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11. 发明授权

US10365581B1 Developing device and image forming apparatus including same 有权
公开(公告)号：US10365581B1
公开(公告)日：2019-07-30
申请号：US16207961
申请日：2018-12-03
申请人： KYOCERA Document Solutions Inc.
发明人： Hiroyuki Hamakawa , Kenichi Tamaki
IPC分类号： G03G15/09 , G03G15/08 , G03G21/10
摘要： 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.

12. 发明授权

US09857732B2 Developing device and image forming apparatus provided with same 有权
公开(公告)号：US09857732B2
公开(公告)日：2018-01-02
申请号：US15456965
申请日：2017-03-13
申请人： KYOCERA Document Solutions Inc.
发明人： Tamotsu Shimizu , Kenichi Tamaki
IPC分类号： G03G15/08 , G03G15/09
CPC分类号： G03G15/0889 , G03G15/0808 , G03G15/0812 , G03G15/0907 , G03G15/0921
摘要： 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.

13. 发明申请

US20170269510A1 DEVELOPING DEVICE AND IMAGE FORMING APPARATUS PROVIDED WITH SAME 审中-公开
公开(公告)号：US20170269510A1
公开(公告)日：2017-09-21
申请号：US15457063
申请日：2017-03-13
申请人： KYOCERA Document Solutions Inc.
发明人： Kenichi Tamaki , Tamotsu Shimizu , Akifumi Yamaguchi
IPC分类号： G03G15/09
CPC分类号： G03G15/0889 , G03G15/0812 , G03G15/0907 , G03G15/0921
摘要： 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.

14. 发明申请

US20160161879A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20160161879A1
公开(公告)日：2016-06-09
申请号：US14960068
申请日：2015-12-04
申请人： KYOCERA Document Solutions Inc.
发明人： Shinji Otani , Norio Kubo , Masashi Fujishima , Koji Suenami , Yoshimi Shimizu , Kenichi Tamaki
IPC分类号： G03G21/00
CPC分类号： G03G15/0275 , G03G15/09 , G03G15/169 , G03G21/08
摘要： 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.
摘要翻译：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。

15. 发明授权

US12007712B2 Image forming apparatus 有权
公开(公告)号：US12007712B2
公开(公告)日：2024-06-11
申请号：US18332143
申请日：2023-06-09
申请人： KYOCERA Document Solutions Inc.
发明人： Junichi Nakagawa , Tamotsu Shimizu , Hiroshi Yamazaki , Kenichi Tamaki , Takuji Watanabe
IPC分类号： G03G21/00 , G03G7/00 , G03G15/08 , G03G21/20
CPC分类号： G03G21/0052 , G03G7/0013 , G03G15/0808 , G03G15/081 , G03G15/0889 , G03G21/206 , G03G2215/085 , G03G2221/0021
摘要： 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 by a cleaning unit through intermediation of an image bearing member. An absolute value of a perpendicular-magnetic-force gradient of a fixed magnet of the developer carrying member is 4.0 mT/° or less at a position where the fixed magnet faces a central portion of the filter in a rotation direction of a developing sleeve.

16. 发明授权

US12001152B2 Toner charging state determination method and image forming apparatus 有权
公开(公告)号：US12001152B2
公开(公告)日：2024-06-04
申请号：US18147207
申请日：2022-12-28
申请人： KYOCERA Document Solutions Inc.
发明人： Kenichi Tamaki
IPC分类号： G03G15/08
CPC分类号： G03G15/0848
摘要： A processor causes a printing portion to execute test image transfer processing for transferring a plurality of test toner images onto an area outside a secondary transfer area on a surface of an intermediate transfer member, and secondary voltage stop processing for stopping a supply of a secondary transfer voltage. The processor acquires a plurality of first sensing densities. The processor causes the printing portion to execute the test image transfer processing and secondary voltage supply processing for supplying the secondary transfer voltage. The processor acquires a plurality of second sensing densities. The processor compares the plurality of first sensing densities and the plurality of second sensing densities to determine a state of a toner charging amount in each of the plurality of test toner images.

17. 发明授权

US10175608B2 Developing device and image forming apparatus provided with same 有权
公开(公告)号：US10175608B2
公开(公告)日：2019-01-08
申请号：US15457063
申请日：2017-03-13
申请人： KYOCERA Document Solutions Inc.
发明人： Kenichi Tamaki , Tamotsu Shimizu , Akifumi Yamaguchi
IPC分类号： G03G15/08 , G03G15/09
摘要： 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.

18. 发明授权

US09846389B2 Developer supply control in electrophotographic type image forming apparatus 有权
公开(公告)号：US09846389B2
公开(公告)日：2017-12-19
申请号：US15299199
申请日：2016-10-20
申请人： KYOCERA Document Solutions Inc.
发明人： Kenichi Tamaki
IPC分类号： G03G15/08
CPC分类号： G03G15/0891 , G03G15/0893
摘要： An image forming apparatus includes a developing portion, a first rotation control portion, and a second rotation control portion. The developing portion has a conveying member configured to convey a developer within a circulation-conveyance passage, and a reducing portion provided in the conveying member and configured to reduce an ability to convey the developer. The first rotation control portion is configured to rotate the conveying member at a predetermined first speed when a printing process is executed. The second rotation control portion is configured to suspend execution of the printing process and rotate the conveying member at a second speed lower than the first speed, when an average coverage rate per page of a printed matter having a predetermined reference number of consecutively printed pages exceeds a predetermined threshold.

19. 发明申请

US20170269509A1 DEVELOPING DEVICE AND IMAGE FORMING APPARATUS PROVIDED WITH SAME 有权
公开(公告)号：US20170269509A1
公开(公告)日：2017-09-21
申请号：US15456965
申请日：2017-03-13
申请人： KYOCERA Document Solutions Inc.
发明人： Tamotsu Shimizu , Kenichi Tamaki
IPC分类号： G03G15/09
CPC分类号： G03G15/0889 , G03G15/0808 , G03G15/0812 , G03G15/0907 , G03G15/0921
摘要： 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.

20. 发明授权

US09235162B2 Developer storage container and image forming apparatus with same 有权
标题翻译：显影剂储存容器及其成像装置
公开(公告)号：US09235162B2
公开(公告)日：2016-01-12
申请号：US14090268
申请日：2013-11-26
申请人： KYOCERA Document Solutions Inc.
发明人： Ikuo Makie , Kenichi Tamaki , Minoru Wada , Shizuka Okada , Tamotsu Shimizu
IPC分类号： G03G15/08
CPC分类号： G03G15/0879 , G03G2215/0827 , G03G2215/083 , G03G2215/0833
摘要： A developer storage container includes a container main body, a tubular portion projecting from the container main body, and a rotary member extending from the container main body to the tubular portion. The rotary member includes a first section located in the container main body and a second section located in the tubular portion. A first conveying member for conveying developer in a first conveying direction is arranged on the second section of a rotary shaft, and a second conveying member for conveying the developer in a second conveying direction is arranged radially outwardly of the first conveying member around the first section. A first flexible member radially extending to a side outward of the second conveying member and a second flexible member radially extending to a side outward of the second conveying member and having a shorter length than the first flexible member are mounted on the rotary shaft.
摘要翻译：显影剂储存容器包括容器主体，从容器主体突出的管状部分和从容器主体延伸到管状部分的旋转部件。旋转构件包括位于容器主体中的第一部分和位于管状部分中的第二部分。用于在第一输送方向上输送显影剂的第一输送构件设置在旋转轴的第二部分上，并且用于沿第二输送方向输送显影剂的第二输送构件围绕第一部分径向向外设置在第一输送构件的外侧。径向延伸到第二输送构件外侧的第一柔性构件和径向延伸到第二输送构件的外侧并具有比第一柔性构件更短的长度的第二柔性构件安装在旋转轴上。

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