A:AnswerIts primary role is to attract the toner particles by way of electrostatic polarities. The laser printer drum operates as the photo conductive unit which serves as the image processing core. Basically, it is a set of parts that specifically work to transfer and paint a digital image right into the surface of the drum. The document to be printed is transformed into a raster image by the computer and sent into the printer. These processes take place during printing.
A:AnswerToner and Drum replaced separately. This way you don't waste toner when drum gives out. I purchased toner at the same time, but will not install the toner until machine runs out.
