The manufacturer of the upper fuser roller tells you that the general type of copier has two upper and lower rollers. The interior of the upper roller is mostly hollow and heated by a heating lamp tube. Efficient 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.

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. It consists of two parts: the upper fixing roller and the lower fixing roller.
The Upper fuser roller is located at the upper part of the fuser unit, and the high temperature required for fusing is conducted from 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 middle of the fixing lower roller is a steel solid roller, and most of the middle (corresponding to the fixing upper roller) is covered with a rubber layer with a thickness of about 0.8CM, which is generally red. 80 degrees) of the chemical film. The manufacturer of the upper fuser roller tells you that its main function is to put pressure on the upper fuser roller, and it has no drive itself. The power of its rotation comes from the friction of the upper fixing roller, and the rotation of it and the upper fixing roller can fix the copy toner image through high temperature and send it to the output tray of the copier.