Do the screens in cassettes require service?
A. Yes. They do become dirty over time and accumulate rubbed off film emulsion. In addition, the glue fastening them to the backing of the cassette often becomes loose. The result is poor film screen contact which degrades the image. Obtain a good quality screen cleaner from your supplier and use it at least annually. There are simple ways of determining film screen contact. Check with your service company or contact your surveyor.
