HP PCL/PJL reference (PCL 5 Printer Language) - Technical Quick Reference Guide

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Print Model
Source Transparency Mode
Sets the source image's transparency mode to transparent or opaque.
? * v # N
# = 0 - Transparent (default)
1 - Opaque
Pattern Transparency Mode
Sets the pattern's transparency mode to transparent or opaque.
? * v # O
# = 0 - Transparent (default)
1 - Opaque
Pattern (Area Fill) ID
Specifies the level of shading, type of cross-hatch, or user-defined pattern
to select via Select Pattern command. See the following page for command
description.
Select Current Pattern
Identifies the type of pattern to be applied to the source.
? * v # T
# = 0 - Solid Black (default)
1 - Solid White
2 - Shading Pattern
3 - Cross-Hatch Pattern
4 - User-Defined Pattern
Logical Operation
Specifies the logical operation (ROP3) to be performed.
? * l # O
# = 0 - 255 (for specific operations refer to the PCL 5
Comparison Guide
for the logical operation values)
Pixel Placement
Determines how pixels are rendered in images.
? * l # R
# = 0 - Grid intersection (default)
1 - Grid centered
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