I
Parallel Printer Control
The
parallelportis a one-way port. Datagoesonly
fromtheterminal to the device, not from thedevice
to the terminal. This section describes how to send
data from the terminal to a paral1el printer con-
nected to the parallel port.
The
terminal comes
from the factory with the parallel printer port en-
abled. Make sure the PARALLEL option is se-
lected for the PRINTER item in the general set up
menu.
The terminal offers two methods
of
communicat-
ing with a printer connected to the parallel port:
• Enabling a parallel printer mode, which
passes data
through
the
terminal from
the
computer or keyboard to a device (e.g.,
a printer) connected to
the
parallel port.
Depending
on
the
print mode, the data may
or
may
not appear on the terminal screen.
• Executing a page print, which sends on-
screen data
to
the printer (much like the Prt
Sc key function of a personal computer).
If
you have any problems with printing, see the
troubleshooting suggestions in Chapter 4.
Parallel Printer Modes
Two parallel printermodes canbe enabled by your
program
orin
setup.
Using the local keycommand
(for your keyboard) to toggle the copy
mode
has
two effects
on
print modes: It first changes the
current print mode to copy mode, andthen toggles
copy mode
on
and off.
Copy
Sometimes called "typewriter"
or
"type-
through" mode. Characters from the keyboard
or
host are simultaneously displayed
on
the screen
and sent to the printer.
Transparent
Characters from the host
or
key-
board are sent to the printer port without affecting
the display. The display freezes during transmis-
sion.
Page Print
A page print command sends data
on
the current
page (up to the cursorposition) to the parallel port.
The terminal does not automatically flip the next
page
of
display memoIY onto the screen.
To
send
another page, use the apppropriate key (for your
keyboard) to call up a different page, then use the
local key command (for
your
keyboard) to toggle
the copy mode.
Fora formatted page
print, use the appropriate key
(foryourkeyboard) to printthe screen
(Print, Print
Screen,
or
F2). Each line sent to the printer ends
with a carriage return and line feed, so the printed
copy resembles the screen.
For an unformatted page
print, press the Shiftkey
and the above print-screen key. Without format-
ting, the appearance
of
the printed output varies,
depending on the amount
of
space characters the
data contains.
OPERATION 3-14
USER'S GUIDE
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