发明授权
- 专利标题： Image forming apparatus
- 专利标题（中）： 图像形成装置
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申请号： US10793849申请日： 2004-03-08
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公开(公告)号： US06978109B2公开(公告)日： 2005-12-20
- 发明人: Hisashi Shoji , Tsukuru Kai , Kei Yasutomi , Nekka Matsuura , Nobutaka Takeuchi , Hirokatsu Suzuki
- 申请人： Hisashi Shoji , Tsukuru Kai , Kei Yasutomi , Nekka Matsuura , Nobutaka Takeuchi , Hirokatsu Suzuki
- 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： Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
- 优先权： JP2000-133628 20000502; JP2000-133629 20000502; JP2000-142342 20000515; JP2000-142344 20000515; JP2000-178923 20000614; JP2000-183567 20000619; JP2000-205494 20000706
- 主分类号： G03G9/10
- IPC分类号： G03G9/10 ; G03G13/09 ; G03G15/09
摘要：
An electrophotographic image forming apparatus of the present invention frees images from various defects including the thinning of horizontal lines, the omission of the trailing edge of an image, background contamination, granularity particular to a halftone image, carrier scattering, and image noise. Further, the apparatus of the present invention solves problems ascribable to patches used to sense image density. Moreover, the apparatus of the present invention faithfully reproduces tonality and has a high developing ability.
公开/授权文献
- US20040175207A1 Image forming apparatus 公开/授权日：2004-09-09
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