Printronix ANSI Printer manual Pal, Pcba, Pgl, Pmpp

Appendix C

	P
PA	Program Attention. Used in applications programs.
PAL	Programmable Array Logic
parity (check)	Parity checking is the addition of non-data bits to
	data, resulting in the number of 1 bits being either
	always even or always odd. Parity is used to detect
	transmission errors. Parity represents the value in
	the check digit of the received or transmitted data.
parsing	Parsing is the process of separating a programming
	statement into basic units that can be translated into
	machine instructions. A printer can recover from an
	erroneous code sequence by performing as much of
	the function as possible or, parsing the valid
	parameter from the invalid.
PC	Personal Computer.
PCB	Printed Circuit Board. A PCB is an insulating board
	on which circuit paths have been printed or etched.
PCBA	Printed Circuit Board Assembly. A PCBA is a PCB
	that has all of the electrical and mechanical
	components (resistors, capacitors, ICs, sockets, etc.)
	mounted on it.
PGL	Printronix Graphics Language. 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.
PI	Paper Instruction: A signal from the host with the
	same timing and polarity as the data lines.
pica	A name indicating a monospaced font with a pitch of
	10 cpi and usually a 12 point height. Pica is used in
	typography as a unit of measurement equal to 1/6
	inch.
pin configuration	Establishes the physical attachment and protocol
	conversion connections for the host interface.
pitch	The number of text characters printed per horizontal
	inch. Specified in characters per inch (cpi).
pixel	Derived from picture (PIX) ELement. The smallest
	displayable picture element on a video monitor or
	printable unit. In printing, a pixel is a dot.
PMPP	Physical Maximum Print Position. The longest line
	the printer is capable of printing. This differs from
	MPP in that the printer may be capable of printing
	lines 132 characters wide (PMPP), but the print job is
	only 80 characters wide (MPP). (See also MPP.)

94