发明授权
US08817320B2 Line-head control device, image forming apparatus, and line-head control method
有权
线头控制装置，图像形成装置和线头控制方法
- 专利标题： Line-head control device, image forming apparatus, and line-head control method
- 专利标题（中）： 线头控制装置，图像形成装置和线头控制方法
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申请号： US13300834申请日： 2011-11-21
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公开(公告)号： US08817320B2公开(公告)日： 2014-08-26
- 发明人: Yoshinori Shirasaki , Izumi Kinoshita , Kunihiro Komai , Tatsuya Miyadera , Takeshi Shikama , Takuhei Yokoyama , Akinori Yamaguchi
- 申请人： Yoshinori Shirasaki , Izumi Kinoshita , Kunihiro Komai , Tatsuya Miyadera , Takeshi Shikama , Takuhei Yokoyama , Akinori Yamaguchi
- 申请人地址： JP Tokyo
- 专利权人： Ricoh Company, Limited
- 当前专利权人： Ricoh Company, Limited
- 当前专利权人地址： JP Tokyo
- 代理机构： Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- 优先权： JP2010-281576 20101217
- 主分类号： G06F15/00
- IPC分类号： G06F15/00 ; G06K15/12 ; G06K15/02
摘要：
A line-head control device that controls a line head includes: a calculation unit that divides image data into a plurality of areas in sub-scanning direction and calculates a printing percentage for each of the areas; an allocation unit that allocates a total correction amount, for correcting magnification of the image data in the sub-scanning direction, to the areas according to the printing percentage for each of the areas calculated by the calculation unit; and a control unit that changes an emission period of the light emitted from the line head so as to satisfy a partial correction amount that is an allocation of the total correction amount to each of the areas, exposes the image carrier to the light emitted from the line head with the changed light emission period, thereby causing a latent image to be formed on the image carrier based on the image data.
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