Printers are commonly used in trade in order to optimize the workflow. For example, for printing labels with different information or bar codes are used special label printers. They can be both thermal transfer and thermal printers. The principle of operation of thermal printers involves direct thermal printing. That means that the application of information during this method of printing is made directly on labels made ​​of special thermal paper by heating of the print head. For the manufacture of various plastic cards used in shops and other trading enterprises are widely used plastic card printers. They allow not easily apply high quality image to the surface, but also provide its stability and long-term use. Check printers are not less popular that are intended for printing receipts, bills sales vouchers and other fiscal documents, as well as for printing of cashier’s checks on the computer.