5-20 Phaser 7750 Printer Service Manual
Repetitive Mark Appears on Each Print
An identical mark or image appears on each, or every other, printed image.
From the front panel’s Troubleshooting Menu, select Print Quality Problems,
then select Remove Print Smears. This function passes several blank sheets of
paper through the printer to clean the fuser rollers.
From the front panel’s Troubleshooting Menu, select Print Quality Problems,
then select Repeating Defects Page. The “Repeating Defects Page” contains
rulers to help determine the source of the repeating defects.
84 mm (3.3 in.) Fuser
94 mm (3.7 in.) Fuser (mark in all colors) or imaging unit (mark in single
color)
88 mm (3.5 in.) Transfer roller (2nd bias)
44 mm (1.7 in.) Imaging unit
28.3 mm (1.1 in.) Developer housing roller
3041
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