Invention Application
- Patent Title: Drum Unit, Development Cartridge Detachably Attachable to the Drum Unit, and Image Forming Apparatus Having the Drum Unit and the Development Cartridge
- Patent Title (中): 鼓单元，可拆卸地连接到鼓单元的开发盒，以及具有鼓单元和显影盒的成像装置
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Application No.: US13070032Application Date: 2011-03-23
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Publication No.: US20110293325A1Publication Date: 2011-12-01
- Inventor: Yasushi OKABE
- Applicant: Yasushi OKABE
- Applicant Address: JP Nagoya
- Assignee: BROTHER KOGYO KABUSHIKI KAISHA
- Current Assignee: BROTHER KOGYO KABUSHIKI KAISHA
- Current Assignee Address: JP Nagoya
- Priority: JP2010-124277 20100531
- Main IPC: G03G21/18
- IPC: G03G21/18 ; G03G15/08
Abstract:
A drum unit is provided, which includes a frame configured such that a development cartridge including a pressed portion is detachably attached thereto, and a pressing member. The development cartridge is movable between a pressed state where the pressed portion is pressed by the pressing member when attached to the frame and a released state where the pressed portion is released from pressing of the pressing member when the development cartridge is attached to the frame. The pressing member includes a pressing section that contacts and presses the pressed portion when the development cartridge is in the pressed state, and a restriction section configured to, when the development cartridge is in the pressing state, restrict movement of the pressed portion in a released direction, in which the pressed portion moves when the development cartridge moves from the pressing state to the released state.
Public/Granted literature
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