HP LaserJet IIIP Printer
Several new PCL features were added to the PCL 5 language with the
release of the HP LaserJet IIIP printer. These new features are
summarized in Table 2-2. One new feature listed here is adaptive
compression (method 5) for the Raster Compression Mode
command. In addition to compressing data for transmission, if certain
rules are followed (discussed below), the HP LaserJet IIIP printer will
store adaptive compressed data in compressed format and only
decompress it when required for printing. There are certain
requirements which must be met for this data to be stored in
compressed format. These requirements are discussed following
Table 2-2.
Feature
Status
Comments
Number of Copies
Modified
Greater range, 1 to 32,767.
Page Size
Modified
C5 Envelopes not supported.
Output Bin Selection
Command
New
Allows programmatic selection of
upper or lower output paper bins.
End Raster Graphics
Command
New/Modified
Modified version of the existing End
Raster Graphics command.
Job Separation
New Command
Causes the paper stacker to shift
positions to offset the output paper
stack.
Fonts
New Additions
Four variations of Univers
Condensed; ITC Zapf Dingbats in
five symbol sets.
ENWW
Printer-Specific Differences 2-3
Table 2-2. HP LaserJet IIIP PCL Feature Additions
Feature/Command
Status
Comments
Set Compression Method
Modified
Adds Adaptive Compression method to the
Set Compression Method command.
End Raster Graphics
Command
Modified
Modified version of the End Raster
Graphics command.
User-defined Patterns
New
Enables users to define and download
their own user-defined pattern.
User-defined Pattern
Command
New
Feature
Used to download the binary data for
user-defined pattern.
Set Pattern Reference Point
Command
New
Sets pattern reference point.
Pattern Control Command
New
Used to make user-defined patterns
permanent or temporary, or to delete them.
Select Pattern & Fill
Rectangular Area
Commands
Modified
Adds a parameter to support user-defined
patterns.
Pattern ID Command
Modified
In addition to selecting internal patterns,
this command is now used to assign an ID
to a user-defined pattern as well as to
select patterns. Also, parameter range is
extended from 100 to 32,767.
User-defined Symbol Sets
New
Feature
Enables user to build a symbol set which
contains user-selected characters.
Define Symbol Set
Command
New
Identifies the characters for a user-defined
symbol set.
Symbol Set ID Code
Command
New
Assigns a number for identification to the
user-defined symbol set.
Symbol Set Control
Command
New
Used to make user-defined symbol sets
permanent or temporary, or to delete them.
Unbound Scalable Fonts
New
Feature
Allows typefaces (unbound fonts), not just
fonts (bound fonts) to be downloaded to
the printer.
Unbound Scalable Font
Descriptor
New
Addition of a new header used for unbound
fonts (font type 10).
2-4 Printer-Specific Differences
ENWW