发明申请
US20070229648A1 EXPOSURE DEVICE AND IMAGE FORMING APPARATUS USING THE SAME
审中-公开
曝光装置和使用该曝光装置的图像形成装置
- 专利标题: EXPOSURE DEVICE AND IMAGE FORMING APPARATUS USING THE SAME
- 专利标题(中): 曝光装置和使用该曝光装置的图像形成装置
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申请号: US11693189申请日: 2007-03-29
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公开(公告)号: US20070229648A1公开(公告)日: 2007-10-04
- 发明人: Kenichi Masumoto , Hiroshi Shirouzu , Tetsurou Nakamura , Kei Sakanoue , Yuuji Toyomura
- 申请人: Kenichi Masumoto , Hiroshi Shirouzu , Tetsurou Nakamura , Kei Sakanoue , Yuuji Toyomura
- 申请人地址: JP Osaka
- 专利权人: Matsushita Electric Industrial Co., Ltd.
- 当前专利权人: Matsushita Electric Industrial Co., Ltd.
- 当前专利权人地址: JP Osaka
- 优先权: JP2006-100412 20060331; JP2006-100413 20060331; JP2006-100414 20060331; JP2006-100415 20060331
- 主分类号: B41J2/45
- IPC分类号: B41J2/45
摘要:
To provide an exposure device which is capable of controlling light intensity with high precision by improving reliability of light intensity detection, and an image forming apparatus using the same, an exposure device includes a light emitting device array having a plurality of organic electroluminescence devices 110 arranged on a substrate, a light detecting device 120 that detects light emitted from the organic electroluminescence devices 110, and a light intensity detecting circuit C that processes an output of the light detecting device 120. The light intensity detecting unit C includes a capacitive element 140 connected to the light detecting device 120 and a select transistor 130 that is connected to the capacitive element 140 and draws out charges accumulated in the capacitive element 140. The select transistor 130 and the light detecting device 120 are isolated from each other with the capacitive element 140 interposed therebetween.