What is Thermal Printer ?

What is Thermal printer?
A thermal impact printer or electrothermal printer is a printer that uses heated pins to "burn" images onto heat-sensitive paper.these printer are commonly used on calculators and  fax machines and althouth they are inexpensive and print relatively fast they produce low resolution print jobs.
A thermal printer,thermal transfer printer , or thermal wax transfer printer is a high quality printer that commonly utilizes a thermal wax ribbon that melts a colored wax onto the paper creating near photo realistic images.