Printer User Manual

Troubleshooting 6
User Manual 6-33
Using the Tektronix halftone screens
Tektronix halftone screens are designed for Tektronix printers, and improve
print quality over application-set halftone screens. The Setscreen Off
(SCRENOFF.PS) utility Þle redeÞnes some PostScript operators, such as the
setscreen, setcolorscreen and sethalftone. By default, the printer prevents
applications from overriding the Tektronix proprietary halftone screens.
Use the following utility Þles, depending on your computer type, to control
application-deÞned halftone screens in your prints.
Macintosh users
1. Refer to ÒUsing the Macintosh InstallerÓ on page 2-47 for
instructions on installing the utility Þles from the Phaser 380
printerÕs CD-ROM.
2. Select the appropriate printer in the Chooser.
3. In the PhaserTools folder on your computerÕs hard disk, locate the
LaserWriter Utility and double-click its icon to start the application.
4. From the Utilities menu, choose Download PostScript File.
5. Select either the Setscreen On or the Setscreen Off Þle from the list,
then click Open. (These Þles were installed in the Printer Utilities
folder, inside the PhaserTools folder.)
6. At the prompt Save PostScript output as: you are asked
for a Þle name for saving printer output. Use either the default
name given in the edit box or type a new name. Click Save to
send the Þle to the printer.
7. If no output is returned by the printer, the LaserWriter Utility
displays a dialog box; click OK continue.
Macintosh file name PC file name
Setscreen On
Setscreen Off and
LaserWriter Utility
SCREENON.PS
SCRENOFF.PS