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Device Control
From the keyboard, you copy a "page" of data using the
"COpy PAGE"
key
(m)
in the
"device cant rol"
set ofsys-
tem function keys.
From a program executing in a host computer, you copy a
"page" of data using the following escape sequence:
<ESC>&pF
or
<ESC> &pOF
Copy All
When either or both ofthe printers is selected as a destina-
tion ("to") device, you can copy all lines from the one
containing the cursor through the end of display memory to
the printer(s). Block terminators and non-displaying ter-
minators are ignored. After each line is printed, the cursor
moves to the leftmost column in the next lower line
(column 0, NOT the left margin).
From the keyboard, you copy "all" using the
"COPY ALL"
( a )
key in the
"devi ce cant rol"
set of system
function keys.
From a program executing in a host computer, you copy
"all" using the following escape sequence:
<ESC>&pM
or
<ESC>&pOM
Copy All of Display Memory
When either or both of the printers is selected as a destina-
tion ("to") device, you can copy all of display memory to the
selected printer(s) by issuing an <
E SO
0 sequence. In
response to this sequence, the terminal homes the cursor
and then copies the entire content of display memory to the
printer(s).
During the data transfer, block terminators and non-
displaying terminators within display memory are
ignored.
The
<ESC>
0 sequence may be entered through the keyboard,
issued from a user-defined function key, or issued from a
program executing in a host computer.
When the terminal is in local mode, pressing the •
key
performs this same function.
Copy Menu
When either or both ofthe printers is selected as a destina-
tion ("to") device and a configuration menu is currently
being displayed on the screen, you can copy the menu to the
selected printer(s) by issuing an
< ESC>
0 sequence. This
sequence may be entered through the keyboard, issued
from a user-defined function key, or issued from a program
executing in a host computer.
Skip Line
When either or both of the printers is selected as a destina-
tion ("to") device, pressing the
"ADVANCE LINE"
key
(II1II)
in
6-2
the
"devi ce cant rol"
set of system function keys sends
an ASCII
<CR><LF>
control code sequence to the printer(s), (._
thus causing the paper to be advanced by one line.
_
Programmatically you can cause a line feed on either of the
printers by using the following device control escape se-
quences:
INTEGRAL PRINTER:
<ESC>&p1 c6u 1 P
EXTERNAL PRINTER:
<ESC>&p1 c4u 1 P
The "p" parameter in the above escape sequences specifies
how many line feeds you wish performed. To initiate three
successive line feeds, for example, merely substitute
"3P"
for
"1 P"
in the sequence.
Note that the parameter
"4u"
may be redefined by way of
the
Pri nterCode4
configuration parameter to signify the
integral printer (see the description of the Terminal
Configuration menu in section II of this manual).
Skip Page
When either or both of the printers is selected as a destina-
tion ("to") device, pressing the
"ADVANCEPAGE"
key ( . . ) in
the
"device control"
set of system function keys sends
an ASCII
<FF>
control code to the printer(s), thus causing
the paper to be advanced to the top of of the next page.
When the integral printer is selected as a "to" device, this
control function causes a true form feed only if report· (
format or metric format is enabled. In all other cases, the
_
"advance page" function merely causes the integral printer
to advance the paper one line.
Programmatically you can cause a form feed on either of
the printers by using the following device control escape
sequences:
INTEGRAL PRINTER:
<ESC>&pOc6U
EXTERNAL PRINTER:
<ESC>&pOc4U
Note that the values
2-1
0 may also be used with the "c"
parameter (instead of the zero) and they will also initiate
one form feed.
Also note that the parameter
"4U"
may be redefined by way
of the
Pr i nterCode4
configuration parameter to signify
the integral printer (see the description of the Terminal
Configuration menu in section II of this manual).
Device Control Completion Codes
After issuing a copy line, copy page, copy all, skip line, or
skip page
<ESC>&p
sequence, the remote program deter-
mines whether or not the operation was successfully per-
formed by executing an
I NPUT
or similar instruction that
requests one ASCII character from the terminal. The ter-
minal responds by sending an "5", "F", or "U". An "5" ind-
icates successful completion, an
"F"
indicates that the
operation failed, and a "U" indicates that the terminal
operator interrupted the data transfer by pressing _ .
Note that these completion codes cannot be suppressed by
c
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