HP PCL/PJL reference (PCL 5 Color) - Technical Reference Manual

5-6 The PCL Print Model EN
Command Sequence
The table below shows the Print Model command sequence for
selecting a current pattern and using it to fill a destination image. The
commands for specifying transparency modes, logical operations,
and patterns are discussed beginning on the following page.
Foreground color is described in Chapter 3.
Operation Comments
Download Page Data Prior raster and character data
downloaded to the page is considered
destination image.
Select Transparency Modes
?*v#N (source) and/or ?*v#O (pattern)
Specify the Logical Operation If a logical operation other than the default
(TSo-252) is desired, specify the
operation with the
?*l#O command.
Select Specific Pattern ID Pattern ID
?*c#G
Download User-Defined Pattern If using a user-defined pattern, it must be
downloaded to the printer before using it.
Select Pattern
?*v4T (selects downloaded pattern)
Specify the Foreground Color For color printers, specify a Foreground
Color (
?*v#S) if desired. (This step is
unnecessary if a color pattern is used.)
Download Source Image Data Raster image/characters
Return to regular print mode Default current pattern and transparency
modes:
?*v0T (100% black pattern
selected) and
?*v0N ?*v0O
(transparency modes selected).
Download remaining page data Transfer data for regular printing, or the
above process may be repeated to
produce another print model effect.
End of Page Data