2 | Power off the printer then remove and reinstall the waste toner bottle. See the steps below and the corresponding images on the right to locate and remove the waste toner bottle. A. Open the front door (1) and lower the inner photoconductor locking door (2) , B. Pull the toner bottle out and push it back in. Note: Make sure it seats properly. Did this clear the error? | Issue is resolved.. The error can occur if the toner bottle is not properly inserted. | Contact Lexmark Technical Support for other troubleshooting suggestions. |