Printronix ANSI Printer manual Tof, Ttl, Upc, Uset, Vfu, Vgl

Appendix C

TD	Transmit Data. Serial data stream from the printer for
	transmitting status and control information to the
	host.
TOF	Top Of Form
TTL	Transistor-Transistor Logic.
true	On or 1. “High true” refers to a positive relative
	voltage representing the ON state; “low true” refers to
	a zero or negative relative voltage representing the
	ON state.
twinax	Twinaxial cable. An electrical signal conductor
	consisting of two wires surrounded by insulation and
	a braided shield. Used to connect computers to input
	or output devices.
type family	See typeface.
type size	See point.
type style	Refers to either the upright or italic character style in
	a specific font family. Roman is upright like this, italic
	is slanted like this.
typeface	A descriptive name or brand name that identifies a
	particular design of type. Also called type family.
typographic font	See font, proportional.
	U
UPC	Universal Product Code.
USET	User-defined Set: An IGP command that creates
	custom character sets (except OCR fonts) from
	existing characters stored in memory.
	V
VFU	Vertical Format Unit
VGL	Code V Graphics Language. An emulation of the
	QMS Code V Magnum firmware. The software
	version of the old hardware based IGP that is used in
	the Printronix PSA line of printers. It provides the
	same forms and barcode generation capabilities as
	the IGP.
VT	Vertical Tab

98