HP StudioJet - Manual (Page 61)

A
Acceleration – The rate that a printer changes the
velocity of the carriage or the paper. Acceleration is
measured in units of g (1 g = 32.2 ft/s2).
Arc – A segment of a circle, also called a curve.
Axis – A geometric guideline used to place a coordinate.
B
Bottom Cover – Metal housing that protects the
underside of the printer.
C
Control Panel – See Keypad.
Coordinate – A point that is referenced by its position
on the X- or Y-axes of a printer. Vector or arc seg-
ments connect coordinates to create printing paths.
Carriage – The component that holds the ink
cartridge(s). It travels along the Y-axis on the traverse.
D
Dancer Bar – Rod that holds the feed loop and take-
up loop taut during printing.
DM/PL – Digital Microprocessor/Plotting Lan-
guage. An instruction set used to send vector
information to a machine that can represent the data
as an image. DM/PL is used in software drivers for
some design programs.
DPI – Dots Per Inch. Refers to the dot density or
print resolution on paper.
Drive Shaft – The motor driven shaft that moves ma-
terial through a friction feed printer. The printer drive
shaft has a rough surface that grips the material.
Glossary
F
Feed Loop – Slack material between the feed roll
and the printer.
Feed Shaft – Metal rod that holds the paper roll
parallel to the printer and allows it to turn during
feeding.
File Name Extensions – In DOS and Windows
based programs, the three letters after the period in
a file name. With graphics files the three letters de-
note a file type such as the vector and bit map based
Encapsulated Postscript (EPS) and the vector based
Hewlett-Packard Graphics Language (PLT).
Font – Refers to the style and width of letters, num-
bers, and symbols. Examples are Helvetica Bold or
Times Roman.
Frame – Segment of a plot established by the design
software. Frames can be any size up to 21600-in (X
axis) by 72-in (Y axis). Markers are generally plotted
as a series of frames.
Frame Size – The X axis length of each part of the
plot as established by the design software. Frame
size is also called tile size, page size, etc.
Friction Feed – Process where the material is fed
through a printer by placing it between a motor-
driven drive shaft and tensioned pinchwheels.
G
Green Light Mode – See START Mode.
H
HPGL – Hewlett-Packard Graphics Language.
Instruction set used to send vector information to a
machine that can represent data as an image. HPGL
7475 is the most common plot language used for com-
munication between a printer and design software.