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| Matrix Printer. |
Dot matrix Printer: dot matrix printer are character printer which print once character at time they form it characters and all kinds as images as a pattern of dost to Figure 9.16 Showings how various types of characters can be formed as a pattern of dots a dot matrix printer has as print head which can move horizontally left to right and right to left, across the paper, the print head contains an array of pints- which can be activated independent of the each other, to extend and strike against an inked ribbon to form a pattern of dost on the paper to-print it a character the printer activates the appropriate set of pins as the print head move horizontally, for faster printing many dot matrix printers are, designed to print both while the print head move from left to right and while it move from right to left, on return, figure 9.17 shows a dot matrix printer.