HP PCL 5 User Manual download pdf (Page 72)

5-8 The PCL Print Model EN

Pattern Transparency Mode Command

The Pattern Transparency Mode command sets the pattern's

transparency mode to transparent or opaque.

? * v # O

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 applied directly onto the destination.

Note When printing white rules, the pattern transparency is treated as if it

were “opaque”; white rules erase black rules regardless of the

transparency mode.

For RGB color images, “white” pixels are those for which all color

primaries are 255. For CMY color images, “white” pixels are those for

which all color primaries are 0.

White dots introduced in the dithering process are not subject to

transparency modes.

Refer to the preceding definitions and the discussion of Figure 5-2

and Figure 5-3 for an explanation of the effects of pattern

transparency.

# = 0 - Transparent

1 - Opaque

Default =0

Range = 0, 1 (other values cause the command to be ignored)

1 2 ... 67 68 69 70 71 72 73 74 75 76 77 ... 285 286

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HP PCL 5 User Manual Page 72