Xerox 8500DN Service Manual - Page 209

Random Light Stripes Print-Quality Troubleshooting One or more color bars are missing on the test page. This is likely caused by a weak or clogged Printhead jet. Initial Actions ■ Run the Eliminate Light Stripes routine from the Control Panel. ■ Check the exit path for debris or contamination. Troubleshooting Reference Applicable Parts ■ Printhead ■ Drum Maintenenace Kit ■ Stripper Carriage Example Print Light Stripes Test Random Light Stripes Troubleshooting Procedure Step Questions and Actions 1 On the Control Panel, select the Eliminate Light Stripes function and follow the procedure on the printed pages. For 8400 printers, this step does not include Jet Substitution. Did this correct the problem? 2 It may be necessary to repeat Step 1 up to 3 times if the stripes still appear. NOTE If there are discolored jets, print the solid fill test print in the color with the discolored jets. In the following example, the yellow stripe has discolored jets, therefore you would print the yellow solid fill. For instructions on printing solid fill test prints, see "Black, Red, Green, Blue, Cyan, Magenta, and Yellow Solid Fills" on page 5-42. Discolored jets usually clear after two or three prints, using the problem jets. Yes Complete. No Go to Step 2. 3 Clean the exit path and Stripper Blade with a Complete. lint-free cloth. Did this correct the problem? Go to Step 4. Phaser 8400/8500/8550/8560 Color Printer Service Manual 5-3