Repetitive Defects (continued) Skew 124 Chapter 6 Troubleshooting C4170-90959 Possible Cause Action Fuser is dirty or defective. If the defect repeats 75 mm (2.95 inches) on the front of the page, the defect is associated with the Fusing Film unit. If the defect repeats at 63 mm (2.48 inches) on the back of the page, the defect is associated with the Pressure Roller. See also “Repetitive Defect Ruler” (page 127). Clean the Fuser using alcohol. If the problem persists, replace the Fuser. Gears are worn, causing slippage or jumping. Inspect the gears driving the Toner Cartridge and the Fuser. Replace the Main Drive Assembly if necessary.
Possible Cause Action Paper does not meet printer specifications or is stored improperly. 1. Print a few more pages to see if the problem corrects itself. 2. Turn over the stack of paper in the tray. Also try rotating the paper 180 degrees. 3. Check the paper (or other print media) type and quality. Replace the paper, and advise the customer to use the recommended paper and store it properly. See “Media Troubleshooting” (page 129) Paper is not loaded correctly or trays are not adjusted properly. Make sure paper is loaded correctly and that the front and back paper tray guides fit properly against the paper stack. Registration Assembly is defective.
Inspect the Registration Assembly and if replace if necessary.