Xerox 8500DN Service Manual - Page 215

Color is Uneven or Wrong Print-Quality Troubleshooting This may be due to incorrect colors in the ink loader, old ink in the Printhead, color mixing at the faceplate, or Drum thermal problems. Using non-Xerox ink may cause unpredictable color results. Initial Actions ■ Check the media used is supported by this printer. ■ Check that the Ink is Genuine Xerox. Troubleshooting Reference Applicable Parts ■ Ink Sticks ■ Drum Fan ■ Drum Heater Relay Board ■ Drum Temperature Sensor ■ Electronics Module ■ Drum Assembly Example Print Color is Uneven or Wrong Troubleshooting Procedure Step Questions and Actions Yes 1 To remove discolored jets in the Printhead, Complete. run the solid fill test print for the color displaying the discolored jets. NOTE For instructions on printing solid fill test prints, see "Black, Red, Green, Blue, Cyan, Magenta, and Yellow Solid Fills" on page 5-42. Purge the Printhead up to 3 times. If improvement is seen, the ink could be discolored. Did this correct the problem? 2 Clean the Drum Maintenance Kit wiper blade Complete. or replace the kit. Did this correct the problem? s8500-034 No Go to Step 2 Go to Step 3. Phaser 8400/8500/8550/8560 Color Printer Service Manual 5-9