Xerox 6250N Service Manual - Page 201

Background Contamination There is toner contamination on all or most of the page. The contamination appears as a very light gray dusting. The printer displays no error code. Before using this procedure, Ensure the TekColor correction is not set to "None" in the printer's dialog box. Ensure the customer is making less than 2,000 prints per day. Making more than 2,000 prints a day exceeds the duty cycle specifications for the printer. S6200-285 Note Depending on the type of paper and environmental conditions, some light amount of random background spotting (backgrounding) is normal. The whiter and glossier the paper, the more noticeable it will be. Troubleshooting Procedure Step 1 2 3 4 5 6 Check Yes Check the Imaging Unit, Fuser Assembly and the Transfer Roller for correct installation, damage or contamination. Replace or reinstall the affected component. Inspect the surface of the Transfer Roller for wast toner. The roller should appear black and shiny. Is the roller contaminated with waste toner? Replace the Transfer Roller, page 8-4 Does the image quality improve if the Complete Transfer Roller is replaced? Replace the Imaging Unit, PL 9.1.3. Complete Does the image quality improve if the Imaging Unit is replaced? Replace the Fuser Assembly, PL 8.1.1. Does image quality improve if the Fuser is replaced? Complete Check the following pins to the transfer roller contacts for continuity: J5030 Transfer Roller J5020 Transfer Roller Go to Step 7. No Go to Step 2. Go to Step 4. Go to Step 4. Go to Step 5. Go to Step 6. Replace the defective harness. 5-20 Phaser 6250 Color Laser Printer Service Manual