Specifications

CHAPTER 2
LaserWriter 16/600 PS Software
Page Device Parameters 23
InputAttributes
dictionary
Depends
on config-
uration
This dictionary contains an entry for each
source of input media available for the printer.
The values x and y depend on which paper tray
is installed. The 50-sheet manual feeder and
250-sheet universal cassette are always present.
However, if an optional paper cassette is
installed but missing, the corresponding entry
in the InputAttributes dictionary is set to
null. This can happen only when the printer
is turned on and the tray is not installed. If a
job is sent to the printer and the tray is removed,
the PostScript interpreter assumes a tray of
the same size will be installed and sets the
attributes accordingly. If a different tray is
installed, the attributes change to reflect the
characteristics of the new tray. There are values
of matching tolerance for the PageSize
parameter. See PageSize later in this table.
Install
procedure This procedure installs values in the graphics
state during each call to setpagedevice. The
setpagedevice operator 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 operators.
The default install procedure is:
{
currentpagedevice /PreRenderingDetails get
dup /DefaultHalftone get
exch /ActualPreRenderingEnhance get not {
-dict- exch 2 copy known { get }{ exch pop } ifelse
} if
/Halftone findresource sethalftone
{} settransfer
false setstrokeadjust
/DefaultColorRendering /ColorRendering
findresource setcolorrendering }
ManualFeed
boolean
false
The value of this parameter determines whether
the input medium (paper, and so on) is to be
drawn from the manual or the automatic feeder.
The value of this parameter is true for manual
feeding, and false for automatic feeding.
continued
Table 2-2 Page device parameters (continued)
Key Type Default Description