DMP Printer ( Dot Matrix)

What Is Dot Matrix Printer

A type of printer that produces characters and illustrations by striking pins against an ink ribbon to print closely spaced dots in the appropriate shape. Dot-matrix printers are relatively expensive and do not produce high-quality output. However, they can print to multi-page forms (that is, carbon copies), something laser and ink-jet printers cannot do.

Dot-matrix printers vary in two important characteristics:

speed: Given in characters per second (cps),the speed can vary from about         50 to over 500 cps. Most dot-matrix printers offer different speeds depending       on the quality of print desired.

print quality: Determined by the number of pins (the mechanisms that print          the dots), it can vary from 9 to 24. The best dot-matrix printers (24 pins) can        produce near letter-quality type, although you can still see a difference if              you look closely.

In addition to these characteristics, you should also consider the noise factor. Compared to laser and ink-jet printers, dot-matrix printers are notorious for making a racket.