发明名称 Image forming apparatus having a transfer medium detecting means
摘要 An image forming apparatus has a transfer medium detector contact member. The detector serves to detect the passage of a transfer medium by linear movement, swing movement, or like movement of the contact member in contact with a sheet of transfer medium separately fed. The contact member has a contact portion brought into contact with the transfer medium formed of a roller which is held rotatably and is adapted to rotated by the passage of the transfer medium.
申请公布号 US6215965(B1) 申请公布日期 2001.04.10
申请号 US19990385894 申请日期 1999.08.30
申请人 CANON KABUSHIKI KAISHA 发明人 SATO HITOSHI
分类号 B65H7/02;G03G15/00;G03G15/20;(IPC1-7):G03G15/00 主分类号 B65H7/02
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