I have a Samsung CLP-620ND printer that has suddenly started making loud grinding noises every time it prints. It also blurs parts of the printouts most of the time as though something is smearing the toner prior to the paper reaching the fuser.
The service manual for this model of printer does not seem to cover noise, and the print quality troubleshooting in this manual does not seem to describe the problem. One review of the printer (that I can no longer find) suggested that the problem might be the paper transfer belt. Before I spend $130+ on a new paper transfer belt, I'd like to know if anyone agrees with this assessment.
What are the likely causes of this problem? How can I fix it? Are there parts I will need to replace?