| 摘要 |
A fixing device comprising a fixing roller, support rollers wrapped with a belt, bearings of the support rollers arranged at both ends thereof, pressing plates arranged between the bearings and each having a pair of tilted pressing surfaces that come in contact with the outer circumferential surfaces thereof, and pressing means for pressing the pressing plates toward the axis of the fixing roller. When pressed by the pressing means, the pressing plates press the support rollers toward the axis of the fixing roller via the tilted pressing surfaces and the outer circuferential surfaces of the bearings so that part of the region of the belt in the circumferential direction is press-contacted to part of the region on the outer circuferential surface of the fixing roller and, further, press the support rollers in a direction in which they separate away from each other to impart a tension to the belt.
|
