verify
Mode
Only:
Pressing
VER CORR
in
any
field
allows
a rewrite
of
the
balance of the
field;
pressing
this
key
after
a
record
backspace
operation
allows
rewrite
of
the
complete
record.
The
keyboard
then
locks
(column
indicator
shows
88) and
the
field
or record
must be
reverified.
If at
the
completion
of
the record verify
operation
any
rewrite
correction has
been
made
using the
VER
RES
procedure
or
VER CORR
procedure, the
machine
locks,
with
the
column
indicator
showing CC.
Note
that
CC
indicates
a
correction card
should
be punched. Manually
insert
a
blank
card
in
the
punch
station
and
press
VER
CORR
to
punch
out
the corrected card.
Controls
and
Indicators
17
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