User guide

Glossary-5 C4705-90000
PJL Printer Job Language, developed by
Hewlett-Packard to give software applications
more job-level device control and to provide
device status information to the application.
platen roller Drive roller.
plot quality Print quality.
PML Printer Management Language.
P/N Part Number.
power cycle The switching of the plotter off
and then on again.
primary colors cyan, magenta, yellow, black.
print quality Plot quality
Product Line 30 Hewlett-Packard’s product
line of large-format, pen and thermal-inkjet
plotters.
PWM Pulse-Width Modulation.
RAM Random-Access Memory.
raster 1. A matrix of dots, or pixels, where
each pixel is defined by a bit. A bit that is “on”
will print a dot on the paper. A bit that is “off”
will leave the area blank.
2. A method for defining a plot directly in terms
of the pixels rather than as vectors.
raster image processor Software that converts
graphics data to pixel format.
relative humidity The ratio of the amount of
water vapor actually present in the air to the
greatest amount possible at the same temperature,
(from Webster’s Ninth New Collegiate Dictionary,
 Merriam-Webster 1991).
resolution A measure of image sharpness
expressed as a number of lines per unit length.
When referring to plotters, addressable resolution
means the smallest move the plotter can make
programmatically.
rms Root mean square.
ROM Read-Only Memory.
roman A character set based on the Latin
alphabet.
RS-232-C interface A serial interface
standardized by the Electronic Industries
Association Standard RS-232-C.
RTL see “HP-RTL.”
SFIBIS An ASIC
SCondor
An ASIC
sec Second(s).
secondary colors Red, blue, green.
service monitor Data display; display data;
monitor mode.
SIMM Single In-line Memory Module.
skew Misalignment.
special paper A paper specifically developed
by HP, for HP inkjet plotters.
SPROC Servo-Processor Code.