HP LaserJet 4100 HP PCL/PJL reference (PCL 5 Printer Language) - Technical Ref - Page 51
respectively, of the PCL Picture Frame. In P1 and P2, Using the Scale Command
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For example, to divide the X-axis into 12 units, and the Y-axis into 10 units, specify the X-axis to scale from 0 to 12, and the Y-axis to scale from 0 to 10. P1 becomes the origin with user-unit coordinate (0,0) and P2 becomes (12,10). The entire plotting area is now divided into the desired units. Subsequent plotting commands use these units (see Figure 19-1). If you command the printer to move to the point (3,4), the printer moves to the location equivalent to (3,4) user-units (not (3,4) plotter units). Figure 19-1 User-Unit Scaling with Default P1 and P2 If you move the locations of P1 and P2, the size of the user-units changes. Assume that the previous illustration showed P1 and P2 in their default locations (the lower-left and upper-right corners, respectively, of the PCL Picture Frame). In Figure 19-2, P1 and P2 have the same user-unit values (set with the Scale command [SC]), but their physical locations have been changed (using Input P1 and P2 [IP]). Note that the size of the user-units decreased. EN Using the Scale Command 19-5