Complete Computer Knowledge Portal

Saturday, March 30, 2013

Dot Matrix Printer

Dot Matrix Printers(DMP) are impact Printers and make use of Print head for the printing. Print head strikes an ink-soaked cloth ribbon against the paper,to generate text or graphics.it is similar to type writer but the difference is that in typewriter each font uses its own striker whereas in DMP same print head performs this by using matrix pattern.
Working Principle: Printer head Moves in horizontal direction.Print Head controller controls it by sending electrical signals which forces the appropriate wires to strike against the inked ribbon, making dots on the paper and forming the desired characters. below given clearly illustrates this.

Below given image illustrates the common parts of a DMP.

No comments:

Post a Comment