Lexmark E310 Service Manual - Page 56

4044-XXX White or black lines or bands FRU Toner Cartridge Paper Feed Drive Gears Action Banding appears as light or dark horizontal lines on a uniformly gray page or on a page with a large area of graphics. Banding is primarily due to a variation in the speed of the paper as it feeds through the printer especially in the developer and transfer process. Inspect the toner cartridge and paper feed components, especially the drive gears, for signs of wear, debris, binds or damage. Toner on back of page FRU Print Cartridge Fuser Hot Roll Backup Roller Transfer Roller Action Inspect the overall paper path for signs of spilled toner. Gently clean the contaminated areas with a soft cloth or compressed air. The fuser hot roll can cause toner on the back of the paper if toner is building up on the hot roll. This buildup may transfer to the backup roller, later transferring to the backside of the paper. Inspect the hot roll and backup roller for signs of contamination and replace as necessary. A transfer roller contaminated with toner can cause toner to transfer to backside of printed pages. Inspect the transfer roller for contamination and replace as necessary. Incorrect characters print Make sure the correct printer driver software is installed. Incorrect software can cause incorrect characters to print and the image may not fit the page. 2-34 Service Manual