Printing Problem with the HP LJ M5035 MFP

Hey,



I've got a probelm with my HP LaserJet M5035 MFP. When the printer starts checking the functionality of the mechanical parts, I hear a loud sound (clatter). The sounds starts at 6/6 D-E of the self-check. I can still print with it, but the text is very irregular. Can anyone give me advice on how to fix my problem?



Thanks for the help

AF_P