Table 7-31. Background Scatter (continued) Possible Cause Recommended Action 5. Transfer Roller is dirty or worn. A worn Transfer Roller can cause background scatter due to improper bias voltages. Clean the Transfer Roller using a dry, lint-free cloth. DO NOT touch the Transfer Roller with your fingers. If the problem persists, replace the Transfer Roller Assembly. See “Transfer Roller Assembly” on page 228 for instructions. 6. Print Density is set too low, causing background scatter, particularly with envelopes and heavier papers. Adjust the print density to a higher setting. Background Scatter at Leading Edge Only (Leading Edge Halo) 1. Toner buildup in the Fuser Inlet Guide.
Clean Fuser Inlet Guide. See “Cleaning the Printer and Accessories” on page 82 for instructions. Table 7-32. Repetitive Defects Possible Cause Recommended Action 1. Toner cartridge is damaged. If the defect repeats at any of the following intervals and in the direction of paper movement, it is associated with a component inside the toner cartridge. See figure 7-14 on page 484. Inspect the drum for scratches or damage. Replace the toner cartridge. Use the Repetitive Defect Ruler, figure 7-14 on page 484. 2. Transfer Roller has toner on it. If defects occur on the back of the page at intervals of 61mm (2 3/8 inches), the Transfer Roller may be dirty.
This problem sometimes corrects itself after a few pages . Clean the Transfer Roller using a dry, lint-free cloth. DO NOT touch the Transfer Roller with your fingers. If the problem persists, replace the Transfer Roller Assembly. See “Transfer Roller Assembly” on page 228 for instructions. C4085-91087 Image Quality 477