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发明授权
CN101604137B 定影装置及图像形成装置 有权

定影装置及图像形成装置
摘要：
本发明提供一种定影装置及图像形成装置。在包括定影辊(50)、加压辊(60)及外部加热部(70)的定影装置(6)中，按照与外部加热带(71)的周面抵接的方式设置刮板(81)，通过刮除该周面上的调色剂等来清洁该周面。而且，通过对外部加热带(71)使用调色剂的吸附性比定影辊(50)的周面高的材料，来剥离定影辊(50)周面上的调色剂等，使定影辊(50)的周面清洁。并且，作为对刮板(81)赋予振动的振动赋予部，设置使外部加热部(70)相对定影辊(50)接触分离的第一接触分离部，由第一接触分离部(95)对刮板(81)赋予振动，使调色剂等从刮板(81)剥离。
摘要（英）：

The invention provides a fixing device and an image forming apparatus. In a fixing device including a fixing roller, a pressure roller and an external heating section, a scraper is arranged to contact a circumferential surface of an external heating belt and scrape toner and the like on the circumferential surface to thereby clean the circumferential surface. In addition, a material that has higher adherence to toner than on a circumferential surface of the fixing roller is used for the external hating belt to thereby peel the toner and the like on the circumferential surface of the fixing roller and clean the circumferential surface of the fixing roller. Further, as a vibration applying section adapted to apply vibration to the scraper, a first contact/separation section adapted to contact/separate the external heating section with/from the fixing roller is provided. Vibration is applied to the scraper by the first contact/separation to peel the toner and the like off the scraper.

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