Remove the cartridge and check the bronze smart chip contacts, (See images below; click on them to enlarge). Inspect the contacts' surface for signs tarnishing, discoloration, toner, or other contamination. To clean: Wipe with a cloth dampened with rubbing alcohol or water. This may clean off some contaminants. A more effective cleaning method is to use 400-grit sandpaper or a pencil eraser on the cartridge contacts. Note: When cleaning the contacts or handling the cartridge, be careful not to deform the thin, bronze parts. Smart chip contact location Smart chip area to clean If the error persists, contact Lexmark Technical Support for toner cartridge replacement. |