HP 5961-0509 manual Commands Affected by P1/P2, 19-28The Configuration and Status Group

	If you specify P1 and P2 beyond the PCL Picture Frame, your drawing
	is scaled with respect to those locations; however, only the portion of
	the drawing fitting within the effective window is drawn.
Note	The specified P1/P2 percentages are converted to the equivalent
	plotter unit coordinates. If the coordinate system orientation
	subsequently changes (for example, by sending an RO command),
	the plotter unit position is maintained with respect to the new
	orientation. If an IP command without parameters is executed after
	the axes have been rotated with the RO command, P1 and P2
	locations change to reflect the rotation.
	The locations of P1 and P2 interact with the following commands:

Table 19-13 Commands Affected by P1/P2

Command	Group
IW, Input Window	The Configuration/Status Group
RO, Rotate Coordinate System
SC, Scale
FT, Fill Type	The Line and Fill Attributes Group
LT, Line Type
PW, Pen Width
WU, Pen Width Unit Selection
DR, Relative Direction	The Character Group
LB, Label
SR, Relative Character Size

An IR command remains in effect until another IR command is executed, an IP command is executed, or the printer is initialized.

19-28The Configuration and Status Group EN