发明授权
- 专利标题： Image forming apparatus having toner depletion detection feature
- 专利标题（中）： 具有调色剂耗尽检测特征的图像形成装置
-
申请号： US242851申请日： 1994-05-16
-
公开(公告)号： US5471284A公开(公告)日： 1995-11-28
- 发明人: Haruo Fujii , Tatsuya Kobayashi , Nobuhiro Imai , Hisayoshi Kojima , Masao Umezawa , Hideki Tada , Akira Ito , Kaoru Seto , Motoi Katoh , Daisuke Murata
- 申请人： Haruo Fujii , Tatsuya Kobayashi , Nobuhiro Imai , Hisayoshi Kojima , Masao Umezawa , Hideki Tada , Akira Ito , Kaoru Seto , Motoi Katoh , Daisuke Murata
- 申请人地址： JPX Tokyo
- 专利权人： Canon Kabushiki Kaisha
- 当前专利权人： Canon Kabushiki Kaisha
- 当前专利权人地址： JPX Tokyo
- 主分类号： G03G21/16
- IPC分类号： G03G21/16 ; G03G21/18 ; G03G13/00
摘要：
An image forming apparatus usable with a process cartridge for forming an image on a recording material. The process cartridge includes an image bearing member, and at least one developing device for developing a latent image formed on the image bearing member with a developer. Each of said at least one developing devices includes a developer accommodating device for accommodating a respective developer to be used in said at least one developing device. The image forming apparatus includes a mounting device for mounting the process cartridge, an auxiliary developing device exterior to the process cartridge for developing a latent image formed on the image bearing member with a developer, the auxiliary developing device including an auxiliary developer accommodating device for accommodating the developer to be used in the auxiliary developing device, and a detecting device for detecting a respective predetermined level of developer in the auxiliary developer accommodating device and in each of the respective developer accommodating devices of said at least one developing device.
公开/授权文献
- US4376074A Imidazodiazepines and processes therefor 公开/授权日：1983-03-08
信息查询
