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公开(公告)号：US12130582B2
公开(公告)日：2024-10-29
申请号：US18232939
申请日：2023-08-11
发明人： Daisuke Abe
CPC分类号： G03G21/186 , G03G21/1857 , G03G2221/1657
摘要： To provide a process cartridge, a drum unit capable of receiving a driving force from the main assembly, and an image forming apparatus including the process cartridge. A cartridge is provided with a movable member having a driving force receiving portion. The movable member moves between an advanced position and a retracted position.
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公开(公告)号：US12130575B2
公开(公告)日：2024-10-29
申请号：US18051333
申请日：2022-10-31
发明人： Michel Assenheimer , Asaf Shoshani , Naama Barak , Dorit Shalev
CPC分类号： G03G21/0094 , G03G15/0163
摘要： A print apparatus is disclosed. The print apparatus includes a photoconductive surface to receive a latent image representative of an image to be printed onto a printable substrate; a charging component to apply a voltage is to be applied to the photoconductive surface as the charging component moves relative to the photoconductive surface; and processing circuitry to receive data indicative of a measurement of a first current resulting from the voltage applied by the charging component; determine, responsive to detecting an increase in the measured first current relative to a reference current, the increase being greater than a first defined threshold current, that there exists a point defect under affecting the latent image; and generate instruction data responsive to determining that there exists a point defect under affecting the latent image. A method and a machine-readable medium are also disclosed.
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公开(公告)号：US12124183B2
公开(公告)日：2024-10-22
申请号：US18335237
申请日：2023-06-15
发明人： Shinsuke Kobayashi , Kensuke Umeda , Ai Suzuki , Kazuhiro Funatani , Shuichi Tetsuno , Toshihiko Takayama , Jun Hara
CPC分类号： G03G15/0266 , G03G15/0225 , G03G15/065 , G03G15/1675 , G03G21/0064
摘要： An image forming apparatus includes a photosensitive member, a charging member, an electrostatic image forming portion, a developing member, a transfer member, a transfer voltage source, a brush member, a brush voltage source, and a controller capable of executing a cleaning operation. The controller carries out control so that the cleaning operation includes a first operation in which a potential difference is formed between the transfer member and the photosensitive member so that toner charged to a normal charge polarity is moved from the transfer member toward the photosensitive member, and a second operation in which a potential difference is formed between the brush member and the photosensitive member so that the toner charged to the normal charge polarity is moved from the photosensitive member toward the brush member.
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公开(公告)号：US12085883B2
公开(公告)日：2024-09-10
申请号：US18187979
申请日：2023-03-22
发明人： Shogo Terakawa
CPC分类号： G03G21/1633 , G03G21/206 , G03G2221/1645 , G03G2221/169
摘要： An image forming apparatus includes a casing, an image forming unit, an outer cover, a first inner cover arranged to face an inner side of the outer cover in a closed state, the first inner cover being made of resin, a second inner cover arranged to face the inner side of the outer cover in the closed state, the second inner cover being made of resin, a first fan, and a second fan. The first inner cover includes a first duct configured to guide air taken in from an exterior of the image forming apparatus by rotation of the first fan to the image forming unit. The second inner cover includes a second duct configured to guide air taken in from the exterior of the image forming apparatus by rotation of the second fan to the image forming unit.
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公开(公告)号：US12078957B2
公开(公告)日：2024-09-03
申请号：US18185497
申请日：2023-03-17
发明人： Hiroshi Nojima , Keiko Fujita
CPC分类号： G03G21/206 , F24F13/24 , F24F2013/242 , G03G15/2021 , G03G2221/1645
摘要： An image forming apparatus includes an image forming unit, a fan, a duct including an air intake port, an air discharge port, and a body portion having a tubular shape and forming an air passage through which air taken in through the air intake port is flown to the air discharge port, the body portion including a holed wall portion to which a plurality of through holes are formed, the plurality of through holes being passed through between an inner surface, forming the air passage, of the holed wall portion and an outer surface, that is on an opposite side from the inner surface, of the holed wall portion, and a noise absorbing member attached to the outer surface of the holed wall portion so as to cover the plurality of through holes, the noise absorbing member having a noise absorbing property.
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公开(公告)号：US20240264560A1
公开(公告)日：2024-08-08
申请号：US18363831
申请日：2023-08-02
发明人： Yoshiro YAMASHITA
IPC分类号： G03G21/00
CPC分类号： G03G21/0017 , G03G2221/0089
摘要： In a cleaning blade, a contact portion that comes into contact with a member to be cleaned is configured with a cured substance of a composition containing a polyisocyanate, a polyol, and at least one of the following (1) or (2):
(1) a fluorine-containing surfactant having a hydroxyl group, and
(2) a fluorine-containing polymer having a hydroxyl value of 50 KOH mg/g or more and 300 KOH mg/g or less.-
公开(公告)号：US20240255403A1
公开(公告)日：2024-08-01
申请号：US18587732
申请日：2024-02-26
发明人： RYO OGAWA , TAKAYUKI HIRATANI , KANA SATO , MASAHIRO WATANABE , TETSUO HINO
IPC分类号： G01N3/42 , B08B1/16 , G01N23/201 , G03G21/00
CPC分类号： G01N3/42 , B08B1/16 , G01N23/201 , G01N2203/0082 , G03G21/0017
摘要： The molded body is a non-foamed molded body including a polyurethane, wherein a Martens hardness measured at a point on the surface of the molded body positioned at a shortest distance from the center of gravity G is 1.0 N/mm2 or more, and three points of Martens hardness measured in a cross-section of the molded body satisfies a specific relational expression, wherein an index value Kω from a scattering profile obtained by allowing a characteristic X-ray from a Cu tube to incident on a surface region to be evaluated of the molded body satisfies a specific relational expression, and wherein the molded body has an erosion rate E of 0.6 μm/g or less, which is measured with spherical alumina particles having an average particle diameter (D50) of 3.0 μm in the surface region to be evaluated.
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公开(公告)号：US20240231253A1
公开(公告)日：2024-07-11
申请号：US18407462
申请日：2024-01-09
申请人： Hiroshi NAKAI
发明人： Hiroshi NAKAI
CPC分类号： G03G15/0216 , G03G21/0035 , G03G21/1814 , G03G2221/0005
摘要： A process cartridge includes an electrostatic latent image bearer, a charging roller, and a brush roller. The charging roller charges the electrostatic latent image bearer and includes a conductive support and a resin layer covering the conductive support and defining an outermost surface layer of the charging roller The brush roller cleans the charging roller and includes fiber bristles. The charging roller and the brush roller satisfy the following relational expressions 1 and 2:
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公开(公告)号：US12032323B2
公开(公告)日：2024-07-09
申请号：US18180902
申请日：2023-03-09
IPC分类号： G03G21/08 , G03G15/00 , G03G15/01 , G03G15/02 , G03G15/04 , G03G15/16 , G03G21/00 , G03G21/06 , G03G9/087
CPC分类号： G03G21/08 , G03G15/75 , G03G15/751 , G03G15/752 , G03G15/754 , G03G21/0094 , G03G21/06 , G03G9/0872 , G03G15/0121 , G03G15/0233 , G03G15/04036 , G03G15/1685 , G03G15/6597 , G03G2215/00957
摘要： An image forming apparatus includes an electrophotographic photoreceptor that includes a conductive substrate and a photosensitive layer disposed on the conductive substrate, the electrophotographic photoreceptor having an outermost surface layer that contains a binder resin, a charge-transporting material, and a fluorine-containing resin particle, the fluorine-containing resin particle containing 0 or more and 30 or less carboxy groups per 106 carbon atoms, a charging device that charges the electrophotographic photoreceptor, an electrostatic latent image forming device that forms an electrostatic latent image on the electrophotographic photoreceptor that is charged, a developing device that houses a developer containing a toner and that develops, with the developer, the electrostatic latent image formed on the electrophotographic photoreceptor into a toner image, a transfer device that transfers the toner image onto a transfer-receiving medium, and an optical discharging device that, after the toner image is transferred onto the transfer-receiving medium and before the electrophotographic photoreceptor is charged, irradiates the electrophotographic photoreceptor with discharging light with a light quantity of 1.0 μW or more and 50.0 μW or less to perform discharging.
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公开(公告)号：US12025943B2
公开(公告)日：2024-07-02
申请号：US18156406
申请日：2023-01-19
发明人： Kenta Shingu , Daisuke Tano
CPC分类号： G03G21/0017 , G03G21/007 , G03G21/1814
摘要： A cleaning blade in which a Young's modulus of a contact portion that comes into contact with a member to be cleaned is 14 MPa or more and 25 MPa or less, and a tip angle of the contact portion is 55 degrees or more and 80 degrees or less.
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