公开(公告)号：US12111600B2

公开(公告)日：2024-10-08

申请号：US18200584

申请日：2023-05-23

申请人： Kazuhiro Shimada ,  Seiichi Kogure ,  Hideki Kimura ,  Hiroshi Kikuchi ,  Yusuke Ishizuka ,  Yutaka Takahashi ,  Takuya Akiyama ,  Yutaka Goto ,  Yuuki Aoki

发明人： Kazuhiro Shimada ,  Seiichi Kogure ,  Hideki Kimura ,  Hiroshi Kikuchi ,  Yusuke Ishizuka ,  Yutaka Takahashi ,  Takuya Akiyama ,  Yutaka Goto ,  Yuuki Aoki

IPC分类号： G03G21/10 ,  G03G15/08 ,  G03G21/12 ,  G03G21/16

CPC分类号： G03G21/105 ,  G03G15/0844 ,  G03G15/0858 ,  G03G15/0877 ,  G03G15/0886 ,  G03G15/0891 ,  G03G15/0896 ,  G03G21/10 ,  G03G21/12 ,  G03G21/1647 ,  G03G2215/0802 ,  G03G2221/0005

摘要： A powder conveying device includes a drop conveyance passage, an intersecting conveyance passage, a conveying screw, and a floating member. Powder entering from an inflow port drops in the drop conveyance passage. The intersecting conveyance passage communicates with a lower end of the drop conveyance passage and extends in an intersecting direction that intersects the drop conveyance passage. The conveying screw is disposed in the intersecting conveyance passage and rotates in a specified direction to convey the powder in the intersecting direction. The floating member is movably installed in the drop conveyance passage and floats in the drop conveyance passage to move by contact with the conveying screw. The inflow port and the floating member interfere with each other to prevent the floating member from coming out of the inflow port of the drop conveyance passage.

公开(公告)号：US20220317601A1

公开(公告)日：2022-10-06

申请号：US17707315

申请日：2022-03-29

申请人： Yuuki Aoki ,  Seiichi Kogure ,  Hideki Kimura ,  Hiroshi Kikuchi ,  Yutaka Takahashi ,  Yusuke Ishizuka ,  Takuya Akiyama ,  Yutaka Goto ,  Kazuhiro Shimada

发明人： Yuuki Aoki ,  Seiichi Kogure ,  Hideki Kimura ,  Hiroshi Kikuchi ,  Yutaka Takahashi ,  Yusuke Ishizuka ,  Takuya Akiyama ,  Yutaka Goto ,  Kazuhiro Shimada

IPC分类号： G03G15/16

摘要： An image forming apparatus includes an image bearer; a nip forming member configured to form a transfer nip between the image bearer and the nip forming member; a nip pressure changer configured to change a nip pressure of the transfer nip; a transfer bias applier configured to apply, to the transfer nip, a transfer bias in which an AC component is superimposed on a DC component; and a DC component adjuster configured to adjust the DC component in the transfer bias, according to the nip pressure that is changed by the nip pressure changer.

公开(公告)号：US20210063919A1

公开(公告)日：2021-03-04

申请号：US16999453

申请日：2020-08-21

申请人： Atsushi Nakamoto ,  Seiichi Kogure ,  Daisuke Hamada ,  Takuya Akiyama ,  Yuuki Aoki ,  Yutaka Goto

发明人： Atsushi Nakamoto ,  Seiichi Kogure ,  Daisuke Hamada ,  Takuya Akiyama ,  Yuuki Aoki ,  Yutaka Goto

IPC分类号： G03G15/16

摘要： A belt running device includes a plurality of rollers, a belt, a guide, a regulating member, and an abutting member. The belt is wound around the plurality of rollers and configured to rotate. The guide is provided at an end of an inner peripheral surface of the belt. The regulating member is provided at an end of at least one roller of the plurality of rollers in the axial direction of the at least one roller and configured to contact the guide and regulate a movement of the belt in the axial direction of the at least one roller. The abutting member is configured to contact an outer peripheral surface of the belt to press the belt inward in a vicinity of a contact start point at which the guide and the regulating member start to contact when the belt runs.

公开(公告)号：US10527974B2

公开(公告)日：2020-01-07

申请号：US16057135

申请日：2018-08-07

申请人： Seiichi Kogure ,  Junpei Fujita

发明人： Seiichi Kogure ,  Junpei Fujita

IPC分类号： G03G15/16 ,  G03G15/01 ,  G03G21/16

摘要： A belt device includes an endless belt, a support shaft, a contact member, a frame, and a regulating member. The contact member is configured to contact the belt. The support shaft is configured to support the contact member and rotate together with the contact member. The frame is configured to support the support shaft. The regulating member is configured to regulate movement of the contact member. The regulating member is configured to move relative to the frame, in a direction that crosses an axial direction of the support shaft, from a regulating position to regulate movement of the support shaft in an axial direction of the support shaft.

公开(公告)号：US10152001B2

公开(公告)日：2018-12-11

申请号：US15690484

申请日：2017-08-30

申请人： Naohiro Kumagai ,  Seiichi Kogure ,  Junpei Fujita ,  Kazuki Yogosawa ,  Kenji Sugiura ,  Yuuji Wada

发明人： Naohiro Kumagai ,  Seiichi Kogure ,  Junpei Fujita ,  Kazuki Yogosawa ,  Kenji Sugiura ,  Yuuji Wada

IPC分类号： G03G15/16

摘要： An image forming apparatus includes an image bearer, an intermediate transferor, a secondary transferor, a plurality of rotators including a secondary driving rotator, and a detector. The image bearer bears a detection image. The detection image is transferred from the image bearer to the intermediate transferor at a primary transfer position. The secondary transferor is looped around the plurality of rotators and disposed in contact with the intermediate transferor at a secondary transfer position where the detection image is transferred from the intermediate transferor to the secondary transferor. The secondary driving rotator drives the secondary transferor. The detector detects the detection image on the secondary transferor at a detection position. With this configuration, a distance from the secondary transfer position to the detection position on the secondary transferor is an integral multiple of a circumference of the secondary driving rotator.

公开(公告)号：US09817341B2

公开(公告)日：2017-11-14

申请号：US15073983

申请日：2016-03-18

申请人： Tatsuya Ohsugi ,  Kenji Sugiura ,  Hirokazu Ishii ,  Hiroyoshi Haga ,  Naohiro Kumagai ,  Seiichi Kogure ,  Takehide Mizutani ,  Junpei Fujita ,  Yuuji Wada ,  Kazuki Yogosawa ,  Naoto Kochi

发明人： Tatsuya Ohsugi ,  Kenji Sugiura ,  Hirokazu Ishii ,  Hiroyoshi Haga ,  Naohiro Kumagai ,  Seiichi Kogure ,  Takehide Mizutani ,  Junpei Fujita ,  Yuuji Wada ,  Kazuki Yogosawa ,  Naoto Kochi

IPC分类号： G03G15/20 ,  G03G15/16

CPC分类号： G03G15/1665 ,  G03G15/1605 ,  G03G15/1675 ,  G03G2215/0129 ,  G03G2215/1623

摘要： An image forming apparatus includes a plurality of image bearers, a transfer bias member, and a power source. When the transfer bias member transfers a color toner image onto a recording sheet, a second peak value of a peak-to-peak of a transfer bias, which is smaller than a first peak value of the peak-to-peak in an electrostatic force to move toner from the image bearers or an intermediate transfer body to the recording sheet, is zero or has a first polarity to generate the electrostatic force in a transfer direction to move toner from the image bearers or the intermediate transfer body to the recording sheet. When the transfer bias member transfers a monochromatic toner image including only black toner onto the recording sheet, the second peak value is zero or has a second polarity to generate an electrostatic force in an opposite direction to the transfer direction.

公开(公告)号：US20170235258A1

公开(公告)日：2017-08-17

申请号：US15427735

申请日：2017-02-08

申请人： Yuuji WADA ,  Naoto KOCHI ,  Hiroki NAKAMATSU ,  Kazuki YOGOSAWA ,  Takahiro SUZUKI ,  Shinya TANAKA ,  Kenji SUGIURA ,  Naohiro KUMAGAI ,  Seiichi KOGURE ,  Junpei FUJITA ,  Hirokazu ISHII ,  Takehide MIZUTANI ,  Atsushi NAGATA ,  Keigo NAKAMURA

发明人： Yuuji WADA ,  Naoto KOCHI ,  Hiroki NAKAMATSU ,  Kazuki YOGOSAWA ,  Takahiro SUZUKI ,  Shinya TANAKA ,  Kenji SUGIURA ,  Naohiro KUMAGAI ,  Seiichi KOGURE ,  Junpei FUJITA ,  Hirokazu ISHII ,  Takehide MIZUTANI ,  Atsushi NAGATA ,  Keigo NAKAMURA

IPC分类号： G03G15/16

CPC分类号： G03G15/1675 ,  G03G15/1605 ,  G03G15/5029 ,  G03G2215/00738

摘要： An improved image forming apparatus includes an image bearer, a nip forming member, a transfer power source, and a controller. The controller switches a transfer mode between a first mode to transfer the toner image onto a first type sheet having a surface smoothness higher than a surface smoothness of a second type sheet and a second mode to transfer the toner image onto the second type sheet. The controller controls the transfer power source to output the transfer bias having an opposite-peak duty of greater than or equal to 50% that is a duty on the side of the opposite-peak value in the first mode. The controller controls the transfer power source to output the transfer bias having an opposite-peak duty of less than 50%, which is different from the opposite-peak duty of the first mode, in the second mode.

公开(公告)号：US09690246B2

公开(公告)日：2017-06-27

申请号：US14969216

申请日：2015-12-15

申请人： Seiichi Kogure ,  Naohiro Kumagai ,  Junpei Fujita ,  Kazuki Yogosawa ,  Tatsuya Ohsugi ,  Kenji Sugiura ,  Yuuji Wada ,  Takehide Mizutani

发明人： Seiichi Kogure ,  Naohiro Kumagai ,  Junpei Fujita ,  Kazuki Yogosawa ,  Tatsuya Ohsugi ,  Kenji Sugiura ,  Yuuji Wada ,  Takehide Mizutani

IPC分类号： G03G15/16 ,  G03G15/00 ,  G03G21/16

CPC分类号： G03G15/161 ,  G03G15/16 ,  G03G15/1605 ,  G03G15/1615 ,  G03G15/1665 ,  G03G15/1675 ,  G03G15/168 ,  G03G15/1695 ,  G03G15/6529 ,  G03G15/6555 ,  G03G15/6558 ,  G03G21/1647 ,  G03G2215/00409 ,  G03G2215/0129 ,  G03G2221/1642

摘要： An image forming apparatus includes a belt-shaped image bearer, a transferer, a guide unit, and a plurality of contact members. The belt-shaped image bearer has an image bearing surface to bear an image thereon. The transferer forms a transfer section between the transferer and the image bearer, to transfer the image onto a recording medium. The guide unit is disposed upstream from the transfer section in a delivery direction of the recording medium, to guide the recording medium toward the transfer section. The plurality of contact members are disposed side by side at positions opposing the guide unit and in contact with a non image bearing surface of the image bearer opposite to the image bearing surface.

公开(公告)号：US09632461B2

公开(公告)日：2017-04-25

申请号：US14956707

申请日：2015-12-02

申请人： Kenji Sugiura ,  Toshitaka Yamaguchi ,  Hiroyoshi Haga ,  Hirokazu Ishii ,  Shinya Tanaka ,  Takehide Mizutani ,  Yuuji Wada ,  Tatsuya Ohsugi ,  Naohiro Kumagai ,  Seiichi Kogure ,  Junpei Fujita ,  Kazuki Yogosawa

发明人： Kenji Sugiura ,  Toshitaka Yamaguchi ,  Hiroyoshi Haga ,  Hirokazu Ishii ,  Shinya Tanaka ,  Takehide Mizutani ,  Yuuji Wada ,  Tatsuya Ohsugi ,  Naohiro Kumagai ,  Seiichi Kogure ,  Junpei Fujita ,  Kazuki Yogosawa

IPC分类号： G03G15/16 ,  G03G21/20

CPC分类号： G03G15/1665 ,  G03G15/1675 ,  G03G21/20

摘要： An image forming apparatus includes an image bearer, a toner image forming device, a nip forming device, a power source, a controller, and a temperature-and-humidity detector. The toner image forming device forms a toner image on the image bearer. The nip forming device contacts the image bearer to form a transfer nip. The power source outputs a transfer bias, in which an alternating current component is superimposed on a direct current component, to transfer the toner image onto a recording medium interposed in the transfer nip. The temperature-and-humidity detector detects a temperature and humidity. The controller controls the power source to output the transfer bias including the direct current component with a smaller absolute value as at least one of the detected temperature and humidity increases.

公开(公告)号：US20160216682A1

公开(公告)日：2016-07-28

申请号：US15003938

申请日：2016-01-22

申请人： Kenji SENGOKU ,  Kazuki YOGOSAWA ,  Mitsuru TAKAHASHI ,  Seiichi KOGURE ,  Kenji SUGIURA ,  Hiroyoshi HAGA ,  Junpei FUJITA ,  Takehide MIZUTANI ,  Tatsuya OHSUGI ,  Yuuji WADA

发明人： Kenji SENGOKU ,  Kazuki YOGOSAWA ,  Mitsuru TAKAHASHI ,  Seiichi KOGURE ,  Kenji SUGIURA ,  Hiroyoshi HAGA ,  Junpei FUJITA ,  Takehide MIZUTANI ,  Tatsuya OHSUGI ,  Yuuji WADA

IPC分类号： G03G15/16 ,  G03G21/00

CPC分类号： G03G21/00 ,  G03G15/161 ,  G03G21/0035 ,  G03G21/0058 ,  G03G21/0076 ,  G03G2215/0129 ,  G03G2221/001

摘要： A cleaning device includes a cleaner, a casing, and an exit seal. The cleaner is configured to remove toner from a cleaning target. The casing accommodates the cleaner. The exit seal is attached to the casing and has a free end contacting the cleaning target at a position downward from the cleaner in a direction of movement of the cleaning target and an attached end attached to the casing. A space is disposed between a surface of the cleaning target and an opposite face of the exit seal opposite the cleaning target. The space includes an opening at a lateral end of the exit seal. The exit seal contacts the cleaning target from a trailing direction of the exit seal and seals the opening at at least an attached end side of the exit seal.

摘要翻译： 清洁装置包括清洁器，壳体和出口密封件。 清洁器配置为从清洁目标中去除碳粉。 外壳容纳清洁剂。 出口密封件附接到壳体，并且在清洁对象的移动方向和附接到壳体的附接端部上，在从清洁器向下方的位置处接触清洁对象的自由端。 在清洁对象的表面和与清洁对象物相对的出口密封件的相对面之间设置有空间。 该空间包括在出口密封件的侧端处的开口。 出口密封件从出口密封件的拖尾方向接触清洁目标，并且在出口密封件的至少一个附接端侧密封开口。