HP Pcl 5 Manual

ENTemporary / Permanent Macros 12-5 The overlay environment consists of the current settings for the 
following features with the remainder of the environmental features 
set to their user default values: 
Refer to Chapter 3 for descriptions of environments.
NoteThe current active position (CAP, or cursor position) is not part of 
the modified print environment. Therefore, the cursor position is not 
saved when a macro is called, nor is it restored upon completion. The 
Push/Pop Cursor Position command...

12-6   MacrosEN
Deleting Macros 
There are several mechanisms provided by PCL macro control 
for explicit deletion of macros from user memory. These include 
commands to delete all macros, all temporary macros, or an 
individual macro by reference to its macro ID number, using the 
Macro Control command described later in this chapter.
Both temporary and permanent macros are deleted from memory 
whenever the printer’s power is turned off.
Macro ID 
The Macro ID command specifies an ID number for use in...

ENMacro Control 12-7
Macro Control 
The macro control command provides mechanisms for definition, 
invocation, and deletion of macros.
E
C & f # X 
NotesA macro may call or execute another macro, which in turn may call or 
execute another macro; two levels of “nesting” are allowed.
Other than call and execute, no macro control operations may occur 
within a macro.
A printer reset command (
E
CE or UEL) is not allowed in a macro.
HP-GL/2 commands are not supported within macros on all 
HP LaserJet...

12-8   MacrosEN
ROM-Based Macros 
Macros can be supplied in ROM (read only memory), such as custom 
macro cartridges or on SIMM modules. The following considerations 
apply to all ROM-based macros.
zROM-based macros include the macro ID numbers for their 
macros. These numbers cannot be changed. It is possible for 
a downloaded macro to be assigned the same ID number as 
a ROM macro. If this occurs, the downloaded macro has 
precedence. To access the ROM macro, the downloaded 
macro must be deleted.
zThe...

ENMacro Control Example 12-9 To enable the macro with an ID of 7 for automatic overlay, send:
E
C&f7y4X
To delete the macro with an ID of 7, send:
E
C&f7y8X
Macro Control Example 
The following illustrates the definition of a letterhead macro.
Table 12-4
E
C&f1YSpecify the Macro ID as one.
E
C&f0X Start Macro Definition.
E
C&a540h360V Position logo at (540, 360) 
decipoints in the PCL coordinate 
system.
E
C*t150R Set graphics resolution to
150 dots-per-inch.
E
C*r1A Start raster image of logo.
E
C*b60W...

12-10   MacrosEN
This macro now can be executed, called, or enabled for automatic 
overlay. Fred, Texas 83707  Text
E
C&a540h960V Position first rule at (540, 960) 
decipoints
.
E
C*c10v4680H Set rule height and width.
E
C*c0P Print the first rule.
E
C&a540h980V Position second rule at (540, 980) 
decipoint
s.
E
C*c&zero;P Print second rule.
E
C&a54&zero;h12&zero;&
zero;V Position for first line of text at (540, 
1200) decipoints.
E
C&f1X Stop Macro Definition. Table 12-4  (continued) 

ENIntroduction  13-1
13
The PCL Print Model
Introduction 
The Print Model feature allows images and characters to be 
filled with any of the printer’s predefined shading or cross-hatch 
patterns, or with a user-defined pattern. Images include any 
raster graphic, such as one created with PCL raster graphics 
commands (as described in Chapter 15, Raster Graphics); a 
rectangular fill area (as described in Chapter 14, PCL 
Rectangular Area Fill Graphics); or a character or characters 
selected from any...

13-2   The PCL Print ModelEN
Pattern
The design which is “painted” through the black (“1” bits) area of 
the source image onto the destination image. For patterns, the Print 
Model uses one of the printer’s internal predefined eight shading 
patterns (see Figure 13-4) or one of the six cross-hatch patterns 
(see Figure 13-5), or a user-defined pattern.
NotesWhen printing a page, text and raster images are printed using the 
current pattern. The default current pattern is 100% black. The print 
model...

ENIntroduction 13-3
Pattern Transparency Mode
The transparency or opaqueness of the white pixels in the pattern. 
When set to 0 (transparent), these pixels have no effect on the 
destination; when set to 1 (opaque), they are applied through the 
black pixels of the source pattern to the destination.
Figure 13-2 Opaque and Transparency Modes
Figure 13-3 illustrates the effects of the source and pattern 
transparency modes on the final image.
In the first example (1a), the transparency mode for both the...

13-4   The PCL Print ModelEN
Figure 13-3 Effect of Transparency Modes on Images