发明名称 IMAGE FORMING APPARATUS
摘要 An image forming apparatus includes: an image bearing member; a transfer member; and a contact-and-separation portion. The contact-and-separation means includes: an urging member; a movement driving portion; and a controller for controlling the movement driving portion so that the transfer member is locatable at a contact position where the transfer member is contacted to the image bearing member, a first spaced position where the transfer member is spaced from the image bearing member in a state in which a load by the urging force is exerted on the movement driving portion, and a second spaced position where the transfer member is spaced from the image bearing member in a state in which the load by the urging force is not exerted on the movement driving portion.
申请公布号 US2013287438(A1) 申请公布日期 2013.10.31
申请号 US201313866236 申请日期 2013.04.19
申请人 CANON KABUSHIKI KAISHA 发明人 TAOKA KEITARO
分类号 G03G15/16 主分类号 G03G15/16
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