Lexmark E238 Service Manual - Page 135

Light print 4511-xxx FRU Toner cartridge (not a FRU) Transfer roll LVPS/HVPS board Action Make sure the toner cartridge and PC Kit are installed correctly and that the toner cartridge is not low on toner. If the problem continues, install a new toner cartridge. Recheck condition before replacing PC Kit, if necessary. Check the transfer roll for signs of toner buildup and contamination. Inspect the HVPS contact (transfer roll) for contamination. Verify the high voltage cable is plugged into the LVPS/HVPS. If all components appear free of contamination, replace the following FRUs one at a time in the order shown: • Transfer roll • LVPS/HVPS board White or black lines or bands FRU Print cartridge assembly (not a FRU) Developer drive coupling assembly 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 coupler and drive gears for debris, binds, or damage. Diagnostics-all models 2-103