For some printer features you can use the downloadable utility files available on the Phaser 600 printer's CD-ROM.
Use the utility files to set up spool queues with printer features such as print quality and color corrections. The utility files can also perform such tasks as changing the printer's name, resetting the printer, and using an error handler; refer to Using the utility files for details.
The utility files are written in the PostScript Level 2 programming language, and in a few cases you may have to edit the files to change the default parameters.