HP 2200d HP PCL/PJL reference - PCL 5 Comparison Guide - Page 76
Merge Control Command (HP-GL/2), MC [mode, [opcode], Parameter, Format, Functional Range, Default, MC1
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Merge Control Command (HP-GL/2) The Merge Control (MC) command specifies the raster operation (ROP's) to be performed in HP-GL/2. Raster Operations specify how source, destination, and patterns are combined to produce final images. This command supports all 256 Microsoft Windows ternary (ROP3) raster-operation codes. MC [mode, [opcode] ] ; Merge Control Command (HP-GL/2) Parameter mode opcode Format clamped integer clamped integer Functional Range 0 or 1 0...2551 1 For opcode ROP values refer to Table 2-6, Logical Operation. Default 0 (ROP 252) 168, 252 mode 0 = opcode value is ignored; printer sets ROP to 252. 1 = opcode value is used as the ROP value. If no opcode value is sent, printer sets ROP to 168. If opcode is out of range (some value other then 0-255), the command is ignored and the default ROP of 252 is used. (For example: MC1,60; MC1,60-; MC1,+60; MC1,60+; all set the ROP to 60; however, MC1,-60; or MC1,300; set the ROP to the default value (252). Note This command is the HP-GL/2 version of the PCL Logical Operation command. This command sets a ROP value which affects not only HP-GL/2 operation but also the PCL ROP value. The MC command is defaulted by an IN command. 2-28 Printer-Specific Differences ENWW