The manufacturer of the Upper fuser roller tells you that the fuser roller, commonly known as the heating roller, is one of the components of the fuser. General models of copiers have two upper and lower rollers. The interior of the upper roller is mostly hollow and heated by a heating lamp tube. The high-quality fixing roller tube is mostly made of pure aluminum material, and the tube wall is thin, which ensures the effective conduction of heat. The lower roller is commonly known as "cot roller", with a metal component in the middle and a thicker high-temperature resistant silicone rubber on the outside. Not to be confused with drum cartridges.

The upper fuser roller manufacturer tells you that the fuser roller of the copier is the main device for the copier to fuse the copied toner image, and it is the key part of the fuser part of the copier. The upper fuser roller manufacturer tells you that it consists of two parts: the upper fuser roller and the lower fuser roller. The upper fixing roller is located at the upper part of the fixing device, and the high temperature required for fixing is conducted from this part and applied to the toner image on the copy paper.
The manufacturer of the Upper fuser roller tells you that the fuser roller is located in the upper part of the fuser unit, and the high temperature required for fusing is conducted by this part and applied to the toner image on the copy paper. It is an aluminum hollow tube, and its outer layer is coated with a chemical coating film that is resistant to high temperature (generally around 180 degrees). The hollow part is used to install a fixing lamp tube that generates high temperature. Other colors, shiny, with thinner ends, are used for fixing and mounting drive gears. The upper fuser roller manufacturer tells you that most copiers use negative temperature coefficient thermistors. We use the characteristics of the thermistor to detect the temperature of the heat roller and then judge the temperature of the heat roller according to the resistance of the thermistor. A bridge or voltage divider circuit converts the resistance to the corresponding voltage.