HP 5961-0509 manual Pattern, Source Image, Destination Image, Source Transparency Mode

	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.
Notes	When printing a page, text and raster images are printed using the
	current pattern. The default current pattern is 100% black. The print
	model allows the current pattern to be changed to white, to one of
	the six predefined cross-hatch patterns, to one of the eight shading
	patterns, or to a user-defined pattern. Once the current pattern is
	changed, it stays in effect until another is selected or the printer is
	reset. A reset returns the current pattern to its default value (100%
	black).
	The current pattern does not always apply to rectangular area fill,
	which uses patterns defined by the rectangular area fill pattern
	commands. Refer to “Transparency Mode and Rectangular Area
	Fills” at the end of this chapter for additional information.
	Source Image
	An image in which the black (“1” bits) are replaced by the specified
	pattern. This is like a stencil through which the pattern is applied to
	the destination image. The source image may be defined as a
	rectangular fill area, a raster graphics image, or characters.
	Destination Image
	The image onto which the source image/pattern combination is
	placed. The destination image is the result of any previous
	operations.
	Source Transparency Mode
	The transparency or opaqueness of the source image’s white pixels
	(the “0” bits) as they are applied to the destination image. Setting the
	source transparency mode to 1 (opaque) applies the source image’s
	white pixels to the destination image; with a setting of 0 (transparent),
	these pixels have no effect on the destination.

13-2The PCL Print Model EN