公开(公告)号：US10228639B2

公开(公告)日：2019-03-12

申请号：US15592006

申请日：2017-05-10

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

摘要： An image forming apparatus includes a belt-shaped image bearer, a transferer, a guide, two rotators, and a support. The 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 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 two rotators are disposed upstream from the transfer section in a moving direction of the image bearer and in contact with a non-image bearing surface of the image bearer opposite to the image bearing surface, a first rotator being closer to the transfer section than a second rotator. The support supports the first rotator and the guide and adjusts a position of the first rotator and a position of the guide.

公开(公告)号：US09720364B2

公开(公告)日：2017-08-01

申请号：US14966398

申请日：2015-12-11

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

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

IPC分类号： G03G15/00 ,  G03G15/16

CPC分类号： G03G15/6529 ,  G03G15/1605 ,  G03G15/6558 ,  G03G2215/0129

摘要： An image forming apparatus includes an image bearer having an image bearing face to bear an image thereon; a transferer disposed opposing the image bearer, to transfer the image from the image bearing face onto a recording medium at a transfer section between the transferer and the image bearer; a first guide disposed upstream from the transfer section in a direction of delivery of the recording medium, to guide the recording medium to the transfer section; and a second guide upstream from the first guide and spaced away from the first guide, to guide the recording medium to the transfer section. Each of the first guide and the second guide extends in a lateral direction perpendicular to the direction of delivery. A leading end of the second guide in the direction of delivery is inclined from one end to the other end of the second guide in the lateral direction.

公开(公告)号：US09720355B2

公开(公告)日：2017-08-01

申请号：US15265562

申请日：2016-09-14

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

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

IPC分类号： G03G15/20 ,  G03G15/16

CPC分类号： G03G15/1675 ,  G03G15/1605 ,  G03G15/162 ,  G03G15/1665 ,  G03G15/1685

摘要： An image forming apparatus includes an image bearer, a transfer member, and a power source. The image bearer includes a plurality of layers. The transfer member forms a transfer nip between the image bearer and the transfer member. The power source outputs a transfer bias to transfer a toner image from the image bearer onto a recording sheet in the transfer nip. The transfer bias alternates between a transfer-side bias that causes the toner image to move from the image bearer to the recording sheet, and an opposite-side bias different from the transfer-side bias. A duty ratio of a time period, during which the opposite-side bias is output, relative to one cycle of a waveform, is greater than 50%.

公开(公告)号：US20150147074A1

公开(公告)日：2015-05-28

申请号：US14541279

申请日：2014-11-14

申请人： Yuuji WADA ,  Kenji Sugiura ,  Naohiro Kumagai ,  Seiichi Kogure ,  Junpei Fujita ,  Yusuke Mitani ,  Kazuki Yogosawa

发明人： Yuuji WADA ,  Kenji Sugiura ,  Naohiro Kumagai ,  Seiichi Kogure ,  Junpei Fujita ,  Yusuke Mitani ,  Kazuki Yogosawa

IPC分类号： G03G21/06 ,  G03G15/00

CPC分类号： G03G15/161 ,  G03G15/70 ,  G03G21/0035 ,  G03G21/0047 ,  G03G21/007 ,  G03G21/0076 ,  G03G2215/1661

摘要： A cleaner includes a cleaning member electrostatically removing toner on an object; a first electricity supplier supplying a first voltage (or current) with polarity opposite to that of toner to the cleaning member; a toner collecting member collecting toner from the cleaning member; and a second electricity supplier supplying a second voltage with the polarity greater than the first voltage to the toner collecting member. The first and second electricity suppliers set plural setting values of the first and second voltages smaller than the targeted values of the first and second voltages, and first and second control members of the first and second electricity suppliers output first and second control signals while changing in step-by-step manner so that first and second output members of the first and second electricity suppliers apply the first and second voltage in step-by-step manner before the first and second voltages reach the targeted voltages.

摘要翻译： 清洁器包括静电除去物体上的调色剂的清洁部件; 向所述清洁部件提供极性与调色剂极性相反的第一电压（或电流）的第一电力供应商; 从清洁部件收集调色剂的调色剂收集部件; 以及向所述调色剂收集构件提供极性大于所述第一电压的第二电压的第二电力供应器。 第一和第二电力供应商将第一和第二电压的多个设定值设置为小于第一和第二电压的目标值，并且第一和第二电力供应商的第一和第二控制构件在改变时输出第一和第二控制信号 使得第一和第二电力供应商的第一和第二输出构件在第一和第二电压达到目标电压之前以逐步的方式施加第一和第二电压。

公开(公告)号：US10120304B2

公开(公告)日：2018-11-06

申请号：US15673492

申请日：2017-08-10

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

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

IPC分类号： G03G15/16

摘要： A belt device includes a belt unit including a plurality of rotators and a belt looped around the plurality of rotators. The belt device further includes a frame including a plurality of support portions to support the belt unit, a biasing member to bias the belt unit supported by the frame in a predetermined direction, and an adjuster to adjust a position of at least one of the plurality of support portions.

公开(公告)号：US09897943B2

公开(公告)日：2018-02-20

申请号：US14660128

申请日：2015-03-17

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

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

IPC分类号： G03G15/00 ,  G03G15/16

CPC分类号： G03G15/161 ,  G03G15/1615

摘要： A belt unit is detachably attachable to a body of an image forming apparatus. The belt unit includes a belt, a pressing member, and a frame. The belt is wound around a plurality of supports to travel in a belt travel direction. The belt includes a base layer and an elastic layer. The pressing member presses warping on an edge of the belt. The frame supports the plurality of supports. The pressing member is positioned on the frame.

公开(公告)号：US09811036B2

公开(公告)日：2017-11-07

申请号：US15269093

申请日：2016-09-19

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

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

IPC分类号： G03G15/01 ,  G03G15/00 ,  G03G15/16

CPC分类号： G03G15/5054 ,  G03G15/1615 ,  G03G15/162

摘要： An endless rotatable belt device including an endless rotatable belt, a scale tape bonded on the belt, at least one optical sensor to detect a scale pattern, and auxiliary tape to cover at least one of the first end and the second end of the scale tape of the belt. The scale tape has a first end and a second end and includes at least one scale pattern. The auxiliary tape has a lower surface friction coefficient than the surface friction coefficient of the scale tape.

公开(公告)号：US09405271B2

公开(公告)日：2016-08-02

申请号：US14994873

申请日：2016-01-13

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

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

IPC分类号： G03G21/00 ,  G03G21/16 ,  B41F23/00

CPC分类号： G03G21/169 ,  B41F23/002 ,  G03G15/161 ,  G03G2215/1661 ,  G03G2221/1618

摘要： A cleaning device includes a cleaner, a plurality of cleaning sub-units, a sub-unit holder, a detachable transmission assembly, and a plurality of joint couplers. The cleaner scrapes off adhered material from a surface of a cleaning target while contacting the surface of the cleaning target. The cleaning sub-units each includes a holder to hold the cleaner and a drive-receive rotator to receive a driving force. The sub-unit holder holds the cleaning sub-units. The detachable transmission assembly includes a driving-force receive rotator to receive a driving force from an external unit and a plurality of drive transmission rotators to transmit the driving force received by the driving-force receive rotator to the drive-receive rotators of the cleaning sub-units. The joint couplers mounted on the drive-receive rotators and the drive transmission rotators couple the drive-receive rotators with the drive transmission rotators in a rotation axial direction.

摘要翻译： 清洁装置包括清洁器，多个清洁子单元，子单元保持器，可拆卸传动组件和多个接头联接器。 清洁剂在与清洁对象的表面接触的同时从清洁目标的表面刮去附着的材料。 清洁子单元各自包括用于保持清洁器的保持器和用于接收驱动力的驱动接收旋转器。 子单元保持器保持清洁子单元。 可拆卸传动组件包括驱动力接收旋转器，用于接受来自外部单元的驱动力和多个驱动传动旋转器，以将由驱动力接收旋转器接收的驱动力传递到清洁子组件的驱动接收旋转器 -单位。 安装在驱动器接收旋转器上的接合联接器和驱动传动旋转器将驱动传递旋转器与驱动传动旋转器沿旋转轴向耦合。

公开(公告)号：US20160216647A1

公开(公告)日：2016-07-28

申请号：US15003239

申请日：2016-01-21

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

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

IPC分类号： G03G15/16 ,  A47L13/40

CPC分类号： G03G15/161 ,  B08B1/002 ,  B08B1/007 ,  B08B1/02 ,  B08B1/04 ,  B08B6/00 ,  G03G21/0035 ,  G03G21/0058 ,  G03G21/0076 ,  G03G2215/0129 ,  G03G2221/001

摘要： A cleaning device includes an upstream cleaner, an upstream cleaner, and a collection member. The upstream cleaner is configured to remove toner from a surface of a cleaning target. The downstream cleaner is disposed downstream from the upstream cleaner in a direction of movement of the surface of the cleaning target. The downstream cleaner is configured to remove toner from the surface of the cleaning target. The collection member is configured to collect toner from the downstream cleaner.

摘要翻译： 清洁装置包括上游清洁器，上游清洁器和收集构件。 上游清洁器被配置为从清洁目标的表面去除调色剂。 下游清洁器在清洁对象表面的移动方向上设置在上游清洁器的下游。 下游清洁器构造成从清洁对象的表面去除调色剂。 收集构件构造成从下游清洁器收集调色剂。

公开(公告)号：US09360807B2

公开(公告)日：2016-06-07

申请号：US14802374

申请日：2015-07-17

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

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

IPC分类号： G03G15/16

CPC分类号： G03G15/1665 ,  G03G15/1605 ,  G03G15/161 ,  G03G2215/0129

摘要： An image forming apparatus includes an image bearer on which a toner image is formed, an intermediate transfer belt onto which the toner image transferred from the image bearer, a secondary transfer member, a guide assembly, and a biasing device. The secondary transfer member meets the intermediate transfer belt to form a secondary transfer nip in which the toner image is transferred from the intermediate transfer belt onto a recording sheet. The guide assembly disposed upstream from the secondary transfer member in a transport direction of the recording sheet guides the recording sheet at a position lower than the secondary transfer nip such that a leading end of the recording sheet contacts the secondary transfer member before entering the secondary transfer nip. The biasing device biases the secondary transfer member to move the secondary transfer member in one of a direction of bias and a vertical direction.

摘要翻译： 图像形成装置包括其上形成调色剂图像的图像载体，从图像承载体转印的调色剂图像的二次转印带，二次转印部件，引导组件和偏置装置。 二次转印部件与中间转印带相遇以形成二次转印辊隙，其中调色剂图像从中间转印带转印到记录纸上。 在记录纸的输送方向上设置在二次转印部件上游的引导组件将记录纸引导到低于二次转印辊隙的位置，使得记录纸的前端在进入二次转印之前接触二次转印部件 掐。 偏置装置偏压二次转印构件以使二次转印构件沿偏压方向和垂直方向之一移动。