28) Impact printers (Matrix, Non-Matrix), without impact (thermal, deinjection or inkjet, laser). -Matrix impact printers

28) Impact printers (Matrix, Non-Matrix), without impact (thermal, deinjection or inkjet, laser). -Matrix impact printers: The dot matrix printer or dot matrix printer is a type of printer with the print head that moves from left to right printing on the page by impact, pressing an ink ribbon against the paper, so similar to the operation of a typewriter. Unlike the typewriters or margarita printers, the letters are obtained by selecting points from a matrix, and therefore it is possible to produce different fonts, and graphics in general. -Non Matrix Impact Printer: print without impact. This is the name given to printing made by a set of devices, generally connected directly to the computer, that generate the image without the printer form touching the support. Examples are: laser, thermal, inkjet, sublimation, etc. -Termica: The thermal printer is based on a series of hot needles that run through the thermo sensitive paper, which on contact becomes black. -Injection: Inkjet printers work by ejecting ink droplets of different sizes on paper. They are the most popular printers today for the general public because of their ability to print quality at low cost. -Laser: the printing device consists of a photoconductive drum attached to a toner deposit and a laser beam that is modulated and projected through a specular disc towards the photoconducting drum. The rotation of the disk causes a sweep of the beam on the generatrix of the drum. The zones of the drum on which the beam impinges are ionized and, when those zones (through the rotation of the drum) pass through the toner deposit, attract the ionized powder from it. Subsequently the drum comes into contact with the paper, impregnating the corresponding areas with dust. Finally, the ink is fixed to the paper by means of a double action of pressure and heat.