HP PCL/PJL reference (PCL 5 Printer Language) - Technical Reference Manual Part II

EN Glossary-15
Unit of Measure
The number of units-per-inch used in PCL cursor moves is deter-
mined by the current setting of the Unit of Measure command. The
current unit of measure setting affects all PCL Unit moves, horizontal
and vertical rectangle size, bitmap and scalable font metrics (how the
cursor moves after printing a character). See “Unit of Measure
Command” in Chapter 4.
User Default
A default selectable through the printer’s control panel. For example,
user defaults may be selected for number of copies, manual feed
mode, fonts, and vertical form length (VMI).
User Default Environment
The User Default Environment consists of the user default settings
(any user default settings selected from the control panel) with the
remainder of the environment features set to the factory default
values.
User-Defined Pattern
In addition to the eight shading patterns and six cross-hatch patterns,
users can design their own patterns (area fill). These user-defined
patterns are downloaded to the printer and used in subsequent area
fills. See “User-Defined Pattern Graphics” in Chapter 13.
User-Defined Symbol Sets
User-defined symbol sets are supported in some HP LaserJet
printers. Symbols are user-selected from a Symbol Index, (such
as Unicode or MSL). To specify a user-defined symbol set, use
the symbol set ID value as defined by the Symbol Set ID Code
Command. See Chapter 10 for more information.
Vector Graphics
A method of drawing lines, area fills and other objects which is
generally more efficient than “raster graphics.“ Also see “HP-GL/2.”