Apple LaserWriter 12/640 PS - Manual (Page 184)

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PostScript Output format Tells the driver to build PostScript document
descriptions that print as fast as possible when “optimize for speed” is
selected. Such document descriptions might not print successfully on
printers with limited memory. Select “optimize for portability” to tell the
driver to build PostScript document descriptions that print successfully on
many different printers. Select “encapsulated PostScript” to tell the driver
to build an encapsulated PostScript document description, rather than a
PostScript description. Select “archive format” to suppress many of the
printer settings that might prevent the file from printing. Choose this
option only if the file might be printed on unknown devices.
The following options appear only when you open the Properties dialog box
from the Printer folder:
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Assume header is downloaded and retained When checked, tells the driver to
send the document to the printer without the PostScript header.
The PostScript header contains instructions that the printer needs to print
correctly. Select this option only if you are an advanced user with
experience working with PostScript headers.
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Send Header Now Sends the PostScript header to the printer and selects the
“Assume header is downloaded and retained” option.
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Print PostScript error information When checked, tells the driver to print any
PostScript errors to the printer.
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Job timeout Sets the maximum number of seconds that the printer will
spend trying to print a document before canceling the print job. A value of
zero means that the job is never canceled.
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Wait timeout Sets the maximum number of seconds that the printer will wait
for Windows to send data before canceling the print job. A value of zero
means that the job is never canceled.
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Advanced Displays the Advanced PostScript dialog box, used to set data
communication protocol and format. Only experienced PostScript users
should set options in the Advanced PostScript dialog box.
184 Chapter 8