nakin20089 years ago000is it difficult to install this drum unit? mine no longer prints well, even after changing the toner...Show in original language (German)maxrickenb9 years ago-101 Helpful answerThis can be done very well with the help of the instructions and works perfectly.Show in original language (German)Commentsompf9 years ago000Replacing the drum unit is well described and easy to do yourself.Show in original language (German)Comment