Apple 310 manual Software Parameters, Product Strings, Communication Device Parameters

Page 31

C H A P T E R 2

LaserWriter Select 310 Software

Product Strings

Table 2-2 lists values assigned to the product strings associated with the LaserWriter Select 310 printer.

Table 2-2

Product string values

 

 

 

String name

Type

Value

product

string

LaserWriter Select 310

productA

string

LaserWriter Select 310

version

string

52.5

Software Parameters

This section defines the software parameters that enable you to set up and configure the LaserWriter Select 310 printer. These parameters fall into two broad categories:

communication device parameters

compatibility operators

Communication Device Parameters

The LaserWriter Select 310 printer has two communication ports: an RS-232 serial port and a Centronics 36-pin parallel port. The section “Setting Communication Parameters,” later in this chapter, defines communication channel parameters. Chapter 3, “Communication Channels,” provides detailed information on this subject.

The LaserWriter Select 310 printer does not need to change parameters for the parallel communication channel, nor is it equipped to do this.

Compatibility Operators

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, second edition, 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.

Software Parameters

19

Image 31
Contents Apple LaserWriter Select 310 Printer Limited Warranty on Media and Replacement Contents Page Communication Channels Page Figures and Tables Page What This Note Contains About This NoteOther Reference Material Conventions Used in This NoteApda For More InformationPage LaserWriter Select Hardware1 LaserWriter Select 310 Hardware ROM Serial Port for RS-232C Devices Communication Ports2An 8-pin serial port connector Centronics Parallel ConnectorPstrobe Signal Status Lights ROM Capability Memory CapabilitiesBasic Operation Batch ModeDram Expansion Types Interactive ModePaper Handling 7Paper handling options Page LaserWriter Select 310 Software Adobe PostScript Programming Language Software OverviewPostScript Interpreter Types LaserWriter Select 310 DriverSelects the paper tray containing A4-size paper and sets Compatibility Operators Software ParametersProduct Strings Communication Device ParametersStatusdict Setting Compatibility Operators Device Idlefonts Setting System ParametersCheckpassword DefaulttimeoutsRamsize PrinternameProduct ProductASetpassword SetdefaulttimeoutsSetidlefonts Setprintername Setting Page Device ParametersDefaultmultipurposetraysize DefaultpapertrayPagestackorder ManualfeedtimeoutManualfeed MarginsPapersize SetdefaultmultipurposepapertraysizePapertray Setdostartpage SetdefaultpapertraySetmargins Setpagetype SetpagestackorderSetpapertray Jobname Setting User ParametersJobtimeout SetjobtimeoutWaittimeout Setting Device ParametersSetsoftwareiomode Softwareiomode Setting Communication ParametersPacketbackchannel Setpacketbackchannel SccbatchSetsccbatch Setting Engine Device ParametersDarkness Currentpacking Setting Extensions to PostScript LevelSetdarkness CurrentcacheparamsSetcacheparams PackedarraySetpacking Printer Error ParameterPostScript Language Changes PrintererrorPacked Arrays Versus Ordinary Arrays Packed ArraysCreating Packed Arrays Immediately Evaluated Names Changes in Font Cache Operation Device Resolution ImagesEnd-of-Line Recognition New Operators TrueType FontsCommunication Channels Baud Rates Serial CommunicationFlow Control Parity SettingsDTR Flow Control XON/XOFF Flow Control SCC Operator EncodingSimple Communication Protocol Communication ProtocolsBinary Communication Protocol SOH CTL-A Parallel Interface Communicating with an IBM PCDTR Flow Control for PC Communication Serial InterfaceXON/XOFF Flow Control for PC Communication Communication DynamicsStatus Queries and Spontaneous Messages Errorerror OffendingCommand operator %%