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    DEVELOPING DEVICE AND IMAGE FORMING APPARATUS
    1.
    发明申请
    DEVELOPING DEVICE AND IMAGE FORMING APPARATUS 有权

    公开(公告)号：US20210055674A1

    公开(公告)日：2021-02-25

    申请号：US16995574

    申请日：2020-08-17

    Applicant: KYOCERA Document Solutions Inc.

    Inventor： Minoru WADA ,  Yuji KAMIYAMA ,  Ikuo MAKIE ,  Yu SASAKI ,  Yukari OTA ,  Ryo YAMADA

    IPC: G03G15/08

    Abstract: A developing device includes a developing container, a first stirring member and a second stirring member, and a developing roller. The developing container includes a first stirring chamber, a second stirring chamber, and a communication portion. The first stirring member includes a reverse spiral vane that conveys a developer in a direction reverse to a circulation direction. An air discharge duct is formed on a wall portion of the first stirring chamber opposed to the reverse spiral vane and in an area excluding the communication portion and discharges air from the first stirring chamber to an outside of the developing container via an air discharge port at a distal end of the air discharge duct. A filtration portion is disposed in the air discharge duct adjacently to the air discharge port and restricts leakage of the developer through the air discharge port.

    IMAGE FORMING APPARATUS
    3.
    发明公开
    IMAGE FORMING APPARATUS 审中-公开

    公开(公告)号：US20240310751A1

    公开(公告)日：2024-09-19

    申请号：US18599884

    申请日：2024-03-08

    Applicant: KYOCERA Document Solutions Inc.

    Inventor： Minoru WADA ,  Ryo TANIGUCHI

    IPC: G03G15/045 ,  G03G15/00

    CPC classification number: G03G15/045 ,  G03G15/6597 ,  G03G2215/027 ,  G03G2215/0404

    Abstract: An image forming apparatus includes an image carrier, a charging device, an exposure device, a development device, and a development voltage power supply. The development device includes a development container storing a nonmagnetic one-component developer composed only of a toner, and a developer carrier on which a toner layer is formed on an outer circumferential surface thereof. The development voltage power supply applies a development voltage to the developer carrier. The image forming apparatus alternately forms white regions and exposed regions at a predetermined pitch repeatedly on a surface of the image carrier to form a solid image with an area ratio lower than 100%. Where V0 represents a white-region potential of the image carrier, VL represents an exposed-region potential of the image carrier, Vt represents a toner-layer potential, and Vd represents the development voltage, Vd≤0.5*(V0−VL)+VL−Vt is fulfilled.

    DEVELOPING DEVICE AND IMAGE FORMING DEVICE PROVIDED WITH SAME
    4.
    发明申请
    DEVELOPING DEVICE AND IMAGE FORMING DEVICE PROVIDED WITH SAME 有权
    开发设备和图像形成设备

    公开(公告)号：US20160109829A1

    公开(公告)日：2016-04-21

    申请号：US14892864

    申请日：2014-11-10

    Applicant: KYOCERA DOCUMENT SOLUTIONS INC.

    Inventor： Minoru WADA ,  Masaru HATANO ,  Yoshinori HORIUCHI

    IPC: G03G15/09

    CPC classification number: G03G15/0812 ,  G03G15/09 ,  G03G15/0921

    Abstract: Provided is a developing device that can restrain stress on a developer and improve image quality. This developing device (3a-3d) is provided with: a developing vessel (20) that accommodates the developer, which includes a magnetic carrier and toner; a supply transport screw (23b); a developing roller (31) that carries the developer supplied by the supply transport screw (23b); an ear cutting blade (32) that regulates layer thickness of the developer on the surface of the developing roller (31); and a magnet (50) magnetized on one surface and disposed on the upstream side of the ear cutting blade (32). The magnet (50) is disposed such that a magnetized surface (50a) faces the side of the developing roller (31).

    Abstract translation: 提供了可以抑制显影剂的压力并提高图像质量的显影装置。 该显影装置（3a-3d）设置有：容纳显影剂的显影容器（20），其包括磁性载体和调色剂; 供给输送螺杆（23b）; 承载由供给输送螺杆（23b）供给的显影剂的显影辊（31）; 耳廓切割刀片（32），其调节显影辊（31）的表面上的显影剂的层厚度; 以及在一个表面上磁化并设置在耳朵切割刀片（32）的上游侧的磁体（50）。 磁体（50）设置成使得磁化表面（50a）面向显影辊（31）的侧面。

    DEVELOPING DEVICE AND IMAGE FORMING APPARATUS THEREWITH
    5.
    发明申请
    DEVELOPING DEVICE AND IMAGE FORMING APPARATUS THEREWITH 有权
    开发设备和图像形成装置

    公开(公告)号：US20150198911A1

    公开(公告)日：2015-07-16

    申请号：US14593595

    申请日：2015-01-09

    Applicant: KYOCERA Document Solutions Inc.

    Inventor： Minoru WADA ,  Masaru HATANO ,  Yoshinori HORIUCHI

    IPC: G03G15/09

    CPC classification number: G03G15/0891 ,  G03G15/0812

    Abstract: A developing device has a developing container, a developer carrier, and a restricting member. The restricting member restricts the layer thickness of developer on the surface of the developer carrier. The restricting member includes a restricting base formed of resin with higher strength than the developing container and a metal foil arranged at a tip part of the restricting base. The metal foil has a downstream face portion fixed to a downstream-side face of the restricting base and a restricting face portion formed by bending the tip of the downstream face portion to an upstream side and arranged to face the developer carrier.

    Abstract translation: 显影装置具有显影容器，显影剂载体和限制构件。 限制构件限制显影剂载体表面上的显影剂的层厚度。 限制构件包括由比显影容器高的树脂形成的限制底座和布置在限制底座的尖端部分的金属箔。 金属箔具有固定到限制底座的下游侧的下游面部分和通过将下游面部分的前端弯曲到上游侧而形成的限制面部，并且布置成面对显影剂载体。

    DEVELOPMENT DEVICE AND IMAGE FORMING APPARATUS
    6.
    发明申请
    DEVELOPMENT DEVICE AND IMAGE FORMING APPARATUS 有权
    开发设备和图像形成装置

    公开(公告)号：US20150104216A1

    公开(公告)日：2015-04-16

    申请号：US14501886

    申请日：2014-09-30

    Applicant: KYOCERA Document Solutions Inc.

    Inventor： Minoru WADA ,  Takefumi YOTSUTSUJI

    IPC: G03G15/08 ,  G03G15/09

    CPC classification number: G03G15/0921 ,  G03G15/0893 ,  G03G15/0928

    Abstract: A development device includes a development case, a first agitating/conveying member and a second agitating/conveying member. The first agitating/conveying member is arranged below the second agitating/conveying member to convey the developer in a first direction. The second agitating/conveying member conveys the developer in a second direction as an opposite direction to the first direction to supply the developer to the developer carrier. The development case includes a first conveyance chamber, a second conveyance chamber, a first communicating portion communicating end parts of the first conveyance chamber and second conveyance chamber in the first direction, and a second communicating portion communicating end parts of the first conveyance chamber and second conveyance chamber in the second direction. The developer carrier has a first ferromagnetic area having magnetic force stronger than another area of the developer carrier, in which the first ferromagnetic area corresponds to the first communicating portion.

    Abstract translation: 显影装置包括显影盒，第一搅拌/输送构件和第二搅拌/输送构件。 第一搅拌/输送构件布置在第二搅拌/输送构件下方以沿第一方向输送显影剂。 第二搅拌/输送构件沿与第一方向相反的方向沿第二方向输送显影剂，以将显影剂供应至显影剂载体。 显影箱包括第一输送室，第二输送室，第一输送室和第二输送室的端部沿第一方向连通的第一连通部，以及连通第一输送室的端部和第二输送室的第二连通部 输送室在第二方向。 显影剂载体具有第一铁磁区域，其具有比显影剂载体的另一区域更强的磁力，其中第一铁磁区域对应于第一连通部分。

    IMAGE FORMING APPARATUS
    7.
    发明公开
    IMAGE FORMING APPARATUS 审中-公开

    公开(公告)号：US20240142891A1

    公开(公告)日：2024-05-02

    申请号：US18489272

    申请日：2023-10-18

    Applicant: KYOCERA Document Solutions Inc.

    Inventor： Minoru WADA ,  Takahiro OKUBO ,  Takeru NAGAMOTO

    IPC: G03G15/08 ,  G03G9/08

    CPC classification number: G03G15/0812 ,  G03G9/0821 ,  G03G15/0818 ,  G03G2215/0617

    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 which contains a non-magnetic one-component developer and a developer carrying member which includes a rotary shaft and a roller portion stacked on the outer circumferential surface of the rotary shaft, and the resistance value of the roller portion is 9 to 11 [Log Ω], and when the amount of toner conveyed on the developer carrying member is Md [g/m2], the amount of toner adhered on the image carrying member in a solid image is Mp [g/m2], the peripheral speed of the developer carrying member and the image carrying member are Sd [mm/sec] and Sp [mm/sec], 0.8×Sd/Sp

    CONTROL SYSTEM, MANAGEMENT APPARATUS, AND IMAGE FORMING APPARATUS THAT PERFORM CONTROL WHEN ABNORMALITY OCCURS IN IMAGE FORMING APPARATUS
    8.
    发明申请
    CONTROL SYSTEM, MANAGEMENT APPARATUS, AND IMAGE FORMING APPARATUS THAT PERFORM CONTROL WHEN ABNORMALITY OCCURS IN IMAGE FORMING APPARATUS 审中-公开

    公开(公告)号：US20200236239A1

    公开(公告)日：2020-07-23

    申请号：US16733709

    申请日：2020-01-03

    Applicant: KYOCERA Document Solutions Inc.

    Inventor： Minoru WADA

    IPC: H04N1/00 ,  G06F1/3206

    Abstract: A control system includes: image forming apparatuses at least one of which is installed in each of a plurality of areas in a building; a management apparatus; and alarms that are each provided for each of the areas, respectively. The management apparatus manages security of the building including the plurality of areas, detects an abnormal high temperature occurrence area by identifying the area in which the image forming apparatus from which the abnormal high temperature is detected is installed when the abnormal high temperature is detected in the image forming apparatus, and transmits a report command notification for reporting that the abnormal high temperature has occurred in the area in which an alarm is provided to the alarm which is provided in the abnormal high temperature occurrence area.

    IMAGE FORMING APPARATUS THAT ENSURES SETTING SURFACE POTENTIAL OF PHOTORECEPTOR DRUM WITH SIMPLE CONSTITUTION
    10.
    发明申请
    IMAGE FORMING APPARATUS THAT ENSURES SETTING SURFACE POTENTIAL OF PHOTORECEPTOR DRUM WITH SIMPLE CONSTITUTION 有权

    公开(公告)号：US20170090334A1

    公开(公告)日：2017-03-30

    申请号：US15277751

    申请日：2016-09-27

    Applicant: KYOCERA Document Solutions Inc.

    Inventor： Minoru WADA ,  Masaru HATANO ,  Masaki KADOTA ,  Masahito ISHINO ,  Keisuke ISODA ,  Atsushi ISHIZAKI

    IPC: G03G15/02

    CPC classification number: G03G15/0266 ,  G03G15/065

    Abstract: An image forming includes an apparatus main body, a photoreceptor drum, a charging apparatus, a developing device, a transfer apparatus, a charging bias applying unit, a developing bias applying unit, a bias adjusting unit, and a print density measurement unit. The bias adjusting unit forms a non-charged area on a circumference surface of the photoreceptor drum and applies a developing bias constituted of a first electric potential to a developing roller to form a first toner image by an electric potential difference between the non-charged area and the developing roller. The charging bias applying unit forms a second toner image by an electric potential difference between the electric potential area and the developing roller. The charging bias applying unit decides a value of a charging bias corresponding to a target electric potential from measurement results of print densities of the first toner image and the second toner image.

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