Computer Printer Types

Computer printers form a family of output devices that render digital documents and images onto physical media, and the field recognizes several distinct printing technologies rather than one design. Laser printers fuse toner powder onto paper using a charged photosensitive drum and heat, producing sharp text at high speed for office volumes. Inkjet printers instead propel tiny droplets of liquid ink directly onto the page, suiting photographic color output at a lower unit cost per machine. Dot matrix printers strike an inked ribbon with a grid of pins, a mechanical approach still used where continuous multi-part forms or extreme durability matter more than print quality. Wikipedia's own overview article on computer printers treats these three approaches as named categories within the same broader device class, alongside thermal and 3D printing, each covered in its own dedicated section describing its mechanism and typical use.