is toner and a drum the same thing?
What is the difference between a drum cartridge and a toner cartridge? For example an HP toner cartridge holds toner and dispenses it as needed to make copies (in a copier) or to prints pages (in a printer). The photoreceptor drum is the surface to which the toner adheres before being transferred to the paper. The drum has a long but finite useful lifetime and must be replaced occasionally. Some copiers/printers have drum cartridges which can be changed out by the user.