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EN The PCL Print Model 5-11
Assuming three bits per pixel, the following diagram shows the
process.
Figure 5-4 Logical Operations and the Print Model
Note The Logical Operation command (?*l#O) provides 255 possible
logical operations. All of these logic operations map directly to their
ROP3 (raster operation) counterparts (see the Microsoft Document,
Reference, Volume 2, Chapter 11, Binary and Ternary Raster
Operation Codes).
The logical operations were defined for Microsoft Windows for an
RGB color space. In RGB space, a “1”' is white and a “0” is black.