HP PCL/PJL reference (PCL 5 Printer Language) - Technical Reference Manual Part II

EN SC, Scale 19-41
There are three forms of scaling: anisotropic, isotropic, and
point-factor. The Type parameter tells the printer which form you are
using. Refer to the following table.
z No Parameters — Turns off scaling; subsequent coordinates are
in plotter units.
For Scaling Types 0 and 1:
The following forms of scaling establish a user-unit coordinate system
by mapping user-defined coordinate values onto the scaling points P1
and P2. The type parameter selects between anisotropic (Type 0) and
isotropic scaling (Type 1).
Table 19-18
Scaling Form Type Description
Anisotropic 0 Establishes standard user-unit
scaling allowing different unit size
on X-axis and Y-axis.
Isotropic 1 Establishes standard user-unit
scaling with same unit size on X-axis
and Y-axis.
Point Factor 2 Establishes P1 user-unit location
and a specific ratio of plotter units
to user-units.
Table 19-19
Scaling
Form Type Syntax
Anisotropic 0 SCXMIN,XMAX,YMIN,YMAX[,type;]
Isotropic 1 SC%%X
MIN
,X
MAX
,Y
MIN
,Y
MAX
[,type[,left,bottom];]