Xerox 8500DN Service Manual - Page 225
Poor Primary Fills Troubleshooting Procedure, Questions and Actions, Y-axis, Encoder
UPC - 095205022063
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Print-Quality Troubleshooting Poor Primary Fills Troubleshooting Procedure Step Questions and Actions Yes No 1 Banded and inconsistent primary fills may Complete. indicate a missing, weak, or discolored jet. 1. Print the Weak/Missing Jet test print. 2. If there are discolored jets, print the Solid Fill test print in the affected color. Did this correct the problem? Go to Step 2. 2 1. Test the Y-Axis Encoder. 2. Run the Service Diagnostics Y-axis Encoder test. Is the Y-axis encoder working properly? Go to Step 3. Clean the Drum encoder or replace the Drum Assembly. 3 If the bands are uniform, or in a corduroy Go to Step 4. Replace the X- pattern, check X-Axis motion. See "White Axis Motor or Stripes (Pinstripes)" on page 5-30. Electronics Did this correct the problem? Module. 4 Try the procedure listed on "Black, Red, Green, Blue, Cyan, Magenta, and Yellow Solid Fills" on page 5-42. Did this correct the problem? Complete. Phaser 8400/8500/8550/8560 Color Printer Service Manual 5-19