- 专利标题: IMAGE FORMING APPARATUS INCORPORATING IMAGE READER
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申请号: US15274366申请日: 2016-09-23
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公开(公告)号: US20170108808A1公开(公告)日: 2017-04-20
- 发明人: Natsumi MATSUE , Akira YOSHIDA , Akio KOSUGE , Yoichi SAKURAI , Yuuichiroh UEMATSU , Keiko MATSUMOTO
- 申请人: Natsumi MATSUE , Akira YOSHIDA , Akio KOSUGE , Yoichi SAKURAI , Yuuichiroh UEMATSU , Keiko MATSUMOTO
- 优先权: JP2015-203034 20151014
- 主分类号: G03G15/00
- IPC分类号: G03G15/00
摘要:
An image forming apparatus includes a rotatable image bearer, a toner image forming device, an image reader, and a control unit. The toner image forming device forms a test toner image on the image bearer. The image reader reads the test toner image and a predetermined reference member. The control unit calculates an amount of toner contained in the test toner image based on image data from the test toner image. Based on image data from the reference member, the control unit selects a position of a pixel to be used for calculation of the amount of toner contained in the test toner image from pixels included in the image data from the reference member, to calculate the amount of toner contained in the test toner image from data of a pixel located at the position thus selected among pixels included in the image data from the test toner image.
公开/授权文献
- US09857745B2 Image forming apparatus incorporating image reader 公开/授权日:2018-01-02