Printronix P7000 H-Series, Programmer'S Reference Manual

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SFCC Special Function Control Character. The first
character in a printer command sequence. In
Proprinter III XL emulation mode, you can select one
of five characters as the SFCC. In Epson emulation
mode, the SFCC must always be the ASCII escape
character (ESC).
See also command sequence and
escape sequence.
shadow printing A typeface with a heavy line thickness produced by
doublestriking. The printer forms a character, then
prints it again, but fractionally offset from the first
position.
See also
bold, character weight.
shuttle The subassembly in a line matrix printer that includes
the hammer bank assembly and some or all of the
drive mechanism.
sixel A vertical column consisting of six pixels and treated
as a unit in graphics applications.
size, type See point.
SLD Set Line Density
slewing Rapid vertical paper movement.
SNA Systems Network Architecture. A hardware and
software protocol used on IBM mainframe networks.
soft reset See warm start.
SOH Start Of Header
spacing See font, proportional and font, monospaced.
SSCC SuperSet Control Code. It is of the form SFCC | } ;
and is used to execute superset commands.
start bit The signal that indicates the start of a character or
element in a serial data stream.
stop bit The signal that indicates the end of a character or
element in a serial data stream.
string Two or more bytes of data or code treated as a unit.
style, type See type style.
superset commands Commands which are an extension to the base
Line printer protocol, such as the bar code
commands for the Epson FX protocol.
See also
SSCC.
symbol set See character set.
T
TCB Task Control Block