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

Glossary-2 EN
Centronics I/O
An industry standard parallel input/output (I/O) interface. (Also see
Parallel I/O.)
Character Descriptor
The character descriptor is a block of data that identifies the
characteristics for a specific character, such as its position, and
the cursor position after printing. The character data which follows,
defines the shape of the character. Chapter 11 describes the
character definition and descriptor formats for PCL bitmap fonts,
as well as Intellifont and TrueType scalable fonts.
Column
The width of a column is defined by the current Horizontal Motion
Index (HMI).
Compression (raster graphics)
Raster graphics compression methods reduce the amount of code
needed to generate a raster graphic image and improve the efficiency
with which the image is printed. The Set Compression Method
command allows you to code raster data in one of four compressed
formats: Run-length encoding, tagged imaged file format (TIFF) rev.
4.0, delta row compression, and adaptive compression. These
techniques are described in detail under “Set Compression Method
Command” in Chapter 15.
Configuration
Configuration is the process of changing certain printer settings
to allow a computer to communicate properly with the printer. For
example, interface selection is part of printer configuration. The
printer is configured using the control panel configuration menu.
Configuration Menu
Identifies printer features which are set from the printer’s Operator
Control Panel. Configuration menu selections include such features
as Auto-Continue, I/O configuration, and Resolution Enhancement
setting. The configuration menu includes features which are not part
of the print environment (features which can not be selected with
printer commands).