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Printer SCS Formatting Control Characters
Formatting information is within the data stream as SCS
control characters. The characters are shown in the
following table.
Bytes
3
3
3
3
Hexadecimal
Code
00
15
1E
25
OC
00
2F
34C4AV
34COAH
34C8RH
344CRV
SCS Control
Characters
CR-Carrier return
NL-New line
IRS-Interchange record separator
LF-Line feed
FF-Forms feed
NUL-Null character
BEL-Bell
PPAV-Print position, absolute vertical
34 = Print position
C4 = Absolute vertical
AV= Hexadecimal value of the vertical position
PPAH-Print position, absolute horizontal
34 = Print position
CO = Absolute horizontal
AH= Hexadecimal value of the horizontal position
PPRH-Print position, relative horizontal
34 = Print position
C8 = Relative horizontal
RH= Hexadecimal value of movement from the
present position
PPRV-Print position, relative vertical
34 = Print position
4C = Relative vertical
RV= Hexadecimal value of movement from the
present position
Function (See the note.)
Logically moves the print position to the first
position on the same line.
Logically moves the print position to the first
position on the line and moves the form to the
next line.
Logically moves the print position to the first
position on the line and moves the form to the
next line (same as NL).
Logically moves the form to the next line. Does
not move the print head.
Moves the forms to the first line of the next page
and the print head to the first print position.
A no-operation. No character is printed and no
function is performed in the printer.
Turns the Ready light off and the Attention
light on, sounds the audible alarm, and stops
printing.
Identifies the next print line. The numeric values
must not exceed the end of the logical page. If
the numeric value is less than the current line, a
new page is started.
Identifies the next print position. The maximum
numeric value must not exceed the end of the
logical page. The maximum numeric value cannot
exceed 132. If the numeric value is less than
the current position, a new line is started.
Identifies the next print position in relation to
the present position. The numeric value must
not move the print head past the end of the
logical line.
Identifies the next print line in relation to the
present line. The numeric value must not move
the forms past the end of the logical page.
Note:
The mechanical action observed might not agree with the stated function because of the look-ahead feature that selects optimum head
movement for the best throughput.
Theory,
Features
Theory
5256 M I M
4-11
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