公开(公告)号：US20150378284A1

公开(公告)日：2015-12-31

申请号：US14742730

申请日：2015-06-18

Applicant: Yuuji WADA ,  Kenji SUGIURA ,  Naohiro KUMAGAI ,  Seiichi KOGURE ,  Junpei FUJITA ,  Yusuke MITANI ,  Kazuki YOGOSAWA

Inventor： Yuuji WADA ,  Kenji SUGIURA ,  Naohiro KUMAGAI ,  Seiichi KOGURE ,  Junpei FUJITA ,  Yusuke MITANI ,  Kazuki YOGOSAWA

IPC: G03G15/16

CPC classification number: G03G15/1695 ,  G03G15/161 ,  G03G15/1675 ,  G03G15/168

Abstract: An image forming apparatus includes a transfer device to transfer a toner image onto a recording medium with a transfer bias applied thereto, a recording medium conveyor to deliver the recording medium to a transfer region while controlling an alignment of the recording medium having entered the transfer region in alignment control, and a transfer bias controller to obtain a toner adhesion amount information on a post-alignment-control toner image that passes through the transfer region after the recording medium is free from the alignment control, and to reduce, when the toner adhesion amount per unit area is less than a predetermined amount, the transfer bias after the alignment control is released to a level less than that of a transfer bias that is applied when the toner image having a same toner adhesion amount passes through the transfer region before the recording medium is free from the alignment control.

Abstract translation: 图像形成装置包括：转印装置，用于将调色剂图像转印到具有转印偏压的记录介质上;记录介质传送器，用于将记录介质输送到转印区域，同时控制进入转印区域的记录介质的排列 以及转印偏压控制器，以便在记录介质不受对准控制之后获得通过转印区域的调色剂调色剂图像上的调色剂附着量信息，并且当调色剂附着 每单位面积的量小于预定量，则在对准控制之后的转印偏压被释放到低于在具有相同调色剂附着量的调色剂图像通过转印区域之前施加的转印偏压的水平 记录介质没有对准控制。

公开(公告)号：US09042779B2

公开(公告)日：2015-05-26

申请号：US13765063

申请日：2013-02-12

Applicant: Seiichi Kogure ,  Katsuhito Haruno ,  Hiroki Nakamatsu ,  Kazuki Yogosawa

Inventor： Seiichi Kogure ,  Katsuhito Haruno ,  Hiroki Nakamatsu ,  Kazuki Yogosawa

IPC: G03G15/16 ,  G03G15/01

CPC classification number: G03G15/1615 ,  G03G15/0131 ,  G03G2215/0158

Abstract: An image forming apparatus includes a housing and a transfer unit. The transfer unit detachably attachable relative to the housing includes a drive roller, a driven roller disposed opposite the drive roller, a belt formed into a loop and entrained around the drive roller and the driven roller, a frame to support the shaft of the drive roller, and a support member to movably support the shaft of the driven roller to be parallel to an axial direction of the drive roller and movable in a first direction different from the axial direction. A positioning member disposed in the housing holds the shaft of the drive roller parallel, and a restriction member restricts movement of the driven roller in the first direction to keep the shaft of the driven roller parallel to the shaft of the drive roller as the transfer unit is mounted in the image forming apparatus.

Abstract translation: 图像形成装置包括壳体和转印单元。 相对于壳体可拆卸地安装的传送单元包括驱动辊，与驱动辊相对设置的从动辊，形成为环并且夹在驱动辊和从动辊周围的带，支撑驱动辊的轴的框架 以及支撑构件，其可移动地支撑从动辊的轴平行于驱动辊的轴向方向并且可在不同于轴向的第一方向上移动。 设置在壳体中的定位构件将驱动辊的轴平行地保持，并且限制构件限制从动辊沿第一方向的移动，以使从动辊的轴平行于驱动辊的轴作为转印单元 安装在图像形成装置中。

公开(公告)号：US20140321874A1

公开(公告)日：2014-10-30

申请号：US14255306

申请日：2014-04-17

Applicant: Kenji Sugiura ,  Seiichi Kogure ,  Junpei Fujita ,  Junichi Ichikawa ,  Kazuki Yogosawa

Inventor： Kenji Sugiura ,  Seiichi Kogure ,  Junpei Fujita ,  Junichi Ichikawa ,  Kazuki Yogosawa

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

CPC classification number: G03G21/0035 ,  G03G15/161 ,  G03G15/168 ,  G03G2215/0141 ,  G03G2215/1661

Abstract: A cleaner is provided. The cleaner includes at least two cleaning brush members to electrostatically remove residual toner on an object; a memory; a voltage applicator to apply a voltage to the cleaning brush members based on the setup voltage values stored in the memory; a current detector to detect the amounts of currents flowing through contact portions of the object with the cleaning brush members; and a setup voltage changing device to change the setup voltage values based on the amounts of currents detected by the current detector. The setup voltage changing device performs change of the setup voltage values for the cleaning brush members at a time.

Abstract translation: 提供清洁剂。 清洁器包括至少两个清洁刷构件以静电去除物体上的残留调色剂; 记忆 电压施加器，用于基于存储在存储器中的设置电压值向清洁刷构件施加电压; 电流检测器，用于检测通过清洁刷构件流过物体的接触部分的电流量; 以及基于由电流检测器检测的电流量来改变设定电压值的设置电压改变装置。 设置电压改变装置一次执行清洁刷构件的设定电压值的改变。

公开(公告)号：US08843009B2

公开(公告)日：2014-09-23

申请号：US13571875

申请日：2012-08-10

Applicant: Kazuki Yogosawa ,  Nobuto Yokokawa ,  Satoru Uchida ,  Takeshi Fukao ,  Takuya Sekine ,  Hiroki Matsuura ,  Masakazu Imai

Inventor： Kazuki Yogosawa ,  Nobuto Yokokawa ,  Satoru Uchida ,  Takeshi Fukao ,  Takuya Sekine ,  Hiroki Matsuura ,  Masakazu Imai

IPC: G03G15/16 ,  G03G15/00

CPC classification number: G03G15/5058

Abstract: An image forming apparatus includes an image forming mechanism, an image bearing member, a transfer member, a transfer member mount, and an image detector. The image forming mechanism forms a first image and a second image on a surface of the image bearing member. The transfer member is disposed facing the image bearing member and contactable thereagainst to form a transfer nip at which the first image is transferred from the image bearing member to a recording medium. The transfer member mount on which the transfer member is disposed accommodates multiple different sizes of transfer member. The image detector detects the second image on the surface of the image bearing member. The image forming apparatus includes a plurality of interchangeable transfer members, only one of which at any given time faces the image bearing member, and a transfer member switching device to switch between the plurality of transfer members.

Abstract translation: 图像形成装置包括图像形成机构，图像承载部件，转印部件，转印部件安装件和图像检测器。 图像形成机构在图像承载部件的表面上形成第一图像和第二图像。 传送构件被设置为面对图像承载构件并且可与其接触，以形成第一图像从图像承载构件转印到记录介质的转印区。 传送构件安装件上设置有传送构件，容纳多个不同尺寸的传送构件。 图像检测器检测图像承载部件表面上的第二图像。 图像形成装置包括多个可互换传送构件，其中只有一个在任何给定时间面对图像承载构件，并且传送构件切换装置在多个传送构件之间切换。

公开(公告)号：US20140241744A1

公开(公告)日：2014-08-28

申请号：US14185242

申请日：2014-02-20

Applicant: Junichi ICHIKAWA ,  Seiichi KOGURE ,  Junpei FUJITA ,  Kazuki YOGOSAWA ,  Kenji SUGIURA

Inventor： Junichi ICHIKAWA ,  Seiichi KOGURE ,  Junpei FUJITA ,  Kazuki YOGOSAWA ,  Kenji SUGIURA

IPC: G03G15/16

CPC classification number: G03G15/1605 ,  G03G15/1615 ,  G03G2215/0129

Abstract: A transfer device includes a nip forming member to contact a surface of an image bearing member to form a transfer nip therebetween, a pressing device, and a nip pressure changing device. The pressing device includes a plurality of elastic members, to produce a contact pressure between the nip forming member and the image bearing member according to a restoring force of at least one of the elastic members upon deformation of the elastic member. The nip pressure changing device changes an amount of elastic deformation of the elastic member between at least two stages to change a nip pressure of the transfer nip. While the contact pressure is produced by one of the elastic members, the nip pressure changing device changes the amount of elastic deformation of a different elastic member, different from the one that produces the contact pressure, to change the nip pressure of the transfer nip.

Abstract translation: 转印装置包括用于接触图像承载部件的表面以在其间形成转印夹持部的压区形成部件，压紧装置和压区压力改变装置。 按压装置包括多个弹性构件，以在弹性构件变形时根据至少一个弹性构件的恢复力产生夹持形成构件和图像承载构件之间的接触压力。 辊隙压力改变装置在至少两个阶段之间改变弹性构件的弹性变形量，以改变转印辊隙的辊隙压力。 当接触压力由弹性部件之一产生时，辊隙压力改变装置改变不同于产生接触压力的弹性部件的弹性变形量，以改变转印辊隙的辊隙压力。

公开(公告)号：US12189331B2

公开(公告)日：2025-01-07

申请号：US18015083

申请日：2021-08-17

Applicant: Kazuki Yogosawa ,  Tatsuya Kubo ,  Yuuki Tsuchiya ,  Shinya Karasawa

Inventor： Kazuki Yogosawa ,  Tatsuya Kubo ,  Yuuki Tsuchiya ,  Shinya Karasawa

IPC: G03G21/18 ,  G03G15/00 ,  G03G15/01 ,  G03G15/08 ,  G03G15/09 ,  G03G21/16

Abstract: A positioning member defines a facing distance between a first rotating body and a second rotating body. The positioning member includes a fitting portion, a groove, and a restricting member. A fitted portion of the first rotating body is to be rotatably fitted into the fitting portion. The groove has a groove shape extending in a predetermined direction from an opening to an abutting portion. A shaft portion of the second rotating body is to be slidably movable in the groove. The restricting member restricts movement of the shaft portion in the predetermined direction in a state in which the shaft portion abuts on the abutting portion in the groove. The restricting member is detachably disposed on the groove.

公开(公告)号：US20220107605A1

公开(公告)日：2022-04-07

申请号：US17494834

申请日：2021-10-06

Applicant: Hotaru HASHIKAWA ,  Tatsuya KUBO ,  Kazuki YOGOSAWA ,  Yuta YABUTA ,  Takuya SUGANUMA

Inventor： Hotaru HASHIKAWA ,  Tatsuya KUBO ,  Kazuki YOGOSAWA ,  Yuta YABUTA ,  Takuya SUGANUMA

IPC: G03G21/20 ,  B01D46/00

Abstract: A filter holding device includes an opening portion and a filter. The opening portion communicates an inside of the filter holding device with an outside of the filter holding device. The filter includes a first side and a second side. The first side faces the inside of the filter holding device. The second side faces the outside of the filter holding device. The filter has a lower weight density per unit volume at the first side than at the second side. At least a side face of the first side of the filter is covered with an air-impermeable member. The side face is a lateral face of the filter at the first side.

公开(公告)号：US10281848B2

公开(公告)日：2019-05-07

申请号：US15427735

申请日：2017-02-08

Applicant: 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

Inventor： 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: G03G15/16 ,  G03G15/00

Abstract: 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：US10101690B2

公开(公告)日：2018-10-16

申请号：US15596365

申请日：2017-05-16

Applicant: Kenji Sugiura ,  Naohiro Kumagai ,  Seiichi Kogure ,  Junpei Fujita ,  Kazuki Yogosawa ,  Yuuji Wada ,  Jyunya Sakuraba

Inventor： Kenji Sugiura ,  Naohiro Kumagai ,  Seiichi Kogure ,  Junpei Fujita ,  Kazuki Yogosawa ,  Yuuji Wada ,  Jyunya Sakuraba

IPC: G03G15/16

Abstract: An image forming apparatus includes an image bearer including a first image portion to bear a first toner image, a second image portion to bear a second toner image, and a non-image portion to bear an adjustment pattern. A transferor forms a transfer nip with the image bearer. A controller controls the power source to output an image bias as a transfer bias to transfer the first toner image and the second toner image onto a first recording medium and a second recording medium, respectively, in the transfer nip when the first image portion and the second image portion pass through the transfer nip and output a non-image bias as the transfer bias when the non-image portion passes through the transfer nip. The controller performs a constant current control on the image bias and performs a constant voltage control when the image bias switches to the non-image bias.

公开(公告)号：US20180059583A1

公开(公告)日：2018-03-01

申请号：US15690484

申请日：2017-08-30

Applicant: Naohiro KUMAGAI ,  Seiichi Kogure ,  Junpei Fujita ,  Kazuki Yogosawa ,  Kenji Sugiura ,  Yuugi Wada

Inventor： Naohiro KUMAGAI ,  Seiichi Kogure ,  Junpei Fujita ,  Kazuki Yogosawa ,  Kenji Sugiura ,  Yuugi Wada

IPC: G03G15/00 ,  G03G15/16

CPC classification number: G03G15/1605 ,  G03G15/1615

Abstract: 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.