| abstract |
(57) [Summary] [Purpose] To obtain a stable product hardness without variation in hardness in a fixing roller having a surface coated with a fluororesin sleeve and a lower layer having a low hardness silicone rubber layer. [Structure] As the silicone rubber used for the rubber layer 3, Its hardness is controlled by Asker C hardness tester, and its range is 23 It is characterized by the use of silicone rubber that is ~ 40 degrees. |