| 摘要 |
PROBLEM TO BE SOLVED: To provide a fixing device capable of preventing the deterioration of an image caused by the soiling of a recording material by uniformizing abutting pressure between a pressuring means and a cleaning means, thereby obtaining excellent cleaning performance all over the area in the longitudinal direction. SOLUTION: This fixing device is provided with a heating means 100, a pressure roller (pressuring means) 9 constituted of a roller body press-contacting with the means 100, and a cleaning roller (cleaning means) 13 constituted of a roller body coming in contact with the roller 9. In the device, the roller 9 is formed in inverted crown shape that its diameter is the smallest at the almost center part in the longitudinal direction, gets larger and larger toward the ends in the longitudinal direction from the smallest part and is the largest at the ends in the longitudinal direction. Then, the roller 13 is formed in crown shape that its diameter is the largest at the almost center part in the longitudinal direction, gets smaller and smaller toward the ends in the longitudinal direction from the largest part and is the smallest at the ends in the longitudinal direction.
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