HP 2200d HP PCL/PJL reference - PCL 5 Comparison Guide - Page 66
Table of Logical Operations, x = EXCLUSIVE OR
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Note Table of Logical Operations Table 2-6, Logical Operations (ROP3), shows the mapping between input values and their logical operations. Note that the logical operations are specified as RPN (reverse polish notation) equations. Here is a key to describe what the Boolean Function values mean; S = Source T = Texture D = Destination a = AND o = OR n = NOT x = EXCLUSIVE OR Since logical operations are interpreted in RGB space (white = 1 and black = 0) rather than in CMY space (white = 0 and black = 1), the results may not be intuitive. For example, ORing a white object with a black object in RGB space yields a white object. This is the same as ANDing the two objects in CMY space. It must be remembered that the printer operates in something similar to a CMY space and inverts the bits and reverses the order. 2-18 Printer-Specific Differences ENWW