发明申请
- 专利标题: Image-forming apparatus and image-forming method
- 专利标题(中): 图像形成装置和图像形成方法
-
申请号: US11169787申请日: 2005-06-30
-
公开(公告)号: US20060008286A1公开(公告)日: 2006-01-12
- 发明人: Koji Nihonyanagi , Shinji Hashiguchi
- 申请人: Koji Nihonyanagi , Shinji Hashiguchi
- 申请人地址: JP TOKYO
- 专利权人: CANON KABUSHIKI KAISHA
- 当前专利权人: CANON KABUSHIKI KAISHA
- 当前专利权人地址: JP TOKYO
- 优先权: JP2004-199411 20040706
- 主分类号: G03G15/20
- IPC分类号: G03G15/20
摘要:
In an image-forming apparatus, a temperature sensor is situated in the position where the sensor is insusceptible to steam. The position is, for example, a portion, of a discharge-sensor lever, where a printing material abuts on the discharge-sensor lever. Accordingly, the temperature sensor becomes insusceptible to steam, whereby the image-forming apparatus can more appropriately control the fixing temperature than conventional image-forming apparatuses. In other words, the image-forming apparatus can more reduce the incidence rate of defects, such as increase, due to excess heating, in the amount of hot-offsets and curls, deterioration of loading capacity, and defective fixing due to scarcity of the amount of heat, than the conventional image-forming apparatuses. Moreover, by determining a threshold temperature every time when a printing material passes through a heat-fixing unit, a problem can be alleviated, in which, at the beginning of a series of paper passage, the amount of fluctuation in detected temperature becomes significantly large.
公开/授权文献
- US07298985B2 Image-forming apparatus and image-forming method 公开/授权日:2007-11-20