Fuser film is a film of special high-temperature resistant material used for fusing by copiers or printers during copying or printing; fusing is the process of fixing the unstable and erasable toner images on copy paper on the paper, usually through the fusing component. After heating, the toner is melted, and then penetrates into the deep layer of the paper fiber, which is the effect of copying or printing.

The apparent properties of Fuser film:
The apparent performance plays a very important role in the use of Fuser film. Common apparent defects are:
1. Serious uneven thickness, if the thickness is uneven along the circumferential direction, it will cause the too thick place to be not fixed firmly, and the too thin place will be easily damaged; if it is along the busbar direction, it will cause Fuser The film moves to the thick side of the film body, causing damage to the Fuser film;
2. The smoothness of the surface coating is not enough. If there are a lot of orange peel lines, the adhesion between the Fuser film and the lower roller is not good, which will cause defects such as reduced fixing firmness and reduced quality of fine graphic printing;
3. Apparently adhering particles, pits, pinholes, missing coating, serious creases, these kinds of defects are slightly larger in size. Defects that cannot be transferred or fixed firmly.