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公开(公告)号：US20220107584A1
公开(公告)日：2022-04-07
申请号：US17486021
申请日：2021-09-27
Applicant: KYOCERA Document Solutions Inc.
Inventor： Tomohiro TAMAKI , Takahisa NAKAUE , Kotatsu KAWAGUCHI , Masahito ISHINO , Yukari OTA
Abstract: An image forming apparatus includes an image carrier, a charger, an exposure device, a development device and a pressing mechanism. The developer carrier is pressed on the image carrier with a predetermined pressing force to form a nip area between the roller part and the image carrier. A roller part of the developer carrier has an Asker C hardness of 65° or more and 73° or less. When the pressing force is set to X (N) and a width of the nip area in a circumferential direction of the image carrier is set to Y (μm), 3.0≤X≤8.0 and 550≤Y≤700, and the following expressions (1) and (2) are satisfied, Y ≥ 31.0 X + 393.2 and , ( 1 ) Y ≤ 47.0 X + 450.1 . ( 2 )
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公开(公告)号：US20170023881A1
公开(公告)日：2017-01-26
申请号：US15211948
申请日：2016-07-15
Applicant: KYOCERA Document Solutions Inc.
Inventor： Teruhiko NAGASHIMA , Mitsuhiro GODA , Hidenori TAKENAKA , Takahisa NAKAUE , Yoshimi SHIMIZU
IPC: G03G15/09
CPC classification number: G03G15/0887 , G03G15/0812 , G03G15/0815 , G03G2215/0132 , G03G2215/0838
Abstract: A developing device of the present disclosure includes a developing roller, a toner supply roller, a regulation blade, a casing, a toner receiving support member, a toner receiving member, a vibration generation unit, and a vibration inhibition member. The toner receiving support member is disposed in the casing so as to be opposed to the developing roller or the toner supply roller in an area between the regulation blade and an image carrier. The toner receiving member has a toner receiving surface that receives toner dropping from the developing roller, and is supported so as to be swingable about an end edge thereof on a toner supply roller side as a fulcrum. In a state where the toner receiving member is not vibrating, the vibration inhibition member is in contact with each of both end portions of the toner receiving surface in a longitudinal direction thereof.
Abstract translation: 本公开的显影装置包括显影辊，调色剂供应辊，调节片，壳体，调色剂接收支撑构件，调色剂接收构件，振动产生单元和减振构件。 调色剂接收支撑构件设置在壳体中，以便在调节叶片和图像载体之间的区域中与显影辊或调色剂供给辊相对。 调色剂接收构件具有接收从显影辊下落的调色剂接收表面，并且被支撑为能够以作为支点的调色剂供给辊侧的端部边缘摆动。 在调色剂接收构件没有振动的状态下，防振构件与调色剂接收表面的两个端部中的每一个在其长度方向上接触。
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3.发明申请DEVELOPER STORING CONTAINER, AND IMAGE FORMING APPARATUS PROVIDED WITH THE SAME 有权开发者存储容器，以及与之相关的图像形成装置公开(公告)号：US20160062268A1
公开(公告)日：2016-03-03
申请号：US14838003
申请日：2015-08-27
Applicant: KYOCERA Document Solutions Inc.
Inventor： Takahisa NAKAUE , Daisuke ETO
IPC: G03G15/08
CPC classification number: G03G15/0877 , G03G15/0886
Abstract: Provided are a developer storing container, including a movable moving wall, and suppressing a developer from being leaked to a moving direction upstream side of the moving wall, and an image forming apparatus, provided with the same A toner container is provided with a container main body, a moving wall, a toner discharge port, and an inner wall seal. The toner container replenishes toner to a developing apparatus. The moving wall conveys the toner while being moved toward the toner discharge port inside the container main body. The inner wall seal forms an outer peripheral part of the moving wall, and is compressively deformed between an inner peripheral part of the container main body and the moving wall. A cross-sectional area of an internal space of the container main body is set so as to be decreased as a final position of the moving wall is approached.
Abstract translation: 提供了一种显影剂储存容器，包括可移动的移动壁，并且抑制显影剂泄漏到移动壁的移动方向的上游侧;以及设置有该调色剂容器的图像形成装置，设置有容器主体 主体，移动壁，调色剂排出口和内壁密封件。 调色剂容器将调色剂补充到显影装置。 移动壁在朝向容器主体内的调色剂排出口移动的同时传送调色剂。 内壁密封件形成移动壁的外周部，并且在容器主体的内周部与移动壁之间进行压缩变形。 容器主体的内部空间的横截面积被设定为随着移动壁的最终位置接近而减小。
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公开(公告)号：US20240027957A1
公开(公告)日：2024-01-25
申请号：US18350310
申请日：2023-07-11
Applicant: KYOCERA Document Solutions Inc.
Inventor： Masahito ISHINO , Takahisa NAKAUE , Tomohiro TAMAKI , Sueaki OKAMOTO
CPC classification number: G03G21/20 , G03G15/0812
Abstract: An image forming apparatus includes an image carrying member, a charging device, an exposure device, a developing device, a control section, and a temperature detecting device. The developing device includes a developer carrying member having an outer circumferential surface on which a toner layer is formed, and a regulation blade that regulates a thickness of the toner layer. The control section executes speed reduction control to reduce a rotation speed of the developer carrying member at a time of warming-up. When a printing operation to be performed after the warming-up is intermittent printing and an interval of the intermittent printing is not less than a prescribed time or a temperature detected by the temperature detecting device is not more than a prescribed temperature, the control section reduces the rotation speed of the developer carrying member in the speed reduction control to a second speed lower than the first speed.
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公开(公告)号：US20240027931A1
公开(公告)日：2024-01-25
申请号：US18350630
申请日：2023-07-11
Applicant: KYOCERA Document Solutions Inc.
Inventor： Takahisa NAKAUE , Masahito ISHINO , Tomohiro TAMAKI , Sueaki OKAMOTO
CPC classification number: G03G15/0266 , G03G15/04036 , G03G15/0865 , G03G15/2092 , G03G21/0011 , G03G15/5004 , G03G21/02
Abstract: An image forming apparatus includes an image carrying member, a charging device, an exposure device, a developing device, a development voltage power supply, and a control section. The developing device includes a development container for containing a non-magnetic one-component developer composed only of a toner, a developer carrying member having an outer circumferential surface on which a toner layer is formed, and a toner supply member that supplies the toner to the developer carrying member. The control section performs control so that, as a cumulative drive time of the developing device increases, a supply voltage Vsdc becomes larger than a reference supply voltage and a development voltage Vdc becomes smaller than a reference development voltage, thus executing control to vary the development voltage Vdc and the supply voltage Vsdc so as to increase a potential difference Vsdc−Vdc between the supply voltage Vsdc and the development voltage Vdc.
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Patent Agency Ranking
公开(公告)号：US20220107585A1
公开(公告)日：2022-04-07
申请号：US17488656
申请日：2021-09-29
Applicant: KYOCERA Document Solutions Inc.
Inventor： Takahisa NAKAUE , Kotatsu KAWAGUCHI , Masahito ISHINO , Yukari OTA , Tomohiro TAMAKI
IPC: G03G15/08
Abstract: A development device includes a development container, a developer carrier, a regulating blade. The development container contains a non-magnetic one-component developer consisting of a toner only. The regulating blade has a curved part having a radius of curvature of 0.1 mm or more and coming into contact with the roller part. The curved part has an arithmetic average roughness Ra of 0.05 to 0.3 μm. The roller part has a ten-point average roughness Rz of 2 to 4 μm. The roller part has a concave and convex portion, and an average interval Sm between the concave portion and the convex portion is 120 to 290 μm. A Sm/Rz is 30 to 145. A width of a nip area between the regulating blade and the roller part in a circumferential direction of the roller part is 0.1 to 0.95 mm.
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公开(公告)号：US20250013172A1
公开(公告)日：2025-01-09
申请号：US18762110
申请日：2024-07-02
Applicant: KYOCERA Document Solutions Inc.
Inventor： Takahisa NAKAUE , Ryosuke KIMURA
Abstract: An image forming apparatus includes an image carrying member, a charging device, a charging voltage power supply, an exposure device, a development device, a development voltage power supply, an intermediate transfer member, a primary transfer member, a secondary transfer member, a transfer voltage power supply and a control unit. The development device includes a developer carrying member which carries a developer containing a toner. The development voltage power supply applies, to the developer carrying member, a development voltage in which an alternating-current voltage is superimposed on a direct-current voltage. The transfer voltage power supply applies a transfer voltage to the primary transfer member and the secondary transfer member. The control unit performs a first image quality improvement mode in which the frequency of the alternating-current voltage of the development voltage and a primary transfer current flowing between the image carrying member and the primary transfer member are simultaneously changed.
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公开(公告)号：US20240319650A1
公开(公告)日：2024-09-26
申请号：US18604895
申请日：2024-03-14
Applicant: KYOCERA Document Solutions Inc.
Inventor： Ryosuke KIMURA , Takahisa NAKAUE
CPC classification number: G03G15/5054 , G03G15/065 , G03G15/1605
Abstract: An image forming apparatus includes an image forming unit, a transfer member, a density detection device, and a control unit. The image forming unit includes an image carrier, a charging device, an exposing device, and a developing device. The control unit is capable of executing a calibration mode to correct density of a toner image. When the calibration mode is executed, a datum image is formed by the developing device, a developing voltage is adjusted on the basis of density of the datum image detected by the density detection device, and a transfer voltage is adjusted on the basis of the adjusted developing voltage.
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公开(公告)号：US20230305430A1
公开(公告)日：2023-09-28
申请号：US18186050
申请日：2023-03-17
Applicant: KYOCERA Document Solutions Inc.
Inventor： Tomohiro TAMAKI , Takahisa NAKAUE , Masahito ISHINO , Sueaki OKAMOTO
IPC: G03G15/08
CPC classification number: G03G15/0812 , G03G15/0818 , G03G2215/0634
Abstract: A developing device includes a development container, a toner carrier, and a regulation blade. The toner carrier supplies toner contained in the development container to an image carrier in a facing region between the toner carrier and the image carrier. The regulation blade contacts the toner carrier on an upstream side of the facing region in a rotation direction of the toner carrier, and regulates a thickness of a layer of the toner carried on the toner carrier. The regulation blade is formed of a metal material polished in a direction same as a toner moving direction in a contact region between the regulation blade and the toner carrier such that an arithmetic average roughness of a surface of the regulation blade is 0.3 μm or less.
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公开(公告)号：US20240027936A1
公开(公告)日：2024-01-25
申请号：US18350616
申请日：2023-07-11
Applicant: KYOCERA Document Solutions Inc.
Inventor： Sueaki OKAMOTO , Masahito ISHINO , Takahisa NAKAUE , Tomohiro TAMAKI
CPC classification number: G03G15/0865 , G03G15/2092 , G03G15/5008 , G03G21/0011 , G03G21/02 , G03G2215/0402 , G03G2215/00084
Abstract: An image forming apparatus includes an image carrying member, a charging device, an exposure device, a developing device, and a control section. The developing device includes a development container for containing a non-magnetic one-component developer composed only of a toner, a developer carrying member having an outer circumferential surface on which a toner layer is formed, and a regulation blade that regulates a thickness of the toner layer. The control section executes speed reduction control to reduce a rotation speed of the developer carrying member at a time of warming-up before image formation to a first speed lower than a reference speed at a time of the image formation. In the speed reduction control, the control section raises the rotation speed of the developer carrying member at a first acceleration rate until the first speed is reached from a state where rotation of the developer carrying member is stopped.
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