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DSC DATA STREAMS
General Information
The DSC (Data Stream Compatibility) character set is found in non-SNA
environments. It has a limited number of control characters, which are
explained below.
Carriage Return (CR) 05h
This command moves the presentation position to the left margin.
End of Message (EM) 01h
The End of Message command terminates printing, and it may also send a
new line to the printer, depending upon the setting of Option # 51 DSC
EM Generates CR/LF in Infinite Line Length and Option #57 DSC NL
at EM Even if in Column 1, and upon whether or not the current print
position is column 1. Here is a table listing all of the possible results:
OPTION 51 OPTION 57 COLUMN RESULT
N N 1 No new line
N N >1 Send new line
N Y 1 Send new line
N Y >1 Send new line
Y N 1 No new line
Y N >1 Send new line
Y Y 1 Send new line
Y Y >1 Send new line
Form Feed (FF) 02h
The Form Feed command moves the presentation position to the top and
left margins of the next page.
New Line (NL) 03h
The New Line command moves the presentation position to the next line
and left margin of the page. If the line count exceeds the bottom margin, the
ULTRA will send an FF to the printer, and the print position will be the left
and top margins of the next page.
SECTION 15