Printers

PRINTER
When we process, calculate our data in computers and we require the out put result in hard form, we use printers to print our data on papers or other medium either in text form or in image, there are several types of printers, such as Dot Matrix, Line, Laser, Daisy wheel, etc.


DOT MATRIX
In this printer a wire pin strokes the ink tap as it was used in type writers, the quality of printing depends on how much dots made up by pin on paper and how much pins it have. This printer is categorized by the number of pins, such as 9 – 24 are typical printers.

LINE Printer
This printer is normally use with mainframes, in networks, or with minicomputers, this printer prints data line by line and gives out put page by page on 11 by 17 inches of paper, this printer is use in organizations where high speed is required.

LASER
Photocopier technology is used in laser printers, a mirror and a laser beam puts the data on photosensitive drum in an image form, this image stored in electro statically form on the drum, from where with the help of heat this data transferred from drum to paper.

DAISY WHEEL
In this printer the characters are embossed on the wheel and this wheel spins with a very high speed, at that time a hammer hit the specific character, which push the ribbon and that specific character pasted on paper.