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Using Color ModesUsing Color Modes
Introduction The PCL printer language has four color modes:
Black-and-White
Simple Color
PCL Imaging
HP-GL/2 Imaging
PCL allows you to use any mode or combination of modes to
accomplish your printing objectives most efficiently.
All four of the color modes create a palette. The palette for
each mode is discussed in the section describing that mode,
and also in Chapter 3 (“Using Palettes”).
Black-and-White
Mode (Default)
Black-and-White Mode is the default color mode. PCL
devices power up in this mode and revert back to it
whenever the printer receives an ?E reset.
Black-and-White mode is also selectable using the Simple
Color command (?*r1U). This mode creates an
unmodifiable, default 2-pen palette, with white at index 0
and black at index 1 (compatible with existing monochrome
PCL 5 printers).
Simple Color Mode Simple Color Mode, entered by the Simple Color command
(?*r#U), creates a fixed-size, fixed-color, unmodifiable
palette. Depending on the value field, ?*r#U can create a
2-pen Black-and-White palette, an 8-pen RGB palette, or an
8-pen CMY palette. When using the Simple Color mode, the
pixel encoding mode is always indexed planar.