Apple Personal LaserWriter NTR Specifications Page 27

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CHAPTER 2
PostScript Software
Product Strings 17
Product Strings 2
The Personal LaserWriter 320 printer’s strings contain characters that provide information
about the printer and the printer software. Table 2-5 lists values assigned to the Personal
LaserWriter 320 product strings.
Interpreter Parameters 2
Certain parameters control the operation and behavior of the PostScript interpreter.
Many of them are connected with memory allocation and other specific-purpose
resources. For instance, interpreter parameters control the maximum amount of memory
allocated to virtual memory, font cache, and halftone screens.
The Personal LaserWriter 320 printer is configured initially with interpreter parameter
values appropriate for most applications. However, using a PostScript language
program, you can alter the interpreter parameters to favor certain applications or
to adapt the printer to special requirements. There are three classes of interpreter
parameters: user, system, and device. There are two types of device parameters for
the Personal LaserWriter 320, including communications and engine.
Each parameter class has a PostScript language operator to read the parameter values
and an operator to set parameter values. There are six resulting operators:
currentuserparams, setuserparams, currentsystemparams,
setsystemparams, currentdevparams, and setdevparams.
You can find information on parameter semantics in the PostScript Language Reference
Manual, second edition.
Table 2-5 Product string values
String name Type Value Definition
languagelevel integer 2 Level of the PostScript language
product string Personal LaserWriter 320 Printer name
revision integer 1 Current revision level of the printer
serialnumber integer Depends on printer Serial number of the printer
version string 2013.112 Version of the PostScript language
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