types of printers

types of printers

Printers are hard copy output device i.e. the output displayed through printers are of permanent nature and they can be seen on paper till the paper is destroyed or it becomes damaged.Two general type of printers on the basis of technology used in manufacturing process are as follows:

   a. Impact printer
   b. Non impact printer

1. Impact printer:
                           An impact printer creates an image by pressing an inked ribbon against the paper , using pins or hammers to shape the image. A simple example of printer is a type writer which uses small hammers to strike ribbon. Each hammer is embossed with the shape of an alphanumeric characters and that shape is transferred through printers are line printer, dotmatrix printer,band printers, daisy wheel printer etc.

2. Non impact printer:
                                   Non impact printers use various other means rather than hitting on an inked ribbon to create an image. Inkjet printers for example use tiny nozzles to spray droplets of ink onto the page.Laser printer work like photocopies,using heat to bond microscopic particles of dry tones to specific part of the page.