Disappointed. I used about half the toner and I started to get terrible copies and printed documents. The ink was smeared and the documents had smeared vertical lines and dark backgrounds. I cleaned the printer and performed cleaning maintenance on the drum and it was not better. I put in a different toner cartridge and the printed documents were perfect. This lead me to believe that the drum on the toner cartridge became defective. I have purchased other cartridges from Supermediastore with much success. I will try again.