HP LaserJet IIIP Printer

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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.

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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).

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2-4 Printer-Specific Differences

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