Types of receipt printers:
Impact Printers:

Impact receipt printers are also named as Dot-Matrix printers. These printers are less expensive and also flexible. These are resistant to heat and make an ideal choice for use in the kitchen. It can print two ply receipts and two colors (black and white).
Thermal Printers:

They do not use ribbons and pins to print the image. Instead it uses heat to print the images on the paper. These printers do not require you to replace ribbons and also cost less to own and maintain.
Multifunctional printers:
