A laser printer.
http://en.wikipedia.org/wiki/Laser_printer
Laser printers use a drum and toner.
Brother DCP-7030.
Laser printers use a drum and toner in the printing process.
Advantages of drum printers
Certain printers do, yes. These types of printers are called Laser Printers. The other type, which uses nozzles and ink cartridges, is called an Ink jet Printer. The drum on a laser printer might not be the kind you're thinking of. It's actually just a big rotating tube that transfers the toner from the toner cartridge to the paper. The toner is particles that have a positive charge, and are attracted to the drum where there is a negative charge (The drum is negatively charged by a laser, thus the name Laser Printer).
Drum printers use a rotating drum coated with a photoconductive material to produce images on paper. They are characterized by high-quality print output, especially for text and graphics, and can produce multiple copies from a single drum cycle. Drum printers typically operate at high speeds and are known for their durability and reliability in high-volume printing environments. Additionally, they often have a lower cost per page compared to other printing technologies, making them economical for businesses.
During the writing phase, the uniform high charge is discharged only in the places where toner is meant to stick to the drum. This is how the laser printing process that determines when the toner sticks to the drum.
They are entirely different. Laser printers use a dry powder toner, a laser, and a heated drum. Inkjet printers use liquid ink in a cartridge(s) whose ink is blown on to the paper in a pattern that forms characters and images.
Writing
It is during the developing phase of the laser printing process that toner is applied to the latent image on the drum. The toner is a negatively charged mixture of plastic and metal particles.
The purpose of the corona wire on a drum is to create a static charge on the surface of the drum. This charge helps attract toner particles to the drum, allowing for the transfer of the toner onto the paper during the printing process. In essence, the corona wire helps facilitate the printing process by ensuring that the toner adheres properly to the drum and is transferred accurately onto the paper.
No all laser printers require an imaging drum to in order for the laser to write the image on.