Thermal printer is the use of thermal printing technology, that is, the use of special thermal paper, chemical reaction at high temperatures and discoloration, in order to achieve the effect of printing. In addition to needle printing, thermal printing technology with low noise, fast, Thermal Printer clear print and other characteristics, is now in the banking system, POS terminal systems, medical equipment, and other aspects of a wide range of applications.
The working principle of the thermal printer is to install the semiconductor heating element on the print head. After the print head is heated and touched with the thermal paper, Thermal Printer the desired pattern can be printed. The principle is similar to that of the thermal fax machine. The image is generated by heating and producing a chemical reaction in the film. The thermal reaction of this thermal printer is carried out at a certain temperature. High temperature will accelerate this chemical reaction. When the temperature is below 60 ℃, Thermal Printer the paper needs to go through a long, or even several years to become dark; and when the temperature is 200 ℃, this reflection will be completed in a few microseconds.
For thermal printers, literally can be understood as the use of sensitive elements in the heating state of the chemical reaction to print the instrument, which will heat the printer's printing principle described most vividly. A semiconductor heating element is provided on the print head of the thermal printer for heating the thermal paper; Thermal Printer the print head is used to select the desired printing position or image; the thermal paper is used to accept the printing position and to change color at high temperature To achieve the purpose of printing.
Thermal printer: Advantages: low noise, fast, easy to print, easy to use;
The thermal printer selectively heats the determined position of the thermal paper, thereby producing a corresponding pattern. The heating is provided by a small electronic heater on the printhead in contact with the heat sensitive material. The heater is arranged in the form of a square or strip in the form of a logic control by the printer, and when driven, a pattern corresponding to the heating element is produced on the thermal paper. Control the heating logic of the same logic circuit, but also control the paper feed, Thermal Printer which can be printed on the entire label or paper graphics.
The most popular thermal printer uses a fixed printhead with a heated lattice, with a print head with 320 square points, each 0.25mm × 0.25mm. With this dot matrix, the printer can print the dot at any location on the thermal paper. This technology has been used on paper printers and label printers.
Thermal printer can only use a dedicated thermal paper, Thermal Printer thermal paper coated with a layer of heat will produce a chemical reaction and discoloration of the coating, similar to the photographic film, but this layer of coating is hot after the discoloration, the use of Thermal coating of this feature, Thermal Printer there has been thermal printing technology.