What is an image drum?
An imaging drum is a part inside a printer or photocopier that creates the image to be printed. It does this by using a special surface that has areas with different electric charges. These areas attract or repel a special kind of ink called toner, which is then transferred onto paper to create the final printed image. It may also be referred to as an imaging unit or a photoconductor unit.
What is the difference between a toner cartridge and a drum unit?
A toner cartridge is a container that holds the ink powder called toner. The drum unit, on the other hand, is a part of the printer that takes the toner powder from the cartridge and puts it onto paper to make words and pictures. Think of it like the toner cartridge is the ink, and the drum is the part of the printer that puts the ink onto the paper. Without either one, the printer wouldn't be able to make any prints.