公开(公告)号：US12105472B2

公开(公告)日：2024-10-01

申请号：US18326888

申请日：2023-05-31

Applicant: Kento Takeuchi ,  Masashi Nagayama ,  Tohru Suganuma ,  Tomomi Suzuki

Inventor： Kento Takeuchi ,  Masashi Nagayama ,  Tohru Suganuma ,  Tomomi Suzuki

IPC: G03G15/08 ,  G03G9/00 ,  G03G9/113

CPC classification number: G03G9/113 ,  G03G15/08 ,  G03G15/0818 ,  G03G2215/0607

Abstract: A carrier for forming an electrophotographic image contains a core particle and a coating layer coating the core particle, wherein the coating layer contains a particle containing antimony and an anionic dispersant and the particle containing antimony includes a substrate particle containing a first inorganic fine particle.

公开(公告)号：US20230305439A1

公开(公告)日：2023-09-28

申请号：US18115771

申请日：2023-03-01

Applicant: Masashi NAGAYAMA ,  Tomomi SUZUKI ,  Kento TAKEUCHI ,  Tohru SUGANUMA

Inventor： Masashi NAGAYAMA ,  Tomomi SUZUKI ,  Kento TAKEUCHI ,  Tohru SUGANUMA

IPC: G03G15/08 ,  G03G9/107 ,  G03G9/113

CPC classification number: G03G15/0889 ,  G03G15/0808 ,  G03G9/1085 ,  G03G9/1139 ,  G03G2215/0607

Abstract: A carrier for electrophotographic image formation includes carrier particles. Each of the carrier particles includes a core particle and a coating layer covering the core particle. The coating layer includes diantimony pentoxide-containing particles.

公开(公告)号：US20180341191A1

公开(公告)日：2018-11-29

申请号：US15949260

申请日：2018-04-10

Applicant: Oki Data Corporation

Inventor： Satoru MURAI

IPC: G03G9/097 ,  G03G15/08 ,  G03G9/093 ,  G03G9/08 ,  G03G9/087

CPC classification number: G03G9/09725 ,  G03G9/0825 ,  G03G9/08755 ,  G03G9/0926 ,  G03G9/09342 ,  G03G9/09371 ,  G03G9/09708 ,  G03G15/0865 ,  G03G2215/0607

Abstract: A toner includes an external additive particle that is a complex oxide containing a titanium dioxide (TiO2) and a silicon dioxide (SiO2). A detection amount of titanium (Ti) detected through an elementary analysis based on energy-dispersive X-ray spectrometry is equal to or higher than about 0.590 percent by weight and equal to or lower than about 0.967 percent by weight.

公开(公告)号：US10073379B2

公开(公告)日：2018-09-11

申请号：US15246557

申请日：2016-08-25

Applicant: FUJI XEROX CO., LTD.

Inventor： Yuki Sekura ,  Toru Iwanami ,  Wenxiang Ge ,  Hideaki Ozawa ,  Tomonori Sato

IPC: G03G15/00 ,  G03G15/08 ,  G03G15/095

CPC classification number: G03G15/0887 ,  G03G15/0849 ,  G03G15/0889 ,  G03G15/0891 ,  G03G15/095 ,  G03G2215/0607 ,  G03G2215/0805 ,  G03G2215/085 ,  G03G2215/0888 ,  G03G2221/0005

Abstract: According to an aspect of the invention, a developing device includes a developing container that accommodates a two-component developer, a toner concentration detecting unit that detects a toner concentration of the developer by a detecting unit exposed to an inner wall of the developing container, a transport member that is disposed within the developing container and stirs and transport the developer with a transport blade having a pitch that is equal to or less than a size of the detecting unit of the toner concentration detecting unit, and a plurality of gap holding members that is provided at a position facing the toner concentration detecting unit of the transport member and holds a gap such that a tip thereof is abutted against the inner wall of the developing container.

公开(公告)号：US20180217520A1

公开(公告)日：2018-08-02

申请号：US15879663

申请日：2018-01-25

Applicant: Konica Minolta, Inc.

Inventor： TAKAHIRO KUSUNOKI

IPC: G03G15/08

CPC classification number: G03G15/0849 ,  G03G15/0806 ,  G03G15/0877 ,  G03G15/556 ,  G03G2215/0607

Abstract: An image forming apparatus includes a correction amount calculator, a fluidity measuring unit, and an external additive amount calculator. The correction amount calculator calculates a correction amount of fluidity to correct the fluidity of a two-component developer. The fluidity measuring unit measures the fluidity of the two-component developer. The external additive amount calculator corrects the measured fluidity on the basis of the correction amount of fluidity, calculates the amount of an external additive of a toner from the corrected fluidity of the two-component developer, and determines the state of the external additive.

公开(公告)号：US09891545B2

公开(公告)日：2018-02-13

申请号：US15223810

申请日：2016-07-29

Applicant: FUJI XEROX CO., LTD.

Inventor： Shintaro Anno ,  Motoko Sakai ,  Takuro Watanabe ,  Shuji Sato

IPC: G03G9/113 ,  G03G9/09 ,  G03G15/08

CPC classification number: G03G9/1136 ,  G03G9/0902 ,  G03G9/0926 ,  G03G15/08 ,  G03G15/0865 ,  G03G2215/0607

Abstract: An electrostatic charge image developer includes a toner that includes a toner particle; and a carrier, wherein the toner particle contains a brilliant pigment, an exposed amount of the brilliant pigment contained in the toner particle is from 0.5% to 5%, the carrier has a core particle and a coating layer which covers a surface of the core particle, the coating layer contains a silicone resin and a siloxane oligomer, and a content of the siloxane oligomer is from 0.1 ppm to 500 ppm with respect to a total weight of the coating layer.

公开(公告)号：US09372440B2

公开(公告)日：2016-06-21

申请号：US14287785

申请日：2014-05-27

Applicant: Konica Minolta, Inc.

Inventor： Tatsuya Furuta ,  Tomohiro Kawasaki ,  Kazuteru Ishizuka ,  Kazuhiro Saito

IPC: G03G15/09 ,  G03G15/08

CPC classification number: G03G15/0868 ,  G03G15/0822 ,  G03G15/0849 ,  G03G15/0865 ,  G03G15/0893 ,  G03G15/09 ,  G03G2215/0607 ,  G03G2215/0609

Abstract: A developing device includes: a developer container section configured to contain therein a two-component developer composed of toner and magnetic carrier; a developer bearing member configured to supply the developer to an image bearing member on which an electrostatic latent image is formed; a toner supplying section configured to supply the toner to the developer container section via the toner supply port; a carrier supplying section provided separately from the toner supplying section, the carrier supplying section being configured to supply the carrier to the developer container section via the carrier supply port; and a carrier detection section disposed at a position near the carrier supply port and at a same level as a powder surface of the developer contained in the developer container section, the carrier detection section being configured to detect carrier supplied from the carrier supplying section.

Abstract translation: 显影装置包括：显影剂容器部分，其构造成在其中容纳由调色剂和磁性载体组成的双组分显影剂; 显影剂承载部件，被构造成将显影剂供给到其上形成有静电潜像的图像承载部件; 调色剂供给部，其经由调色剂供给口将调色剂供给到显影剂容器部; 与所述调色剂供应部分开设置的载体供给部，所述载体供给部构造成经由所述载体供给口将所述载体供给到所述显影剂容器部; 以及载体检测部，其设置在所述载体供给口附近的位置处，与所述显影剂容纳部容纳的显影剂的粉末表面相同的高度，所述载体检测部被配置为检测从所述载体供给部供给的载体。

公开(公告)号：US09366989B2

公开(公告)日：2016-06-14

申请号：US14589955

申请日：2015-01-05

Applicant: Daisuke Ito ,  Ken Yoshida ,  Keiko Matsumoto ,  Yoichi Sakurai ,  Daisuke Takahashi

Inventor： Daisuke Ito ,  Ken Yoshida ,  Keiko Matsumoto ,  Yoichi Sakurai ,  Daisuke Takahashi

IPC: G03G15/01 ,  G03G15/08

CPC classification number: G03G15/0822 ,  G03G15/0121 ,  G03G15/0126 ,  G03G15/0142 ,  G03G15/0189 ,  G03G2215/0607

Abstract: An image forming apparatus includes at least one image bearer; multiple developing devices to develop the latent images with developers including toner and carrier into a toner image; multiple developer supply devices to supply the developers to the multiple developing devices, respectively; and a fixing device to fix the toner image on a sheet of recording media. When one of the multiple developing devices positioned at a shortest distance from an outline of the fixing device is referred to as a first developing device, and one of the multiple developer supply devices that supplies developer to the first developing device is referred to as a first developer supply device, the first developer supply device is greater in percentage by weight of carrier in developer supplied to the first developing device than rest of the multiple developer supply devices.

Abstract translation: 图像形成装置包括至少一个图像载体; 多个显影装置将具有调色剂和载体的显影剂的潜像显影成调色剂图像; 多个显影剂供应装置分别向多个显影装置供应开发者; 以及用于将调色剂图像固定在记录介质片上的定影装置。 当定位在与定影装置的轮廓最短距离的多个显影装置中的一个被称为第一显影装置时，将显影剂供应到第一显影装置的多个显影剂供应装置中的一个被称为第一显影装置 显影剂供应装置，第一显影剂供应装置比供应给第一显影装置的显影剂中的载体的重量百分比大于其余多个显影剂供应装置。

公开(公告)号：US20160062256A1

公开(公告)日：2016-03-03

申请号：US14604034

申请日：2015-01-23

Applicant: FUJI XEROX CO., LTD.

Inventor： Takeshi SHOJI ,  Hiroshi KAMADA ,  Yosuke TSURUMI

IPC: G03G9/00

CPC classification number: G03G9/1133 ,  G03G9/1135 ,  G03G15/08 ,  G03G2215/0132 ,  G03G2215/0607

Abstract: An electrostatic charge image developing carrier contains a core particle and a resin coat layer on a surface of the core particle, wherein the core particle has a BET specific surface area of from 0.05 m2/g to 0.10 m2/g, and the resin coat layer contains a nitrogen-containing (meth)acrylate resin.

Abstract translation: 静电荷图像显影载体在芯颗粒的表面上含有芯颗粒和树脂涂层，其中核心颗粒的BET比表面积为0.05m 2 / g至0.10m 2 / g，树脂涂层 含有（甲基）丙烯酸酯树脂。

公开(公告)号：US20140205327A1

公开(公告)日：2014-07-24

申请号：US14155614

申请日：2014-01-15

Applicant: Konica Minolta, Inc.

Inventor： Kosuke NAKAMURA ,  Hiroyuki Kozuru ,  Yoshiyasu Matsumoto

IPC: G03G15/08 ,  G03G15/09

CPC classification number: G03G9/0832 ,  G03G9/0833 ,  G03G9/1075 ,  G03G9/1135 ,  G03G15/0879 ,  G03G2215/0607

Abstract: A developing device includes a developer container, a developing unit, a developer outlet and a replenishment developer inlet. The developer container contains a developer composed of a toner and a first carrier. The developing unit develops an electrostatic latent image on an image carrier using the developer. The developer outlet discharges the developer. The replenishment developer inlet supplies a replenishment developer to the developer container. The replenishment developer includes a second carrier. A ratio of a poured bulk density of the second carrier to a poured bulk density of the first carrier ranges from 0.60 to 0.95.

Abstract translation: 显影装置包括显影剂容器，显影单元，显影剂出口和补充显影剂入口。 显影剂容器包含由调色剂和第一载体组成的显影剂。 显影单元使用显影剂在图像载体上显影静电潜像。 显影剂出口排出显影剂。 补货开发商入口将补充开发商提供给开发者容器。 补货开发商包括第二承运人。 第二载体的倾倒堆积密度与第一载体的倾倒体积密度的比值为0.60至0.95。