Apple Personal LaserWriter NTR Specifications download pdf (Page 24)

CHAPTER 2

PostScript Software

Page Device Parameters

Install procedure This procedure installs values in the graphics state

during each invocation of setpagedevice,

which calls this procedure after setting up the

device and installing it as the current device in the

graphics state but before executing the implicit

erasepage and initgraphics.

The default install procedure is:

{currentpagedevice dup /PreRenderingEnhanceDetails get

/ActualPreRenderingEnhance get {/PreRenderingEnhanceDetails get

/DefaultHalftone get /Halftone findresource} {pop /53x45

/Halftone findresource} ifelse sethalftone {} settransfer

false setstrokeadjust /DefaultColorRendering /ColorRendering

findresource setcolorrendering}

ManualFeed Boolean false This parameter determines whether the input

medium (paper) is to be drawn from the manual

or the automatic feeder. It is true for manual

feeding and false for automatic feeding.

ManualFeedTimeout integer 40 This parameter speciﬁes the number of seconds

the printer will wait for a page to be fed manually

before generating a timeout error. The default is

60 seconds. If the value is set to 0, there is no

timeout, and the printer waits inﬁnitely. Value

persists across power cycles.

Margins array [0 0] This parameter is an array of two numbers that

relocates the page image on the media by x units

in the direction of the x coordinate, and y units in

the direction of the y coordinate. The x and y

values are expressed as 1/300s of an inch. Value

persists across power cycles.

MediaColor string or

null

null This parameter speciﬁes the color of

the input media.

MediaType string or

null

null This parameter speciﬁes the type of media: paper,

transparency, and so on.

MediaWeight number

or null

null This parameter speciﬁes the weight of the media.

NumCopies integer or

null

null If this parameter is not null, it speciﬁes the

number of copies to produce. The value applies to

each individual page or to the entire document,

depending on the setting of Collate. If

NumCopies is null, showpage and copypage

should consult the value of #copies in the current

dictionary stack each time they are executed.

OutputFaceUp Boolean false This parameter determines whether the printed

pages are output face up or face down in the

output tray. If the value is false, the pages are

output face up. If it is true, they are output face

down. Value persists across power cycles.

continued

Table 2-2 Page device parameters (continued)

Key Type Default Description

1 2 ... 19 20 21 22 23 24 25 26 27 28 29 ... 65 66

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Apple Personal LaserWriter NTR Specifications Page 24

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