发明名称 |
Development device, process cartridge, and image forming apparatus |
摘要 |
A development device includes a developer storage chamber configured to store a developer, a developer carrying member configured to carry the developer, a light transmission member capable of transmitting detection light for detecting a remaining amount of a developer in the developer storage chamber, a shaft member which is provided to the developer storage chamber and configured to rotate, a conveyance unit which is provided to the shaft member and configured to convey the developer, and a cleaning unit which is provided to the shaft member and configured to rub and clean the light transmission member, wherein the shaft member includes an opening. |
申请公布号 |
US9063507(B2) |
申请公布日期 |
2015.06.23 |
申请号 |
US201314035127 |
申请日期 |
2013.09.24 |
申请人 |
Canon Kabushiki Kaisha |
发明人 |
Gofuku Shuichi;Fukasawa Yu;Shimizu Hiroki |
分类号 |
G03G15/08;G03G21/00 |
主分类号 |
G03G15/08 |
代理机构 |
Canon USA Inc IP Division |
代理人 |
Canon USA Inc IP Division |
主权项 |
1. A development device comprising:
a developer storage chamber configured to store a developer; a developer carrying member configured to carry the developer to develop an electrostatic latent image; a light transmission member for transmitting detection light for detecting a remaining amount of a developer in the developer storage chamber; a shaft member that is provided to the developer storage chamber and configured to rotate; a conveyance unit that is provided to the shaft member and configured to convey the developer; and a cleaning unit that is attached to the shaft member and configured to clean the light transmission member, wherein the shaft member includes an opening at a position on an upstream side of the conveyance unit and on a downstream side of the cleaning unit in a rotational direction of the shaft member. |
地址 |
Tokyo JP |