
122
TX/CX 4000
7.13.2 C
USTOM
U
SER
S
TRINGS
Host download command 55 allows
you to define up to six (0 through 5)
custom user strings. A user string
can be a font ID, a form feed, or
another printer command that is
frequently used.
Section 5.17.1
describes how to define the custom
user strings.
After the custom user string is
defined, the string is activated by
placing the delimiter (&% or the
beginning delimiter defined with
command 40), a capital letter U, and
the number of the desired custom
user string into the text of a
document.
For example, use command 55 to
define user string number 3 to send
a form feed as follows (FF = 0C in
hex):
&%Z55,3(0C)
Then, to send a form feed at the
end of a print job, enter the
following at the end of the
document:
&%U3
Print the document, and the
TX/CX 4000 will send the 0C, or
form feed, command to the printer
when it encounters the &%U3 code.
7.13.3 SCS M
ODE
T
RANSPARENT
D
ATA
SCS transparent mode (SCS TRN
code 35) provides a method for
transparent data transmission when
operating in LU1 mode. To use this
method, you must be connected to a
system using SNA protocol and be
operating as a Logical Unit Type 1.
An SCS TRN sequence begins with
a one-byte binary count immediately
following the TRN code. The count
indicates the number of bytes, not
including the count byte, of
transparent data to follow. Up to 256
bytes of transparent data can be sent
in each sequence.
SCS TRN data is user-defined and
is not scanned for SCS control
codes. However, to emulate the
characteristics of the IBM 3287, non-
printable characters (i.e., control
characters) are converted to
hyphens. Data is translated to ASCII
with undefined characters printed as
hyphens. The TX/CX 4000 offers a
configurable option to emulate the
IBM 3287 or to pass the data without
translation. Refer to command 45,
SCS TRN translate.