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11.发明授权公开(公告)号：US09983499B2
公开(公告)日：2018-05-29
申请号：US15464860
申请日：2017-03-21
Applicant: KYOCERA Document Solutions Inc.
Inventor： Kenichi Tamaki , Tamotsu Shimizu , Hiroka Itani
CPC classification number: G03G15/0241 , G03G15/6552 , G03G21/06
Abstract: A discharging member includes an electrically conductive knit fabric, a support member, and a first magnet member. The conductive knit fabric is knitted into a cylindrical shape with use of yarn formed by twisting together a plurality of metal fibers. The support member is cylindrical shaped and inserted in the conductive knit fabric. The first magnet member is placed inside the support member. With the conductive knit fabric grounded or with a voltage applied to the conductive knit fabric, the discharging member is placed in noncontact with a discharged member in such a fashion that the first magnet member is opposed to the discharged member with the support member and the conductive knit fabric interposed therebetween.
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12.发明授权Developer case that suppresses clogging due to developer, developer replenishment unit having the same, and image forming apparatus having the same 有权抑制由显影剂堵塞的显影剂盒，具有该阻挡剂的显影剂补充单元，以及具有该堵塞的图像形成装置公开(公告)号：US08989634B2
公开(公告)日：2015-03-24
申请号：US13630718
申请日：2012-09-28
Applicant: Kyocera Document Solutions Inc.
Inventor： Kenichi Tamaki , Takahisa Nakaue , Tamotsu Shimizu , Ikuo Makie , Eiji Nimura , Koji Kuramashi , Masaki Hayashi , Yoshihiro Yamagishi
IPC: G03G15/08
CPC classification number: G03G15/0891 , G03G15/0877
Abstract: A developer case includes a main body, a first transportation portion, a first transportation member, a supply member, a discharge port, and a second transportation portion. The main body contains developer. The first transportation portion has a first region that receives developer from the main body and a second region that extends from the first region in a first direction. The first transportation member transports developer in the first direction. The supply member supplies developer to the first region. Developer is discharged through the discharge port. The second transportation portion has an inlet port communicating with the second region. Developer that has not been discharged through the discharge port is supplied to the second transportation portion through the inlet port. The second transportation portion transports developer in a second direction.
Abstract translation: 显影剂盒包括主体，第一输送部，第一输送部件，供给部件，排出口以及第二输送部。 主体包含开发者。 第一输送部分具有从主体接收显影剂的第一区域和从第一区域沿第一方向延伸的第二区域。 第一批运输工具运输开发商的第一个方向。 供应商向第一个地区供应开发商。 显影剂通过排放口排出。 第二输送部具有与第二区域连通的入口。 未通过排出口排出的显影剂通过入口供给到第二输送部。 第二输送部分沿第二方向输送显影剂。
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公开(公告)号：US12092993B2
公开(公告)日：2024-09-17
申请号：US18332440
申请日：2023-06-09
Applicant: KYOCERA Document Solutions Inc.
Inventor： Kenichi Tamaki , Hiroshi Yamazaki , Junichi Nakagawa , Takuji Watanabe , Tamotsu Shimizu
CPC classification number: G03G21/206 , G03G15/0848 , G03G15/0898 , G03G15/0921
Abstract: Provided is an image forming apparatus in which, while image formation is prevented from being performed, scattered toner that has dropped from a filter and adhered to an outer peripheral surface of a developer carrying member is recovered. A fixed magnet of the developer carrying member has a first pole that is arranged to face the filter, and a second pole and a third pole on a downstream side relative to the first pole. The first pole and the second pole have polarities opposite to each other, and the second pole and the third pole have a same polarity. A length of a gap between the developing container and an area where the developing sleeve faces the second pole among areas of the developing sleeve is smaller than a length between the developing sleeve and the filter.
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公开(公告)号：US11977350B2
公开(公告)日：2024-05-07
申请号：US18331671
申请日：2023-06-08
Applicant: KYOCERA Document Solutions Inc.
Inventor： Junichi Nakagawa , Tamotsu Shimizu , Hiroshi Yamazaki , Kenichi Tamaki , Takuji Watanabe
CPC classification number: G03G21/206 , G03G15/0266 , G03G15/065 , G03G15/09 , G03G15/5008 , G03G21/0047 , G03G21/0052 , G03G21/10 , G03G21/105 , G03G21/1814 , G03G2215/00025 , G03G2221/1645
Abstract: An image forming apparatus includes an image carrier, a cleaning unit, a development device, and a control unit. The development device includes a toner collection mechanism having a developer carrier and a filter. The control unit is capable of executing a scattered toner recovery mode at non-image forming time, in which the filter is vibrated, a potential difference is generated in the direction for the toner to move from the developer carrier to the image carrier, the developer carrier is rotated in a reverse direction to that at image forming time, and the image carrier is rotated in the same direction as that at the image forming time, so that scattered toner, which has dropped from the filter and adhered to the developer carrier, is recovered by the cleaning unit via the image carrier.
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公开(公告)号：US11307512B2
公开(公告)日：2022-04-19
申请号：US17165370
申请日：2021-02-02
Applicant: KYOCERA Document Solutions Inc.
Inventor： Kazunori Tanaka , Kanako Morimoto , Tamotsu Shimizu , Kenichi Tamaki
Abstract: An image forming apparatus includes a toner charge amount predictor, a toner developing resistance calculator, and a determiner. The toner developing resistance calculator calculates a toner developing resistance on the basis of a bias voltage applied to a developing device and a measured developing current by dividing a value of the bias voltage by a value of the developing current when a developing device develops an electrostatic latent image formed on the surface of an image carrier to form a toner image. The toner charge amount predictor predicts a toner charge amount of a toner which is supplied to the image carrier by the developing device on the basis of a density of the toner image and the developing current. The determiner determines a state of the developing device on the basis of the toner charge amount and the toner developing resistance.
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Patent Agency Ranking
公开(公告)号：US10691052B2
公开(公告)日：2020-06-23
申请号：US16554448
申请日：2019-08-28
Applicant: KYOCERA Document Solutions Inc.
Inventor： Tamotsu Shimizu , Akifumi Yamaguchi , Yasuhiro Tauchi , Kenichi Tamaki , Koji Suenami
IPC: G03G15/00
Abstract: In the first charge amount acquisition operation, based on density of a plurality of toner images for measurement or based on a direct component of a developing current at the time of forming the plurality of toner images in addition to the density of the plurality of toner images for measurement, the charge amount acquisition section acquires a first toner charge amount that is a charge amount of toner included in the toner image for measurement. In the second charge amount acquisition operation, based on the toner density detected at the time of image formation and a relationship between the first toner charge amount and the toner density detected in the first charge amount acquisition operation, the charge amount acquisition section acquires a second toner charge amount that is a charge amount of the toner in the development device.
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公开(公告)号：US10365581B1
公开(公告)日：2019-07-30
申请号：US16207961
申请日：2018-12-03
Applicant: KYOCERA Document Solutions Inc.
Inventor： Hiroyuki Hamakawa , Kenichi Tamaki
Abstract: A developing device includes a developing container, a first stirring and conveying member, a second stirring and conveying member, a developer replenishing port, a developer discharging portion, a developing roller, a toner supply roller, a regulating blade, a toner receiver member, and a vibration generating device. The developing device is capable of executing a toner collecting mode in which the vibration generating device vibrates the toner receiver member so that toner deposited on the toner receiver member is shaken off by vibration and is collected into the second conveying chamber, in the non-image formation period. The developing device is capable of executing a forced discharge mode in which developer containing the collected toner collected from the toner receiver member into the second conveying chamber is forcibly discharged from the developer discharging portion to outside of the developing container, after the toner collecting mode is executed.
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公开(公告)号：US09857732B2
公开(公告)日：2018-01-02
申请号：US15456965
申请日：2017-03-13
Applicant: KYOCERA Document Solutions Inc.
Inventor： Tamotsu Shimizu , Kenichi Tamaki
CPC classification number: G03G15/0889 , G03G15/0808 , G03G15/0812 , G03G15/0907 , G03G15/0921
Abstract: A developing device includes a developing roller and a conveyor roller. The developing roller includes a first magnet. The conveyor roller includes a second magnet. The first magnet includes a first magnetic pole and a second magnetic pole. The second magnet includes a third magnetic pole and a fourth magnetic pole. The first and fourth magnetic poles are magnetic poles having the same polarity. One of the second and third magnetic poles is a magnetic pole having the same polarity as the first magnetic pole. The other of the second and third magnetic poles is a magnetic pole having a polarity different from the first magnetic pole. The developer is transferred from the conveyor roller to the developing roller by the third and second magnetic poles. The developer is transferred from the developing roller to the conveyor roller by the first and fourth magnetic poles.
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公开(公告)号：US20170269510A1
公开(公告)日：2017-09-21
申请号：US15457063
申请日：2017-03-13
Applicant: KYOCERA Document Solutions Inc.
Inventor： Kenichi Tamaki , Tamotsu Shimizu , Akifumi Yamaguchi
IPC: G03G15/09
CPC classification number: G03G15/0889 , G03G15/0812 , G03G15/0907 , G03G15/0921
Abstract: A developing device includes a developing roller, a conveyor roller and a developer stirring unit. The developing roller is arranged to face a photoconductive drum at a predetermined developing position. The developing roller includes a fixed first magnet and a first sleeve. The conveyor roller is arranged to face the developing roller at a predetermined facing position. The conveyor roller includes a fixed second magnet and a second sleeve. The developer stirring unit stirs the developer and supplies the developer to the conveyor roller. The first magnet includes a first magnetic pole composed of a predetermined magnetic pole and a second magnetic pole arranged downstream of and adjacent to the first magnetic pole and having the same polarity as the first magnetic pole. The developer is transferred from the developing roller to the conveyor roller after passing through a repulsive magnetic field formed by the first and second magnetic poles.
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公开(公告)号：US20160161879A1
公开(公告)日：2016-06-09
申请号：US14960068
申请日：2015-12-04
Applicant: KYOCERA Document Solutions Inc.
Inventor： Shinji Otani , Norio Kubo , Masashi Fujishima , Koji Suenami , Yoshimi Shimizu , Kenichi Tamaki
IPC: G03G21/00
CPC classification number: G03G15/0275 , G03G15/09 , G03G15/169 , G03G21/08
Abstract: In the case where development is performed by a two-component developing method, a previous charge removal light-emitting portion applies charge removal light to a first charge removal target region of an effective outer circumferential surface of a photosensitive member on which effective outer circumferential surface an electrostatic latent image can be formed. The first charge removal target region includes a part of a magnetic brush contact region of the effective outer circumferential surface and a region of the effective outer circumferential surface between the magnetic brush contact region and a transfer position of a toner image.
Abstract translation: 在通过双组分显影方法进行显影的情况下，先前的电荷去除发光部分将电荷去除光施加到感光部件的有效外周表面的第一电荷去除目标区域， 可以形成静电潜像。 第一电荷去除目标区域包括有效外周表面的磁刷接触区域的一部分和磁刷接触区域和调色剂图像的转印位置之间的有效外圆周表面的区域。
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