发明名称 |
Developing device and image forming apparatus including passing developer amount changing mechanism |
摘要 |
A developing device that circulates developer in a circulation passage having first and second conveyance passages, so that the developer is supplied to a developing roller along the first or second conveyance passages, comprising: a first conveyance member in the first conveyance passage driven to rotate to convey the developer in a first conveyance direction; a communicating passage through which the developer flows from the first to second conveyance passages; a second conveyance member in the second conveyance passage driven to rotate to convey the developer in a second conveyance direction; a discharge passage extending from an end portion of the first conveyance passage located downstream in the first conveyance direction; and a passing developer amount changing mechanism configured to change an amount of developer passing through the communicating passage, according to a pressure applied to the developer at a junction between the first conveyance passage and the discharge passage. |
申请公布号 |
US8611797(B2) |
申请公布日期 |
2013.12.17 |
申请号 |
US201113070224 |
申请日期 |
2011.03.23 |
申请人 |
MAEDA OSAMU;TAKAYA SHUNICHI;KONICA MINOLTA BUSINESS TECHNOLOGIES, INC. |
发明人 |
MAEDA OSAMU;TAKAYA SHUNICHI |
分类号 |
G03G15/08 |
主分类号 |
G03G15/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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