A flexible heater is a sheet-like device that can be bent and folded to a certain extent and can generate heat when powered on. It has the advantages of high heating efficiency, good heat dissipation, and high surface power density. Because it is coated on an insulating substrate, it can be made into various complex heating devices. In recent years, flexible heaters have been widely used in construction, industry, agriculture, military, household products and other fields to solve heating, defrosting, fogging or heating problems. This paper designed and researched the flexible heater, including simulating the temperature field distribution on the surface of the film heater, designing the layout of the heating conductor, preparing the insulating heat-conducting film and the insulating heat-insulating film, and designing and testing the control system of the film heater. Flexible heater applications The role of flexible heaters in thermal printers is extremely important. Thermal printer is a common printing device that uses the interaction of a heater and thermal paper to produce an image. The main function of the heater is to convert electrical energy into thermal energy, by heating the photosensitive layer on the thermal paper, causing it to undergo a chemical reaction to form an image. https://www.best-heaters.com/flexible-heaters-BLOG/The-Working-Principle-Of-Flexible-Heaters-In-Thermal-Printers.html