Tektronix PHASER 380 manual Using the Tektronix halftone screens

Troubleshooting 6

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 file name	PC file name
Setscreen On	SCREENON.PS
Setscreen Off and	SCRENOFF.PS
LaserWriter Utility

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.

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