1. The interior of the fixing roller is heated by one or more heating lamps (halogen lamps), thereby fixing the characters on the paper.
2. There is a ceramic piece in the fixing film. The ceramic piece is electrically heated and then the text is fixed on the paper through the fixing film. The difference between the two is that the fixing roller consumes a lot of electricity, preheating slowly, preheating for a long time, but its service life is also long, while the fixing film is just the opposite, preheating time is short, and its wear resistance is not as strong as that of the fixing roller, resulting in a short service life.