HP Pcl 5 Manual

ENCommand Sequence 13-5
Command Sequence 
The following illustration shows the Print Model Command Sequence 
for selecting a current pattern and using it to fill a destination image.
Table 13-1
Operation  Comments


Download Page Data  Prior raster and character data  
downloaded to the page is  
considered destination image.


Select Transparency Modes E
C*v#N and/or E
C*v#O
Select Specific Pattern ID  Pattern ID E
C*c#G
and
Select Pattern 
E
C*v#T (redefines current 
pattern)
Download Page Data...

13-6   The PCL Print ModelEN
Source Transparency Mode Command 
The Select Source Transparency Mode command sets the source 
image’s transparency mode to transparent or opaque.
E
C * v # N
#  =0 - Transparent
1 - Opaque 
Default =0
Range =0, 1 (other values cause the command to be ignored)
With a transparency mode of “0” (transparent), the white regions 
of the source image are not be copied onto the destination. With a 
transparency mode of “1” (opaque), the white pixels in the source 
are applied...

ENPattern Transparency Mode Command 13-7
Pattern Transparency Mode Command  
The Pattern Transparency Mode command sets the pattern’s 
transparency mode to transparent or opaque.
E
C * v # O
#  =0 - Transparent
1 - Opaque 
Default =0
Range =0, 1 (other values cause the command to be ignored)
A transparency mode of “0” (transparent) means that the white 
regions of the pattern image are not copied onto the destination. 
A transparency mode of “1” (opaque) means that the white pixels 
in the pattern are...

13-8   The PCL Print ModelEN
Pattern ID (Area Fill ID) Command 
The Pattern ID command (formerly called Area Fill ID) identifies the 
specific shading, cross-hatch, or user-defined pattern. (This 
command is also used for rectangular area fill. Refer to Chapter 14, 
PCL Rectangular Area Fill Graphics.)
E
C * c # G
#  =ID number of user-defined pattern
Default =0 (no pattern)
Range =0 - 32767 (values outside the range are ignored)  
For rectangular areas, the pattern material is determined by both the...

ENPattern ID (Area Fill ID) Command 13-9
NotesThis command is used for both the Select Pattern and Area Fill 
graphics (it is also described in Chapter 14, PCL Rectangular 
Area Fill Graphics). It is duplicated here for convenience. 
For user-defined patterns, this command, sent prior to downloading 
a user-defined pattern, assigns an ID pattern number to the 
downloaded pattern. (For more information, see “User- Defined 
Graphics,” later in this chapter.) 

13-10   The PCL Print ModelEN
Figure 13-4 Shading Patterns  

ENPattern ID (Area Fill ID) Command 13-11 Figure 13-5 Cross-Hatch Patterns    

13-12   The PCL Print ModelEN
Select Current Pattern Command 
The Select Current Pattern command identifies the type of pattern to 
be applied onto the destination.
E
C * v # T 
#  =0 - Solid black (default)
1 - Solid white
2 - Shading pattern
3 - Cross-hatch pattern
4 - User-defined pattern 
Default =0
Range =0 - 4 (values outside of range are ignored)
This command selects which type of pattern is applied. For values 2, 
3, and 4, the shading level (Figure 13-4), cross-hatch pattern (Figure 
13-5), or...

ENUser-Defined Pattern Graphics 13-13
User-Defined Pattern Graphics
In addition to the eight shading patterns and six cross-hatch patterns, 
users can design their own patterns (area fill). These user-defined 
patterns are downloaded to the printer and controlled using three 
new commands:   
zUser-Defined Pattern  E
C*c#W [data] 
zSet Pattern Reference Point  E
C*p#R 
zPattern Control  E
C*p#Q   >
User-Defined Pattern Implementation
To create a user pattern, a user defines a binary raster data image 
as...

13-14   The PCL Print ModelEN
Figure 13-7 Pattern Layout Across the Printable Area
Pattern Reference Point   
The pattern reference point is a position on the logical page at which 
the base pattern is positioned for tiling. The upper left corner of the 
base pattern is positioned at this point (see ). The default pattern 
reference point is position 0,0. However, it is possible to set the 
pattern reference point to the current cursor position. This allows 
the pattern to be positioned or adjusted for...