Tektronix Phaser 750 User Manual page 124

Troubleshooting Phaser 750 Printers
Each color bleeds into the color band below it (the most visible is magenta in the yellow
band)
I
Replace the Imaging Unit.
A single white spot appears in approximately the same vertical place on the page
I Run 20-30 blank pages of paper.
I If the problem persists, replace the Imaging Unit.
A single, wide, light horizontal band appears in one place on the page (near the top) or
all colors are faded
I Wait overnight.
I If print quality has not changed, replace the Imaging Unit.
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Phaser 750 Color Printer