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公开(公告)号：US20230305417A1
公开(公告)日：2023-09-28
申请号：US18155070
申请日：2023-01-17
Applicant: FUJIFILM Business Innovation Corp.
Inventor： Yasuko TORII , Yosuke TSURUMI , Soichiro ARAI
CPC classification number: G03G9/09725 , G03G9/09708 , G03G9/0819 , G03G9/0827 , G03G9/0823 , G03G9/0825 , G03G15/0865 , G03G15/02
Abstract: An electrostatic charge image developing toner contains toner particles, silica particles (A) that are added to an exterior of the toner particles and contain a nitrogen element-containing compound containing a molybdenum element, and inorganic particles (B) that are added to the exterior of the toner particles and other than the silica particles (A), in which in the silica particles (A), a ratio NMo/NSi of Net intensity NMo of the molybdenum element measured by X-ray fluorescence analysis to Net intensity NSi of a silicon element measured by X-ray fluorescence analysis is 0.035 or more and 0.45 or less, and an average primary particle size of the inorganic particles (B) is 10 nm or more and 80 nm or less.
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公开(公告)号：US20190072872A1
公开(公告)日：2019-03-07
申请号：US15946278
申请日：2018-04-05
Applicant: FUJI XEROX CO., LTD.
Inventor： Yasuhiko KINUTA
IPC: B41J2/385
CPC classification number: G03G15/0409 , G03G15/02 , G03G15/0216 , G03G2215/0409
Abstract: An image forming apparatus includes an image holding member, a charging device that charges a surface of the image holding member and includes a charging member disposed in contact with the surface of the image holding member, an exposure device that forms a latent image by exposing the charged surface, a developing device that forms a toner image by developing the latent image with toner, and a transfer device that transfers the toner image formed to a recording medium. An amplitude Af with a period Lf (mm) satisfying the formula (F−5)≤(V/L)≤(F+5) is 0.80 μm or less where F is the natural frequency (Hz) of the exposure device, V is the rotational peripheral velocity (mm/s) of the charging member, and L is the period (mm) in analysis of the circumferential direction period of the surface shape of the charging member.
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公开(公告)号：US10018935B2
公开(公告)日：2018-07-10
申请号：US15488896
申请日：2017-04-17
Applicant: Sumitomo Riko Company Limited
Inventor： Masanori Ishida , Takayuki Ootani , Kunio Ito , Keisuke Tokoro
CPC classification number: G03G15/0233 , C08K3/04 , C08K5/134 , C08K5/19 , C08K2201/001 , C08L21/00 , C08L101/00 , F16C13/00 , F16C2208/60 , F16C2208/90 , F16C2370/38 , G03G15/00 , G03G15/02 , G03G15/0808 , G03G15/0818 , G03G15/162 , G03G15/1685 , G03G15/2057
Abstract: To provide a conductive member for an electrophotographic machine that is capable of preventing hardening degradation of a surface layer that is caused by an ionic conductive agent contained in a conductive rubber elastic body layer, allowing the surface layer to be improved in durability.A conductive member 10 for an electrophotographic machine includes a conductive rubber elastic body layer 14 containing crosslinked rubber and an ionic conductive agent, and a surface layer 16 provided on an outer periphery of the conductive rubber elastic body layer 14, wherein the surface layer 16 contains a polymer and polyphenol. Examples of the polyphenol include a tannin, gallic acid, ellagic acid, pyrogallol, catechin, and chlorogenic acid.
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公开(公告)号：US20170371290A1
公开(公告)日：2017-12-28
申请号：US15622376
申请日：2017-06-14
Applicant: CANON KABUSHIKI KAISHA
Inventor： Yuri Mori , Seiji Hara , Mineto Yagyu
Abstract: A power transmission apparatus includes a first pulley and a second pulley. A belt is extended around them. A supply unit supplies a voltage such that the first pulley and the belt are electrostatically attracted and that the second pulley and the belt are electrostatically attracted. The belt includes a conductor layer. At least one pulley includes a first electrode to which a first voltage is applied and a second electrode that is insulated from the first electrode and to which a second voltage is applied. An insulating layer or a dielectric layer is arranged between the conductor layer of the belt and the first electrode of the at least one pulley and an insulating layer or a dielectric layer is arranged between the conductor layer of the belt and the second electrode of the at least one pulley.
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公开(公告)号：US09817366B2
公开(公告)日：2017-11-14
申请号：US14635373
申请日：2015-03-02
Applicant: Konica Minolta, Inc.
Inventor： Keiki Katsumata , Yuichi Omori
CPC classification number: G03G21/206 , G03G15/02 , G03G15/0258
Abstract: An image forming apparatus includes: a charging section configured to charge a surface of an image bearing member; an air-intake duct having an air-supply port, and configured to guide air sucked from an outside to the charging section through the air-supply port; an exhaust duct having an air-intake port, and configured to suck air around the charging section through the air-intake port and eject the air thus sucked. The air-intake duct has a configuration in which air guided to the charging section through the air-supply port flows in a direction orthogonal to a longitudinal direction of the charging section, or flows toward a center of the charging section in the longitudinal direction.
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Patent Agency Ranking
公开(公告)号：US20170242363A1
公开(公告)日：2017-08-24
申请号：US15590874
申请日：2017-05-09
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Omer Gila , Seongsik Chang , Michael H. Lee
IPC: G03G15/02
CPC classification number: G03G15/0258 , G03G15/02 , G03G15/0216 , G03G15/0266 , G03G15/043 , G03G15/10 , G03G15/11
Abstract: Techniques for liquid electrography printing are described herein. In at least some examples herein, a liquid electrographic printer includes a charging element for charging a photo imaging plate (PIP). A light source irradiates light onto the charge element. The irradiated light is to heat the charge element to a selected temperature.
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公开(公告)号：US20170115594A1
公开(公告)日：2017-04-27
申请号：US15398268
申请日：2017-01-04
Applicant: Stratasys, Inc.
Inventor： Trevor I. Martin
CPC classification number: G03G15/08 , B33Y10/00 , B33Y70/00 , G03G5/0662 , G03G5/071 , G03G9/0819 , G03G9/08711 , G03G9/08795 , G03G9/08797 , G03G9/09733 , G03G13/18 , G03G15/02
Abstract: A support material for printing a support structure with an electrophotography-based additive manufacturing system, the support material including a composition having a charge control agent and a thermoplastic copolymer having aromatic groups, (meth)acrylate-based ester groups, carboxylic acid groups, and anhydride groups, with a high anhydride conversion. The composition is provided in a powder form having a controlled particle size, and the support material is configured for use in the electrophotography-based additive manufacturing system having a layer transfusion assembly for printing the support structure in a layer-by-layer manner, and is at least partially soluble in an aqueous solution.
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公开(公告)号：US20160349639A1
公开(公告)日：2016-12-01
申请号：US14922779
申请日：2015-10-26
Applicant: FUJI XEROX CO., LTD.
Inventor： Naoki OTA , Katsuyuki KITAJIMA
CPC classification number: G03G9/0819 , G03G15/02
Abstract: An image forming apparatus includes an electrophotographic photoreceptor, a charging unit; an electrostatic latent image forming unit, a developing unit that stores a developer containing a toner, a transfer unit, a cleaning unit and a fixation unit, wherein the toner has a sea and island structure of a sea portion containing the binder resin and an island portion containing the release agent, a maximum frequent value of the eccentricity B of the island portion containing the release agent is in a range of from 0.75 to 0.95, and a skewness of the eccentricity B is in a range of from −1.10 to −0.50.
Abstract translation: 图像形成装置包括电子照相感光体，充电单元， 静电潜像形成单元，存储含有调色剂的显影剂的显影单元，转印单元，清洁单元和定影单元，其中调色剂具有包含粘合剂树脂和岛的海洋部分的海岛结构 含有脱模剂的部分，含有脱模剂的岛部的偏心率B的最大频率值在0.75〜0.95的范围内，偏心率B的偏度在-1.10〜-0.50的范围内 。
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公开(公告)号：US09436114B2
公开(公告)日：2016-09-06
申请号：US14603004
申请日：2015-01-22
Applicant: FUJI XEROX CO., LTD.
Inventor： Ichiro Kawahara , Hiroki Ando , Mikio Yamaguchi , Hirofumi Iida , Keishi Araki
IPC: G03G15/02
CPC classification number: G03G15/02 , G03G15/0216
Abstract: Provided is an image forming apparatus including an image holder that is provided to be rotatable, and a charging member that includes a charging member main body and a cover member, in which an outer circumferential surface of the cover member is disposed to be in contact with the image holder, and that charges the image holder, wherein a circumferential speed of one member of the rotating image holder and the rotating charging member main body is greater than a circumferential speed of the other member, and wherein the cover member moves to follow a movement of the one member at a contact portion where the cover member and the image holder come into contact with each other, and a portion of the cover member that is positioned on an upstream side of the contact portion is drawn toward a downstream side.
Abstract translation: 本发明提供一种图像形成装置，其特征在于，包括设置成能够旋转的图像保持器和充电部件，所述充电部件包括充电部件主体和盖部件，所述盖部件的外周面配置成与所述充电部件主体和盖部件接触， 图像保持器，并且对图像保持器进行充电，其中旋转图像保持器的一个构件和旋转充电构件主体的圆周速度大于另一个构件的圆周速度，并且其中盖构件移动以跟随 一个构件在盖构件和图像保持器彼此接触的接触部分处的移动，并且位于接触部分的上游侧的盖构件的一部分被拉向下游侧。
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10.发明授权Charging member, manufacturing method for charging member, electrophotographic apparatus, and process cartridge 有权充电部件，充电部件的制造方法，电子照相设备和处理盒公开(公告)号：US09372429B2
公开(公告)日：2016-06-21
申请号：US14830444
申请日：2015-08-19
Applicant: CANON KABUSHIKI KAISHA
Inventor： Hiroaki Watanabe , Shinsuke Kokubo , Toshiro Suzuki
CPC classification number: G03G15/0233 , B01J19/085 , G03G15/02
Abstract: Provided is a charging member capable of suppressing adhesion of smear on its surface and suppressing generation of a C set image as well.The charging member includes: an electroconductive support; and an elastic layer as a surface layer, in which: the elastic layer has at least one local maximum value in a distribution of Young's modulus at respective positions in a depth direction thereof; and “a”, “Tmax” and “b” satisfy the following expressions (1) to (3): (1) 0.8 μm≦Tmax≦2.5 μm, (2) 0.6 MPa≦b≦1.2 MPa, (3) (a−b)/b≧0.40.
Abstract translation: 提供一种能够抑制涂片在其表面上的粘附并抑制C图像的产生的充电构件。 充电构件包括：导电支撑件; 以及作为表层的弹性层，其中：所述弹性层在其深度方向的各位置处具有杨氏模量分布中的至少一个局部最大值; （1）0.8μm＆nlE; Tmax＆nlE;2.5μm，（2）0.6MPa＆lt; 1lE; b＆nlE; 1.2MPa，（3）（1） a-b）/b≥0.40。
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