发明授权
- 专利标题： Optical-writing control device, image forming apparatus, and method of controlling optical writing device
- 专利标题（中）： 光写控制装置，图像形成装置以及光写入装置的控制方法
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申请号： US14086266申请日： 2013-11-21
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公开(公告)号： US09036198B2公开(公告)日： 2015-05-19
- 发明人: Tatsuya Miyadera , Masayuki Hayashi , Motohiro Kawanabe , Yoshinori Shirasaki , Masatoshi Murakami
- 申请人： Tatsuya Miyadera , Masayuki Hayashi , Motohiro Kawanabe , Yoshinori Shirasaki , Masatoshi Murakami
- 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, McClelland, Maier & Neustadt, L.L.P.
- 优先权： JP2012-262681 20121130
- 主分类号： G06K15/00
- IPC分类号： G06K15/00 ; H04N1/00 ; H04N1/028 ; G03G15/01 ; G03G15/00
摘要：
An optical-writing control device calculates correction values for use in correcting a transfer position at which developing-agent images are to be transferred onto a sheet, and overlaying positions at which the developing-agent images are to be overlaid, based on a detection signal output from a sensor upon detection of a correction pattern for use in correcting the transfer position and a correction pattern for use in correcting the overlaying positions. A timing of detecting the pattern for use in correcting the overlaying positions is determined based on a correction value calculated based on the detection signal output upon detection of the pattern for use in correcting the transfer position. The pattern for use in correcting the transfer position is caused to have a width, in the main-scanning direction, that is wider than the width in the main-scanning direction of the pattern for use in correcting the overlaying positions.
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