Dot matrix printers are character printers,which print one character at a time.They form characters and all kinds of images as a pattern of dots.A dot matrix printer has a print head,which can move horizentlly across the paper.The print head contain an array of pins,which can be activated independent of each other to extend and strike against an inked ribon to form a pattern of dots on the paper.
Dot matrix printers are normally slow with speed usually ranging between 30 to 600 characters per second.However,they are cheap in term of both initial and cost op operation.
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