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5-30 Phaser 8400/8500/8550/8560 Color Printer Service Manual
Print-Quality Troubleshooting
White Stripes (Pinstripes)
This print-quality problem has a series of regularly spaced white stripes
approximately 6
mm (.25 in.) apart. If the X-Axis Motor does not move the
Printhead smoothly and evenly during printing, vertical lines appear on the
print.
Initial Actions
■ Check the media used is supported by this printer.
■ Check that the Printhead is free to move in the horizontal direction.
2 A single repeating defect that has a different
Y position on each page, but the same X
position on each page is probably due to a
defect on the Drum.
Clean the Drum.
Did this correct the problem?
Complete. Replace the
Drum
Assembly.
Troubleshooting Reference
Applicable Parts Example Print
■ X-Axis Motor
Repeating Defects Troubleshooting Procedure
Step Questions and Actions
Yes No
s8500-046