Tektronix Phaser 600 User Manual page 348

Printer Driver
This option prints the image to the selected printer. After you select this
option, you can choose a printer from the Driver name pop-up menu.
When you print from the main Photoshop window, the PhaserPrint plug-in
prints the image on this printer.
PostScript file
This option lets you save an image to disk as a PostScript Level 2 file.
When you click the Save button, another dialog box appears allowing you
to choose a new or existing file for saving the PostScript code.
When you select this option, the File format pop-up menu becomes
available. This pop-up menu has two options: ASCII base-85 and Binary.
ASCII base-85. If you choose this option, the image data is encoded
using an ASCII-85 filter during file output, making the resulting
PostScript file portable so it can be downloaded through interface ports
that don't support binary data. Note that the file may be up to 25%
larger.
Binary. If this you choose this option, image data is output in binary
format.
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