| 发明名称 | Cleaning blade, process cartridge, and electrophotographic apparatus | ||
| 摘要 | A cleaning blade includes an image region and a non-image region in which Young's moduli at positions separated by a distance of L μm from an edge portion in contact with an photosensitive drum are respectively defined as YL and Y′L, Y0 and Y′0 are 10 mgf/μm2 or more and 400 mgf/μm2 or less, Y50/Y0 is 0.5 or less, [{(Y0−Y20)/Y0}/(20−0)] is equal to or more than [{(Y20−Y50)/Y0}/(50−20)] and, the Young's modulus Y50 ≦the Young's modulus Y′L where L satisfies 0≦L ≦100 μm. | ||
| 申请公布号 | US9541887(B2) | 申请公布日期 | 2017.01.10 |
| 申请号 | US201514921958 | 申请日期 | 2015.10.23 |
| 申请人 | Canon Kabushiki Kaisha | 发明人 | Nakajima Masanobu;Kubo Norihiko;Hisakuni Hisataka;Kawada Masaya;Karashima Kenji |
| 分类号 | G03G21/00 | 主分类号 | G03G21/00 |
| 代理机构 | Canon U.S.A. Inc., IP Division | 代理人 | Canon U.S.A. Inc., IP Division |
| 主权项 | 1. A cleaning blade that is formed of urethane rubber and is in contact with an image-carrying member carrying a toner image to clean the image-carrying member, the cleaning blade comprising: a first surface that faces the image-carrying member and is orthogonal to a thickness direction of the cleaning blade; and a second surface that forms, together with the first surface, an edge portion that is in contact with the image-carrying member, wherein at least a portion of the second surface is cured so as to satisfy relationships below: 10 mgf/μm2≦Y0≦400 mgf/μm2 0<Y50/Y0≦0.5{(Y20−Y50)/Y0}/(50−20)≦{(Y0−Y20)/Y0}/(20−0)10 mgf/μm2≦Y′0≦400 mgf/μm2 Y50≦Y′L where with respect to all Ls satisfying 0≦L≦100 μm where Y0: Young's modulus of the edge portion in a region of the second surface, the region corresponding to an image-forming region in which an image is formed in the image-carrying member in a direction orthogonal to a direction that the image-carrying member conveys a toner image Y50: Young's modulus at a position 50 μm separated from the edge portion in a region of the second surface, the region corresponding to the image-forming region Y20: Young's modulus at a position 20 μm separated from the edge portion in a region of the second surface, the region corresponding to the image-forming region Y′0: Young's modulus of the edge portion in a region of the second surface, the region is in an edge portion side than the image-forming region and corresponding to a non-image-forming region in which no image is formed in the image-carrying member in a direction orthogonal to a direction that the image-carrying member conveys a toner image L: distance from the edge portion of the second surface Y′L: Young's modulus at a position L μm separated from the edge portion in a region of the second surface, the region corresponding to the non-image-forming region. | ||
| 地址 | Tokyo JP | ||