Dear Member,
''This is our last post related to Output Devices Session''
In this post we give you brief knowledge about Printer its types & its uses...
SO FRIENDS LETS START LESSON
- Printer :-
- Types of Printer :-
2).Non impact printers
- Impact Printers :-
- Daisy Wheel Printer :-
- Dot Matrix Printer :-
A type of printer that produces characters and illustrations by striking pins against an ink ribbon to print closely spaced sots in the appropriate shape. Dot matrix printers are relatively expensive and do not produce high quality output.
- Non impact Printers :-
Most non impact printers produce dot matrix patterns. Several different technologies have been used to provide a variety of printers.
The main types of non impact printers are :-
- Thermal Printer
- Laser Printer
- Ink Jet Printer
A thermal printer uses heat to form an image onto a special kind of paper. This paper have a coating that changes to black color when exposed to heat over a period of time.
2). Laser Printers :-
A type of printer that utilizes a laser beam to produce a image on a drum. The light of the laser alters the electrical charge on the drum whenever it hits. The drum is then rolled through a reservoir of toner, which is picked up by the charged portion of the drum. Finally, the toner is transferred to the paper through a combination of heat and pressure. This is also the way copy machines work.
3). Ink Jet Printers :-
Inkjet printers are the most common type o consumer printers. The inkjet technology works by spraying very fine drops of ink on a sheet of paper. These droplets are ''ionized'' which allows them to the directed by magnetic plates in the ink's path. As the paper is fed through the printer, the print head moves back and forth, spraying thousands of these small droplets on the page.
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