公开(公告)号：US20240272071A1

公开(公告)日：2024-08-15

申请号：US18430060

申请日：2024-02-01

Applicant: Konica Minolta, Inc.

Inventor： Akimasa ISHIKAWA ,  Hitoshi ASANO ,  Yumiko IZUMIYA ,  Yasuo KOYANAGI ,  Hiroyuki YOSHIKAWA

IPC: G01N21/47 ,  G01N21/89 ,  G03G15/00 ,  G03G15/16

CPC classification number: G01N21/4738 ,  G03G15/16 ,  G03G15/5029 ,  G01N2021/8917 ,  G03G2215/00751 ,  G03G2215/00772 ,  G03G2215/00776

Abstract: A media detection apparatus for detecting moisture information corresponding to a moisture amount or a moisture percentage of a sheet, the media detection apparatus comprising:



a light emitter that emits light;
a light receiver that receives the light reflected off the sheet or transmitted through the sheet; and
a first hardware processor that determines the moisture information on the basis of temperature information corresponding to a temperature of the media detection apparatus and an output of the light receiver.

公开(公告)号：US20240264554A1

公开(公告)日：2024-08-08

申请号：US18366180

申请日：2023-08-07

Applicant: FUJIFILM Business Innovation Corp.

Inventor： Masahiro KATAHIRA

IPC: G03G15/16 ,  G03G15/01

CPC classification number: G03G15/16 ,  G03G15/0131

Abstract: An image forming apparatus includes: an image former that forms a toner image; an image carrier that carries the toner image formed by the image former; a transferer that transfers the toner image on a surface of the image carrier to a recording medium that passes through a transfer position of the image carrier by using a transfer electric field that is formed by applying a transfer bias; a measurer that measures a voltage in the transferer; and at least one processor configured to: calculate a voltage division ratio γ=Vp/Vm that is a ratio of a recording-medium divided voltage Vp when the recording medium passes in the transferer to a member divided voltage Vm that is applied to a member before the recording medium passes in the transferer; and cause the image former to change an amount of toner in a band-shaped toner image to be formed on a region of the image carrier that does not face the recording medium or a supply frequency of the band-shaped toner image in accordance with the voltage division ratio γ or a length of the recording medium in a transport direction of the recording medium.

公开(公告)号：US12032310B2

公开(公告)日：2024-07-09

申请号：US17589644

申请日：2022-01-31

Applicant: FUJIFILM BUSINESS INNOVATION CORP.

Inventor： Yoshiki Matsuzaki ,  Chihiro Iijima

IPC: G03G15/16 ,  G03G15/00 ,  G03G15/01

CPC classification number: G03G15/1605 ,  G03G15/0142 ,  G03G15/0178 ,  G03G15/1615 ,  G03G15/6529 ,  G03G15/16 ,  G03G2215/00016 ,  G03G2215/00139 ,  G03G2215/0103 ,  G03G2215/0119 ,  G03G2215/0125 ,  G03G2215/0135 ,  G03G2215/0141 ,  G03G2215/0145 ,  G03G2215/0148

Abstract: An image forming apparatus includes an image forming target looped around plural rotators including a driving roller, having at least one straight portion that is shaped straight when viewed in an axial direction of the driving roller, and transported by the driving roller and the rotators, and three or more image formers arranged along the straight portion and configured to form images on the image forming target. An adjacency distance along the straight portion between the image formers adjacent to each other on the straight portion is an integral multiple of an outer peripheral length of the driving roller. The adjacency distance at a downstream end is shorter than the adjacency distance at an upstream end, and one of the adjacency distances is equal to or shorter than the adjacency distance that is relatively on an upstream side.

公开(公告)号：US11753519B2

公开(公告)日：2023-09-12

申请号：US17088590

申请日：2020-11-04

Applicant: Sumitomo Riko Company Limited

Inventor： Shinkichi Kashihara ,  Takeru Horiuchi ,  Naoki Akira

IPC: G03G15/02 ,  C08K3/04 ,  C08K5/14 ,  C08L9/00 ,  F16C13/00 ,  C08K5/00 ,  G03G15/08 ,  G03G15/16

CPC classification number: C08K3/04 ,  C08K5/00 ,  C08K5/14 ,  C08L9/00 ,  F16C13/00 ,  G03G15/0233 ,  G03G15/08 ,  G03G15/16

Abstract: Provided is a conductive roll for an electrophotographic machine. The conductive roll is a charging roll and includes a shaft body, and an elastic body layer formed on an outer periphery of the shaft body. The elastic body layer is a crosslinked body of a composition containing a diene-based polymer (a), a sulfur or peroxide crosslinking agent (b), carbon black (c), and a coupling agent (d). (c) has a specific surface area of 40 to 300 m2/g. (d) is a coupling agent having a NHR1 group and a SSO3H group, or a coupling agent having a NHR1 group and an ene structure (where R1 is H or a hydrocarbon group having 1 to 8 carbon atoms). The contents of (c) and (d) in the composition are respectively 10 to 45 parts by mass and 0.5 to 20 parts by mass with respect to 100 parts by mass of (a).

公开(公告)号：US20190086832A1

公开(公告)日：2019-03-21

申请号：US16127689

申请日：2018-09-11

Applicant: KYOCERA Document Solutions Inc.

Inventor： Yuta Nohara ,  Tomohiko Yamakawa ,  Hiroaki Ohashi ,  Masaru Takagi

IPC: G03G15/08 ,  G03G15/16

CPC classification number: G03G15/087 ,  G03G15/0126 ,  G03G15/0868 ,  G03G15/0879 ,  G03G15/16

Abstract: An image forming unit of an image forming apparatus includes a developing device and a toner replenishing unit that replenishes the developing device with toner. The toner replenishing unit includes an upper toner container, a lower toner container, a toner conveyance unit, and a replenishment control unit. The upper toner container and the lower toner container are disposed in a staggered manner in an apparatus body. When the upper toner container becomes empty, the replenishment control unit controls the toner replenishing unit so as to replenish the developing device with the toner from the lower toner container.

公开(公告)号：US20190079440A1

公开(公告)日：2019-03-14

申请号：US16123153

申请日：2018-09-06

Applicant: KYOCERA Document Solutions Inc.

Inventor： Toshiaki Mutsuo ,  Hiroki Tanaka ,  Takayuki Mashimo

IPC: G03G15/00 ,  G03G15/04 ,  G03G15/08 ,  G03G15/16

CPC classification number: G03G15/556 ,  G03G15/04045 ,  G03G15/04072 ,  G03G15/0865 ,  G03G15/16 ,  G03G15/5041 ,  G03G15/5087

Abstract: An exposure device irradiates a photoconductor with light on the basis of an exposure signal and thereby forms an electrostatic latent image. A toner amount calculating unit (a) determines a distribution pattern of the electrostatic latent image on the basis of the exposure signal, (b) determines an electric field variation level of a target pixel, (c) determines an electric field intensity of the target pixel on the basis of a value of the target pixel in the distribution pattern and the electric field variation level, and (d) determines a toner consumption amount corresponding to the electric field intensity. Further, using spatial filters independently of each other in a primary scanning direction and in a secondary scanning direction, the toner amount calculating unit determines the electric field variation level on the basis of (a) the distribution pattern or (b) the exposure signal.

公开(公告)号：US20190011858A1

公开(公告)日：2019-01-10

申请号：US16028118

申请日：2018-07-05

Applicant: Konica Minolta, Inc.

Inventor： Seijiro Takahashi ,  Haruo Horiguchi ,  Toyoko Shibata

IPC: G03G15/16 ,  G03G15/20 ,  G03G9/087 ,  G03G15/04

CPC classification number: G03G15/16 ,  G03G9/087 ,  G03G9/08711 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/0904 ,  G03G9/0926 ,  G03G15/04 ,  G03G15/2021 ,  G03G15/2039 ,  G03G15/2053 ,  G03G15/2064

Abstract: An object of the present invention is achieved by an image forming method containing the steps of: forming a toner image by developing an electrostatic latent image with a toner; transferring the toner image on a recording medium; and fixing the toner image on the recording medium, wherein the fixing step of the toner image on the recording medium further contains the steps of: irradiating light having a wavelength range of 280 to 480 nm to the toner image; and applying pressure to the toner image.

公开(公告)号：US20180348665A1

公开(公告)日：2018-12-06

申请号：US15992605

申请日：2018-05-30

Applicant: CANON KABUSHIKI KAISHA

Inventor： Taichi Sato ,  Jumpei Kuno ,  Kenichi Kaku ,  Takashi Anezaki ,  Atsushi Fujii

IPC: G03G15/08 ,  G03G15/02 ,  G03G15/18 ,  G03G15/16

CPC classification number: G03G15/0865 ,  G03G5/104 ,  G03G5/144 ,  G03G15/02 ,  G03G15/16 ,  G03G15/18

Abstract: Provided is an electrophotographic photosensitive member capable of achieving both high leak resistance and reduction in variations in dark part potential and bright part potential due to repeated use even when CB is used for an electrically conductive layer. An electrophotographic photosensitive member including: a support, an electrically conductive layer, and a photosensitive layer, sequentially, wherein the electrically conductive layer contains a binder resin and carbon black, a number average primary particle diameter of the carbon black is 200 nm or more and 500 nm or less, an average inter-particle distance of the carbon black is 200 nm or more and 600 nm or less, a coefficient of variation of an inter-particle distance is 1.2 or less, and SF-1 of the carbon black is 150 or less.

公开(公告)号：US09891548B2

公开(公告)日：2018-02-13

申请号：US14729180

申请日：2015-06-03

Applicant: Takamasa Hase ,  Yukiko Iwasaki ,  Minoru Masuda ,  Tsuneyasu Nagatomo ,  Kenji Yoneda

Inventor： Takamasa Hase ,  Yukiko Iwasaki ,  Minoru Masuda ,  Tsuneyasu Nagatomo ,  Kenji Yoneda

IPC: G03G13/20 ,  G03G13/08 ,  G03G9/087 ,  G03G15/20 ,  G03G15/00 ,  G03G15/08 ,  G03G15/16

CPC classification number: G03G13/20 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797 ,  G03G13/08 ,  G03G15/08 ,  G03G15/16 ,  G03G15/2057 ,  G03G15/6591 ,  G03G2215/0129

Abstract: An image forming method is provided. The method includes the steps of forming an electrostatic latent image on a photoconductor; developing the electrostatic latent image into a toner image with a toner; transferring the toner image onto a recording medium having a smoothness of 20 s or less; and fixing the toner image on the recording medium. The toner exhibits an adhesion force of 100 gf or more, where the adhesion force is the maximum value of a pull force between a layer of the toner and standard paper determined by a tacking test with a probe temperature of 140° C.

公开(公告)号：US20180024472A1

公开(公告)日：2018-01-25

申请号：US15529121

申请日：2016-03-31

Applicant: KYOCERA Document Solutions Inc.

Inventor： Takehiro Sato

IPC: G03G15/16

CPC classification number: G03G15/1605 ,  G03G15/0136 ,  G03G15/16 ,  G03G15/1615 ,  G03G21/16 ,  G03G21/1633 ,  G03G21/1647 ,  G03G21/168

Abstract: An image forming device (1) has an image carrier (331), a transfer member (35), a holding member (81) which holds the transfer member, a pressing member (83) which changes a position between a first position and a second position to make the transfer member contact and separate from the image carrier, a first moving member (325) and a second moving member (10P1) which are movable, and a first interlocking mechanism (33T) and a second interlocking mechanism (10Q). The first interlocking mechanism and the second interlocking mechanism press the pressing member to change a position of the pressing member in conjunction with the first moving member and the second moving member. The pressing member includes a first pressed portion (83P1) which is pressed by the first interlocking mechanism, and a second pressed portion (83P2) which is pressed by the second interlocking mechanism.