Compuprint 4247-Z03 Programmer Manual - Manual (Page 97)

Logical Page Layout
IPDS describes the printed output in terms of logical pages. The logical page does not have to be
contained completely on the physical medium. However, printing can only occur where the two areas
overlap. Figure 3 shows the physical-logical page relationship.
The logical page reference corner is the corner of the logical page that is at the smallest Xp, Yp position.
This corner does not necessarily have to coincide with the physical medium origin (X
m
=0, Y
m
=0). The
logical page size in the X dimension is the 'X-Extent', and the logical page size in the Y dimension is the
'Y-Extent'. IPDS commands specify the logical page size and location. Figure 5-4 shows the relationship
Figure 2. The X
m
,Y
m
Medium Coordinate System
Figure 3. The Physical-Logical Page Relationship
Chapter 3. Intelligent Printer Data Stream 77