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HP PCL Commands
84 HP DeskJet 600, 700, 800, 900 & HP 2000 Series PCL Developer’s Guide
10.16 Color
10.16.1 Simple Color
The Simple Color (Esc * r # U) command, sometimes referred to as Set Planes Per Row,
allows color selection from a fixed palette. CMY or RGB raster data must be transferred by
plane (Esc * b # V) as well as by row (Esc * b # W). The pixel encoding mode is indexed pla-
nar.Creates a fixed-size palette whose color specification cannot be modified.
The HP DeskJet 600 printer, which is a single-pen device, maps a value parameter of -4
to 3-plane CMY, converting K data to composite black.
The absolute value of the value field indicates the number of planes per row of raster data to
be sent. The number of entries in the new palette is 2n, with index values 0 to 2
n
-1. For exam-
ple a 4-plane palette has 16 entries, with index numbers 0 to 15.
A value field of 1 creates a 2-entry black and white default HP LaserJet palette.
A value field of 3 creates an 8-entry Device RGB palette (compatible with a HP PCL Imaging
Mode palette.
A value field of -3 creates an 8-entry palette in Device CMY color space.
A value field of -4 supports 4-plane Device KCMY color. Plane 1 is the black pen, and planes
2, 3, and 4 respectively are the CMY planes.
The four Simple Color palettes are shown below.
The ordering for color data planes when the RGB palette is selected is RGB. The first
Transfer By Plane command will send Red Data to the printer, the second will send Green
Data, and the Blue Data is sent with a Transfer By Row command, which increments the
TABLE 56. Simple Color - Esc * r # U (Also known as Set Planes Per Row)
#
Value
DJ600
DJ610C
DJ660C
DJ670C
DJ680C
DJ690C
DJ695C
DJ810C
DJ830C
DJ850C
DJ870C
DJ880C
DJ890C
DJ895C
DJ970C
HP2000C
EFFECT
1
44 44 44 44 44 44 44 44 44 44 44 44 44 44 44 44
Single plane K palette
-3
44 44 44 44 44 44 44 44 44 44 44 44 44 44 44 44
3 planes, device CMY palette
3
44 44 44 44 44 44 44 44 44 44 44 44 44 44 44 44
3 planes, device RGB palette
-4
44 44 44 44 44 44 44 44 44 44 44 44 44 44 44 44
4 planes, device KCMY palette
Default
1
Range
-4, -3, 1, 3 - Command is ignored for out of range values
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