Xerox 8500DN Service Manual - Page 236

Print-Quality Troubleshooting Repeating Defects Troubleshooting Procedure Step Questions and Actions Yes 2 A single repeating defect that has a different Complete. 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? White Stripes (Pinstripes) No Replace the Drum Assembly. 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. Troubleshooting Reference Applicable Parts ■ X-Axis Motor Example Print s8500-046 5-30 Phaser 8400/8500/8550/8560 Color Printer Service Manual