发明名称 Image forming apparatus
摘要 In a case where a belt unit is not attached to an apparatus body, when an opening and closing member is closed against the apparatus body, a switching member cannot press a switch, and image formation operation is prohibited. In a case where the belt unit is attached to the apparatus body, when the opening and closing member is closed against the apparatus body, the switching member presses the switch, and the prohibition of the image formation is released.
申请公布号 US9377748(B2) 申请公布日期 2016.06.28
申请号 US201514694870 申请日期 2015.04.23
申请人 Canon Kabushiki Kaisha 发明人 Goto Joji;Imaizumi Chikara;Suzuki Kazushi
分类号 G03G21/16;B65H43/00;B65H85/00 主分类号 G03G21/16
代理机构 Canon USA, Inc., IP Division 代理人 Canon USA, Inc., IP Division
主权项 1. An image forming apparatus configured to form an image onto a recording material, the image forming apparatus comprising: a belt unit having a belt contacting the recording material; an opening and closing member openable and closable against an apparatus body; a switch configured to switch a state where image formation operation is prohibited and a state where the prohibition is released; a switching member capable of pressing the switch, the switching member being provided on the opening and closing member; and a moving member movably held on the opening and closing member, wherein the image formation operation prohibited state is switched by pressing the switch and releasing the pressing by the switching member, wherein the pressing of the switch by the switching member is released and the image formation operation is prohibited when the opening and closing member is opened against the apparatus body, wherein the belt unit can be detached and attached to the apparatus body when the opening and closing member is opened against the apparatus body, wherein the moving member is positioned at a first position or a second position different from the first position relative to the opening and closing member when the opening and closing member is closed, depending on whether the belt unit is attached or not attached to the apparatus body, wherein when the opening and closing member is closed against the apparatus body in a case where the belt unit is not attached to the apparatus body, the moving member is positioned at the first position, the switching member cannot press the switch by causing the moving member to contact the apparatus body, and the image formation operation is prohibited, and wherein when the opening and closing member is closed against the apparatus body in a case where the belt unit is attached to the apparatus body, the moving member is positioned at the second position, the switching member presses the switch and the prohibition of the image formation operation is released.
地址 Tokyo JP