What is the Photocopier - What is a photocopier??

Also known as a copier or copy machine a photocopier makes paper copies of documents Most photocopiers use xerography a dry printing process in which electrostatic charges are used to transfer toner onto paper in the same position as the original document which is then bonded into place using heat and or pressure Modern digital photocopiers are often made up of an integrated scanner and laser printer which also uses a xerographic method of printing although some may use an integrated scanner and inkjet printer Standard photocopiers tend to use black toner to produce black and white copies but colour photocopiers are also available

Glossary

Image Drum - What is an image drum?

Definition of IMAGE DRUM:

A component found in ion deposition printers, laser printers, xerographic printers, and photocopiers.

An image drum is the image carrier or imaging device used in some non-impact methods of printing. The image being printed is created on the surface of the image drum, which then transfers toner onto the substrate in the correct position to form the final printed image.

The image is made up of a pattern of charged and neutral areas on the surface of the drum; this is accomplished by charging a photoconductive drum and then using light to discharge or reverse the charge of specific areas of the drum, or by depositing charged ions onto a nonconductive drum in the required pattern.

Static electricity causes toner (which has been given the opposite charge to the drum) to be attracted or repelled by the remaining charges on the drum to form the final image, which is then transferred to the substrate.

Image drums may also be refered to as imaging drums, drum units, photoreceptors, or cyclinders. In some machines, a belt is used instead of a drum.

Some printers have a standalone image drum that is a completely independent unit. In others, the image drum may combined with the toner cartridge, either in the form of two pieces that snap together or as one combined unit.

An image drum from a desktop laser printer.

Here is the Harvard-style citation to use if you would like to reference this definition of the term image drum:
Label Planet (2020) What is an image drum? | Image Drum Definition. Available at: https://www.labelplanet.co.uk/glossary/image-drum/ (Accessed: January 1, 2024).

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