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1. 发明申请

US20150338780A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20150338780A1
公开(公告)日：2015-11-26
申请号：US14718397
申请日：2015-05-21
申请人： CANON KABUSHIKI KAISHA
发明人： Atsushi Matsumoto
IPC分类号： G03G15/09
CPC分类号： G03G15/0907 , G03G15/0818 , G03G15/0921 , G03G15/0928 , G03G2215/0609 , G03G2215/0858 , G03G2215/0861
摘要： An image forming apparatus includes: a developer carrying member (sleeve) including a magnet and grooves; and an image bearing member (drum). The electrostatic image on the drum is developed with a developer. When a linear speed of the sleeve is Vs, a linear speed of the drum is Vd, a peripheral speed ratio of the sleeve to the drum is α=Vs/Vd, a radius of the sleeve is Rs, a radius of the drum is Rd, a distance of a rectilinear line connecting a most upstream point and a most downstream point in the developing region with respect to the circumferential direction is Lnip, a pitch of the grooves of the sleeve is p, and an arbitrary natural number is n, the following relationship is satisfied: (1−0.05)×np≦2[α×Rd×arcsin(Lnip/2Rd)−Rs×arcsin(Lnip/2Rs)]≦(1+0.05)×np.
摘要翻译：图像形成装置包括：包括磁体和凹槽的显影剂承载构件（套筒）; 和图像承载部件（鼓）。用显影剂显影鼓上的静电图像。当套筒的线速度为Vs时，滚筒的线速度为Vd，套筒与滚筒的圆周速度比为α= Vs / Vd，套筒的半径为Rs，滚筒的半径为 Rd，连接显影区域中相对于圆周方向的最上游点和最下游点的直线的距离为Lnip，套筒的槽的间距为p，任意的自然数为n，满足以下关系：（1-0.05）×np＆nlE; 2 [α×Rd×arcsin（Lnip / 2Rd）-Rs×arcsin（Lnip / 2Rs）]＆nlE;（1 + 0.05）×np。

2. 发明授权

US06312792B1 Electrically conductive member and image-forming apparatus 失效
标题翻译：导电构件和成像装置
公开(公告)号：US06312792B1
公开(公告)日：2001-11-06
申请号：US09328596
申请日：1999-06-10
申请人： Tokuo Okada , Koji Takagi , Hiroshi Kaneda , Toshiaki Arai , Takahiro Kawagoe
发明人： Tokuo Okada , Koji Takagi , Hiroshi Kaneda , Toshiaki Arai , Takahiro Kawagoe
IPC分类号： B32B702
CPC分类号： G03G15/1685 , C08G18/10 , C08G18/5024 , C09D175/02 , G03G5/10 , G03G5/105 , G03G5/14765 , G03G5/14769 , G03G15/0233 , G03G15/0818 , G03G15/162 , G03G2215/0858 , Y10T428/26 , Y10T428/31504 , Y10T428/31547 , Y10T428/31551 , Y10T428/31569 , Y10T428/31576 , Y10T428/31583 , Y10T428/31587 , Y10T428/31605 , C08G18/6674
摘要： An electrically conductive member comprising an electrically conductive elastic layer and a coating layer formed thereon, characterized in that said coating layer is formed from a polyurea resin as a cured product resulting from reaction between a polyamine compound and a polyisocyanate compound. It has a coating layer which readily conforms to elastic deformation of rubber or the likes, has long durability, and has good properties in protection of the photosensitive body from staining and prevention of toner sticking, control of the toner charging and a low coefficient of friction.
摘要翻译：一种导电构件，包括导电弹性层和形成在其上的涂层，其特征在于，所述涂层由作为由多胺化合物和多异氰酸酯化合物之间的反应产生的固化产物的聚脲树脂形成。它具有容易符合橡胶等的弹性变形的涂层，具有长的耐久性，并且具有良好的保护感光体的性能，防止着色和防止调色剂粘附，调色剂充电的控制和低摩擦系数。

3. 发明授权

US10635019B2 Developing roller, electrophotographic process cartridge and electrophotographic image forming apparatus 有权
公开(公告)号：US10635019B2
公开(公告)日：2020-04-28
申请号：US16540463
申请日：2019-08-14
申请人： CANON KABUSHIKI KAISHA
发明人： Noriyuki Doi , Ryo Sugiyama , Minoru Nakamura , Seiji Tsuru
IPC分类号： G03G15/08
CPC分类号： G03G15/0808 , G03G15/0818 , G03G2215/0617 , G03G2215/0858 , G03G2215/0861
摘要： Provided is a developing roller comprising an electroconductive substrate and an electroconductive layer thereon, the electroconductive layer retaining resin particles so that at least a part of each of the resin particles is exposed on an outer surface of the developing roller; the outer surface of the developing roller constituted by electrically insulating domains and an electroconductive matrix, assuming that a square region 200-μm in a side is put on the outer surface of the developing roller, the square region including the domains, among the domains in the square region at least two of them satisfying specific condition, and assuming that the outer surface of the developing roller is charged, and creating a potential map of the charged outer surface of the developing member, the two domains satisfying the specific condition being ascertained in the potential map.

4. 发明授权

US06410637B1 Water-based composition for coating a donor member 有权
标题翻译：用于涂覆供体构件的水基组合物
公开(公告)号：US06410637B1
公开(公告)日：2002-06-25
申请号：US09722347
申请日：2000-11-28
申请人： Peter G. Odell , Richard D. Hunt , Thomas Thomson , Yvonne J. M. Groot , Jas Paul S. Dhillon , Michael F. Zona
发明人： Peter G. Odell , Richard D. Hunt , Thomas Thomson , Yvonne J. M. Groot , Jas Paul S. Dhillon , Michael F. Zona
IPC分类号： C08K304
CPC分类号： G03G15/0818 , C08L61/06 , C09D161/06 , G03G2215/0855 , G03G2215/0858 , G03G2215/0863 , Y10T428/31942 , C08L2666/04
摘要： A waterborne coating composition for application to a donor member surface includes a resin binder, a conductive particle material, an additional particle material of either (1) graphite particles with a dispersant of polyacrylamide, polyethylene oxide, polyvinyl alcohol or mixtures thereof or (2) crosslinked polymer particles, and water. The waterborne coating composition exhibits superior stability and achieves suitable properties when coated upon a donor member surface, thereby permitting practical replacement of volatile organic components typically used in donor member coating compositions.
摘要翻译：用于施用于供体构件表面的水性涂料组合物包括树脂粘合剂，导电颗粒材料，（1）具有聚丙烯酰胺分散剂的石墨颗粒，聚环氧乙烷，聚乙烯醇或其混合物的附加颗粒材料，或（2）交联聚合物颗粒和水。水性涂料组合物表现出优异的稳定性，并且当涂覆在供体构件表面上时可获得合适的性能，从而允许实际替代通常用于供体构件涂料组合物中的挥发性有机组分。

5. 发明授权

US11650516B2 Developing apparatus, electrophotography process cartridge, and electrophotographic image forming apparatus 有权
公开(公告)号：US11650516B2
公开(公告)日：2023-05-16
申请号：US17659418
申请日：2022-04-15
申请人： CANON KABUSHIKI KAISHA
发明人： Tomoya Uesugi , Kazuaki Nagaoka , Toru Ishii , Ryo Sugiyama , Akio Nishi , Kentaro Yamawaki , Minoru Nakamura
IPC分类号： G03G15/08
CPC分类号： G03G15/0818 , G03G15/0806 , G03G15/0808 , G03G2215/0858 , G03G2215/0861
摘要： Provided is a developing device including: a toner; and a developer carrying member. The developer carrying member includes an electroconductive substrate and a surface layer on the substrate, the surface layer being a single layer and including a matrix containing a crosslinked urethane resin as a binder, wherein E1 ≥200 MPa and 10 MPa≤E2 ≤100 MPa, where E1 is an elastic modulus of the matrix in a first region from an outer surface of the surface layer to a depth of 0.1 and E2 is an elastic modulus of the matrix in a second region from a depth of 1.0 to 1.1 μm from the outer surface. The toner includes a toner particle containing a binder resin and a colorant and having a Martens hardness of 85 to 1,100 MPa when measured under a condition of a maximum load of 2.0×10−4 N.

6. 发明授权

US09250573B2 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US09250573B2
公开(公告)日：2016-02-02
申请号：US14718397
申请日：2015-05-21
申请人： CANON KABUSHIKI KAISHA
发明人： Atsushi Matsumoto
IPC分类号： G03G15/08 , G03G15/09
CPC分类号： G03G15/0907 , G03G15/0818 , G03G15/0921 , G03G15/0928 , G03G2215/0609 , G03G2215/0858 , G03G2215/0861
摘要： An image forming apparatus includes: a developer carrying member (sleeve) including a magnet and grooves; and an image bearing member (drum). The electrostatic image on the drum is developed with a developer. When a linear speed of the sleeve is Vs, a linear speed of the drum is Vd, a peripheral speed ratio of the sleeve to the drum is α=Vs/Vd, a radius of the sleeve is Rs, a radius of the drum is Rd, a distance of a rectilinear line connecting a most upstream point and a most downstream point in the developing region with respect to the circumferential direction is Lnip, a pitch of the grooves of the sleeve is p, and an arbitrary natural number is n, the following relationship is satisfied: (1−0.05)×np≦2[α×Rd×arcsin(Lnip/2Rd)−Rs×arcsin(Lnip/2Rs)]≦(1+0.05)×np.
摘要翻译：图像形成装置包括：包括磁体和凹槽的显影剂承载构件（套筒）; 和图像承载部件（鼓）。用显影剂显影鼓上的静电图像。当套筒的线速度为Vs时，滚筒的线速度为Vd，套筒与滚筒的圆周速度比为α= Vs / Vd，套筒的半径为Rs，滚筒的半径为 Rd，连接显影区域中相对于圆周方向的最上游点和最下游点的直线的距离为Lnip，套筒的槽的间距为p，任意的自然数为n，满足以下关系：（1-0.05）×np＆nlE; 2 [α×Rd×arcsin（Lnip / 2Rd）-Rs×arcsin（Lnip / 2Rs）]＆nlE;（1 + 0.05）×np。

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