公开(公告)号：US06769681B2

公开(公告)日：2004-08-03

申请号：US10241526

申请日：2002-09-12

申请人： Nobuyuki Nakamura ,  Masahiro Someda

发明人： Nobuyuki Nakamura ,  Masahiro Someda

IPC分类号： B65H100

CPC分类号： B65H1/00 ,  B65H2511/10 ,  B65H2511/51 ,  B65H2220/01

摘要： A paper feed cassette having a size detection function has a paper stage formed integrally with a rear end restricting plate for restricting the rear end of paper sheets. On the bottom of the paper stage, a plurality of rib-like detection targets are arranged in the paper feed direction. The detection targets are detected by a plurality of detection switches arranged in the paper feed direction in a paper feed portion inside the main body of an image forming apparatus. A discriminator receives the detection signals from the detection switches and thereby recognizes the paper size and the presence/absence of the paper feed cassette.

摘要翻译： 具有尺寸检测功能的进纸盒具有与用于限制纸张后端的后端限制板一体形成的纸台。 在纸张台的底部，沿供纸方向布置多个肋状检测对象。 通过在图像形成装置的主体内部的供纸部中沿纸张供给方向布置的多个检测开关来检测检测对象。 识别器从检测开关接收检测信号，从而识别纸张尺寸和供纸盒的存在/不存在。