发明名称 Copying paper feed sensing device for a copying apparatus
摘要 A device for sensing feeding of copying papers, which may promptly detect paper jamming and misfeeding occurring at a paper feed route of a copying apparatus, such as a laser printer or a copier, thereby preventing pollution by toner or damage of the apparatus. To this end, the device comprises a ratatable actuator of a circular disk shape having a plurality of slits, a first sensor disposed outwardly of the actuator to sense a paper feed condition, and a second sensor disposed outwardly of the actuator to sense the presence and absence of the paper, whereby both the actual feed state and feed distance of the paper may be promptly detected during feeding of the papers.
申请公布号 US5204726(A) 申请公布日期 1993.04.20
申请号 US19910787093 申请日期 1991.11.04
申请人 CHOI, HOON B. 发明人 CHOI, HOON B.
分类号 B41J11/42;B41J13/00;B41J29/48;B65H7/06;B65H7/14;G03G15/00 主分类号 B41J11/42
代理机构 代理人
主权项
地址