Apple 310 manual Printer Error Parameter, Setpacking

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C H A P T E R 2

LaserWriter Select 310 Software

setpacking

Syntax

bool setpacking –

Definition This operator determines the type of executable arrays subsequently created by the PostScript interpreter’s scanner. It sets the array packing mode to the specified boolean value. The value true selects packed arrays. The value false selects ordinary arrays.

The packing mode affects only the creation of procedures by the scanner when it encounters program text bracketed by { }, during interpretation of an executable file or string object; or during execution of the token operator.

It does not affect the creation of literal arrays by the [ ] operators, or by the array operator.

The array packing mode persists until it is overridden by another execution of setpacking or is undone by restore.

Example:

systemdict/setpacking known {/savepacking currentpacking def true setpacking

} if

... arbitrary procedure definitions ...

systemdict/setpacking known [savepacking setpacking] if

Errors stackunderflow, typecheck

Printer Error Parameter

The LaserWriter Select 310 printer has one parameter that allows you find out what has caused an error condition, and how many times the printer has attempted to complete a specific job.

38

Setting Compatibility Operators

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Contents Apple LaserWriter Select 310 Printer Limited Warranty on Media and Replacement Contents Page Communication Channels Page Figures and Tables Page About This Note What This Note ContainsConventions Used in This Note Other Reference MaterialFor More Information ApdaPage LaserWriter Select Hardware1 LaserWriter Select 310 Hardware ROM Communication Ports Serial Port for RS-232C DevicesCentronics Parallel Connector 2An 8-pin serial port connectorPstrobe Signal Status Lights Memory Capabilities ROM CapabilityDram Expansion Batch ModeBasic Operation Interactive Mode TypesPaper Handling 7Paper handling options Page LaserWriter Select 310 Software PostScript Interpreter Software OverviewAdobe PostScript Programming Language LaserWriter Select 310 Driver TypesSelects the paper tray containing A4-size paper and sets Communication Device Parameters Software ParametersProduct Strings Compatibility OperatorsStatusdict Setting Compatibility Operators Device Defaulttimeouts Setting System ParametersCheckpassword IdlefontsProductA PrinternameProduct RamsizeSetidlefonts SetdefaulttimeoutsSetpassword Defaultpapertray Setting Page Device ParametersDefaultmultipurposetraysize SetprinternameMargins ManualfeedtimeoutManualfeed PagestackorderPapertray SetdefaultmultipurposepapertraysizePapersize Setmargins SetdefaultpapertraySetdostartpage Setpapertray SetpagestackorderSetpagetype Setjobtimeout Setting User ParametersJobtimeout JobnameSetsoftwareiomode Setting Device ParametersWaittimeout Packetbackchannel Setting Communication ParametersSoftwareiomode Sccbatch SetpacketbackchannelDarkness Setting Engine Device ParametersSetsccbatch Currentcacheparams Setting Extensions to PostScript LevelSetdarkness CurrentpackingPackedarray SetcacheparamsPrinter Error Parameter SetpackingPrintererror PostScript Language ChangesCreating Packed Arrays Packed ArraysPacked Arrays Versus Ordinary Arrays Immediately Evaluated Names Device Resolution Images Changes in Font Cache OperationEnd-of-Line Recognition TrueType Fonts New OperatorsCommunication Channels Serial Communication Baud RatesDTR Flow Control Parity SettingsFlow Control SCC Operator Encoding XON/XOFF Flow ControlCommunication Protocols Simple Communication ProtocolBinary Communication Protocol SOH CTL-A Communicating with an IBM PC Parallel InterfaceSerial Interface DTR Flow Control for PC CommunicationCommunication Dynamics XON/XOFF Flow Control for PC CommunicationStatus Queries and Spontaneous Messages Errorerror OffendingCommand operator %%