发明授权
US08681390B2 Optical scanner, image forming apparatus, and buffer control method for optical scanner
失效
光学扫描仪，图像形成装置和光学扫描仪的缓冲器控制方法
- 专利标题： Optical scanner, image forming apparatus, and buffer control method for optical scanner
- 专利标题（中）： 光学扫描仪，图像形成装置和光学扫描仪的缓冲器控制方法
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申请号： US13462029申请日： 2012-05-02
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公开(公告)号： US08681390B2公开(公告)日： 2014-03-25
- 发明人: Motoyoshi Takahashi , Masayuki Hayashi , Hiroaki Ikeda , Kunihiro Komai , Yoshinori Shirasaki , Fuminori Tsuchiya , Akinori Yamaguchi , Tatsuya Miyadera
- 申请人： Motoyoshi Takahashi , Masayuki Hayashi , Hiroaki Ikeda , Kunihiro Komai , Yoshinori Shirasaki , Fuminori Tsuchiya , Akinori Yamaguchi , Tatsuya Miyadera
- 申请人地址： JP Tokyo
- 专利权人： Ricoh Company, Ltd.
- 当前专利权人： Ricoh Company, Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： IPUSA, PLLC
- 优先权： JP2011-106997 20110512
- 主分类号： H04N1/40
- IPC分类号： H04N1/40
摘要：
In an optical scanner, when an emission control unit varies a period at which image data is output from an output buffer of the emission control unit in order to correct a sub scan magnification of a LED array and a vacant region of an input buffer of the emission control unit ceases to exist, a buffer control unit temporarily stores the image data in a vacant region of a memory of an image correcting unit, and transfers the image data temporarily stored in the memory to the input buffer when the vacant region is generated in the input buffer.
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