what is pos printer

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  The pos printer is main used to print the receipt. such as the supermarket receipt, back receipt, restaurant receipt etc..basically, the pos printer is thermal Printer. it doesn't need the Ribbons. just need thermal receipt paper.
Thermal Printer working
  in the cause of printing, thermal paper is inserted between the thermal head and the platen. the printer sends an electric to the heating elements of the thermal head which generate heat. The heat activates the thermo-sensitive coloring layer of the thermosensitive paper,
POS Printer type

  the pos printer have three type size, one 58mm width and 80mm width and 76mm width. 58mm and 80mm width is thermal pos printer, 76mm width printer is dot matrix printer, it needs colored tapes and it can support 3 copies receipt paper. Mainly, the 58mm thermal pos printer use to supermarket,Bank, vendor etc.... 80mm thermal pos printer use for restaurant, taxi, kiosk etc...

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