Fixing device

Abstract

Abstract PURPOSE:To provide the fixing device where the finished state of the surface of a toner image of low density to that of high density can be made to be an arbitrary state ranging from a mirror-like surface to a very rough surface without having offsetting generated and utilizing none or very little mold release agent. CONSTITUTION:Toner 52 is fixed onto transfer material 51 by providing an endless belt 15 wound around a roll 10 and a carrying roll 14 which is in a position separated for only a specified distance, having a heater for heating provided in at least one of the pair of rolls 10 and 20 and having the transfer material 51 with an unfixed toner image of an electrophotograph passed through this pair of rolls 10 and 20 and a part of the endless belt 15. Then, a pair of pressure rolls 72 and 73 impressing pressure force to the endless belt 15 from the inside and the outside is provided between one of the roll 10 and the carrying roll 14 and furthermore, the device is constituted so that the pressure force of the pair of pressure rolls 72 and 73 can be varied.

Inventors

• 👤 Kazuo Yasuda
• 👤 和夫 安田
• 👤 Tetsuko Oomoto
• 👤 大本　　哲子

Bibliographic Details