beautypg.com

Tektronix Phaser Color Printer 750 User Manual

Page 68

background image

Advanced Features and Troubleshooting Manual

59

Troubleshooting Phaser 750 Printers

Vertical scratches

The surface of the printed image appears to have vertical scratches (visible by holding
the print at an angle and observing the “shine” of the image).

At first, the scratches appear only on the printed image; eventually, dark vertical
scratches appear on the unprinted portion of the page.

Replace the Fuser (depending on your quality needs, you can continue to print until
the dark vertical lines appear).

Light vertical streaks appear in all colors (most easily visible in yellow)

Replace the Main Charge Grid.

Dark and wavy vertical streaks appear in all colors

The solution is one of the following:

Remove and reinsert the Main Charge Grid.

Replace the Main Charge Grid.

Replace the Imaging Unit.