发明申请
US20060018674A1 Method and device for estimating toner concentration and image forming apparatus equipped with such device
有权
用于估计调色剂浓度的方法和装置以及配备有这种装置的成像装置
- 专利标题： Method and device for estimating toner concentration and image forming apparatus equipped with such device
- 专利标题（中）： 用于估计调色剂浓度的方法和装置以及配备有这种装置的成像装置
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申请号： US11008605申请日： 2004-12-10
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公开(公告)号： US20060018674A1公开(公告)日： 2006-01-26
- 发明人: Katsuyuki Hirata , Tetsuya Sakai , Tatsuya Isono , Hironori Akashi , Toshio Tsuboi , Takashi Harashima , Masaki Tanaka
- 申请人： Katsuyuki Hirata , Tetsuya Sakai , Tatsuya Isono , Hironori Akashi , Toshio Tsuboi , Takashi Harashima , Masaki Tanaka
- 申请人地址： JP Chiyoda-ku 100-0005
- 专利权人： Konica Minolta Business Technologies, Inc.
- 当前专利权人： Konica Minolta Business Technologies, Inc.
- 当前专利权人地址： JP Chiyoda-ku 100-0005
- 优先权： JP2004-215848 20040723
- 主分类号： G03G15/08
- IPC分类号： G03G15/08
摘要：
A method and device for estimating toner concentration in a two-component developer consisting of toner and carrier for an electrophotographic image forming apparatus, and an image forming apparatus equipped with such device. The above method and device calculate an amount of toner charge from data detected by a transferred toner amount sensor, compensate the toner charge based on environmental humidity data and cumulative use period data of the image forming apparatus, and estimate toner concentration. The image forming apparatus equipped with the above device exerts control to predict toner consumption from the estimated toner concentration, supply toner to a developing unit according to the predicted toner consumption, and maintain the toner concentration in the developer at predetermined concentration.