Apple LaserWriter 12/640 PS - Manual (Page 183)

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FinePrint Turns FinePrint on or off. FinePrint smoothes out lines and
curves and enhances text and line graphics that would normally appear
ragged. (However, to enhance the quality of images, you may want to turn
FinePrint off.)
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Tray Switch Turns tray switching on or off.
The following options appear only if you open the Properties dialog box
through the Printer folder:
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Installable options Lists the available options and their current state. For
memory configuration, the amount of memory in the printer is displayed.
For all others, the values could be one of: Not Installed, Installed, or
Installed and Preferred.
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Change setting for Sets the value for the option. For memory configuration,
select the amount of memory that currently resides in the printer.
PostScript
Click the PostScript tab to display the PostScript tab dialog box, which
controls the output format.
183 Windows 95 Users