Specifications

CHAPTER 3
LaserWriter Pro Software
Compatibility Operators 55
Compatibility Operators 3
The PostScript language has undergone a number of significant extensions. The
language is designed to be a universal standard for device-independent page
descriptions, but each PostScript language implementation supports features and
capabilities particular to that implementation. Appendix D, “Compatibility Strategies,”
in the PostScript Language Reference Manual, presents guidelines for taking advantage of
language extensions, while maintaining compatibility with PostScript interpreters.
Level 1 implementations provide a collection of device control and system parameter
configuration operators and procedures, most of which are defined in the dictionary
statusdict. The contents of statusdict are product dependent, although an
attempt has been made to maintain a consistent specification for common features. It is
the dictionary for product-specific operators and other definitions.
FontWeight integer Specifies the weight or boldness of the desired font.
As an option, PostScript contains a weight parameter
in the FontInfo dictionary. The weight name is a
string that maps to a font weight, as shown below:
Weight name LaserJet IIP value
/Thin -3
/Light -3
/Roman 0
/Medium 0
/Book 0
/Regular 0
/Demi 2
/Bold 3
/Heavy 4
/Black 4
/UltraBold 4
/ExtraBold 4
Landscape boolean If true, the initial orientation of the page will be
landscape rather than portrait.
LinesPerInch integer Specifies the default value for the vertical motion
index. This determines the spacing between lines,
and thus the number of lines per page.
ManualFeed boolean See the PostScript Language Reference Manual.
MaxLJMemory integer There are LaserJet IIP PCL escape sequences that
permanently download fonts and macros. With the
flexibility of PostScript Level 2 memory allocation,
the LaserJet IIP emulator permanently acquires
memory at the expense of other PostScript needs,
such as virtual memory and font cache.
Table 3-22 Emulator parameters (continued)
Key Type Semantics