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1. 发明申请

US20090154945A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20090154945A1
公开(公告)日：2009-06-18
申请号：US12334626
申请日：2008-12-15
申请人： Norio TOMITA , Hiroshi TACHIKI , Takahiko YOSHIDA , Yoshikazu HARADA , Yoshiteru KIKUCHI , Kenichi ISOMI
发明人： Norio TOMITA , Hiroshi TACHIKI , Takahiko YOSHIDA , Yoshikazu HARADA , Yoshiteru KIKUCHI , Kenichi ISOMI
IPC分类号： G03G15/00
CPC分类号： G03G15/1605 , G03G21/1623 , G03G21/1647 , G03G21/168 , G03G2215/0158 , G03G2221/1648 , G03G2221/169
摘要： In an embodiment of the present invention, an image forming apparatus includes a transfer belt that primarily transfers a toner image formed on a photosensitive drum; a secondary transfer unit including a transfer mechanism portion that secondarily transfers the primarily transferred toner image to a paper; an optical sensor that detects a reference toner image on the transfer belt; and a shutter that protects a detection face of the optical sensor, wherein a separation/contact mechanism portion disposed so as to be brought into contact with both of the shutter and the secondary transfer unit is provided, and the separation/contact mechanism portion allows the shutter to move so as to open and allows the secondary transfer unit to move so as to separate from the transfer belt when the reference toner image is detected by the optical sensor, and allows the shutter to move so as to separate from the transfer belt when the secondary transfer unit is drawn out from an apparatus main body.
摘要翻译：在本发明的一个实施例中，图像形成装置包括主要传送形成在感光鼓上的调色剂图像的转印带; 二次转印单元，其包括二次将主要转印的调色剂图像转印到纸张上的转印机构部分; 检测转印带上的基准调色剂图像的光学传感器; 以及保护所述光学传感器的检测面的快门，其中设置有与所述挡板和所述二次转印单元接触的分离/接触机构部分，并且所述分离/接触机构部分允许快门移动以便打开并且允许二次转印单元移动以便当由光学传感器检测到参考调色剂图像时与转印带分离，并且允许快门移动以便与转印带分离，当二次转印单元从装置主体中抽出。

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