HP 4 FAMILY - Manual (Page 39)

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).
Table 2-2. HP LaserJet IIIP PCL Feature Additions
Printer-Specific Differences 2-3