发明授权
US06381419B1 Image forming apparatus with developer density and developer remaining amount detection features
有权
具有显影剂密度和显影剂剩余量检测特征的图像形成装置
- 专利标题： Image forming apparatus with developer density and developer remaining amount detection features
- 专利标题（中）： 具有显影剂密度和显影剂剩余量检测特征的图像形成装置
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申请号： US09588735申请日： 2000-06-07
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公开(公告)号： US06381419B1公开(公告)日： 2002-04-30
- 发明人: Masahide Kinoshita , Koichi Hiroshima , Hironobu Isobe , Ryuichi Yoshizawa
- 申请人： Masahide Kinoshita , Koichi Hiroshima , Hironobu Isobe , Ryuichi Yoshizawa
- 优先权： JP11-163669 19990610
- 主分类号： G03G1508
- IPC分类号： G03G1508
摘要：
An image forming apparatus has a developing device for developing an electrostatic image formed on an image bearing member by a developer. A developer supplying unit is detachably attachable to a main body of the image forming apparatus and supplies the developer to the developing device. A density detecting device detects a density of the developer in the developing device. A developer remaining amount detecting device detects information regarding an amount of the developer in the developing supplying unit. A state of the developer supplying unit is judged on the basis of a result of the detection by the density detecting device and a result of the detection by the second detecting device.