公开(公告)号：US20230259062A1

公开(公告)日：2023-08-17

申请号：US18306372

申请日：2023-04-25

申请人： CANON KABUSHIKI KAISHA

发明人： HIDEKAZU MATSUDA ,  ARIHIRO YAMAMOTO ,  TOSHIROU UCHIDA ,  KENYA TERADA

IPC分类号： G03G21/00

CPC分类号： G03G21/0017 ,  G03G21/0029 ,  G03G2221/0005

摘要： An electrophotographic cleaning blade comprising: an elastic member containing polyurethane; and a support member supporting the elastic member, and cleaning a surface of a member to be cleaned in motion, by contact of part of the elastic member against the surface of the member to be cleaned, wherein the elastic member has, at least on the tip side, a plate shape having a main surface facing the member to be cleaned and a leading end surface that forms a tip side edge together with the main surface, and a coefficient of variation of area ratios of white regions in each of sections of a binarized image created from grayscale phase image obtained from the leading end surface, is 20.00 or less, and a value of HM1-HM2 is larger than 0.10 N/mm2.