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

Glossary-8 EN
MSL (Master Symbol List)
This is a group of symbols (a symbol index). An unbound font
has the capacity to be bound to a set of symbols selected from a
complementary symbol index (such as the MSL or Unicode symbol
indexes). Each symbol in the index is identified by a unique MSL
number. Appendix D of the PCL 5 Comparison Guide contains the
MSL symbol index.
Negative angle of rotation
An angle used to create a plot in HP-GL/2 which is rotated in the
direction of the +X-axis to the –Y-axis. Note that the relationship of
the +X-axis to the –Y-axis can change as a result of scaling point or
scaling factor changes, thus changing the direction of a negative
angle of rotation. See “Drawing Arcs” in Chapter 20 for more
information.
Non-volatile RAM
Random Access Memory whose contents are preserved following
a power failure (volatile RAM is memory whose contents are not
preserved when the device is powered off). Non-volatile RAM is
generally used to preserve configured (vs. programmed) device
state information.
Off-line/On-line
On-line is a condition when the printer will accept data from the host
computer. When the printer is on-line, the ON LINE lamp is lit. When
off-line, the printer will not accept data from the host.
Orientation
The orientation of characters on a page; if the print is across the width
of the page, it is “portrait-oriented;” if the print is across the length of
the page, it is “landscape-oriented.”
Overlay Environment
The overlay environment consists of the current settings for the
following features with the remainder of the environment features
set to their user default values: Paper source, Page size, Number
of copies, Orientation, Cursor position stack.