公开(公告)号：US09829835B2

公开(公告)日：2017-11-28

申请号：US15420718

申请日：2017-01-31

Applicant: KYOCERA Document Solutions Inc.

Inventor： Keisuke Oba ,  Satoshi Uemura ,  Kenji Miyamoto

IPC: G03G15/16

CPC classification number: G03G15/1615 ,  G03G15/161 ,  G03G2215/0132 ,  G03G2215/0193

Abstract: An image forming apparatus of the present disclosure includes a plurality of image forming portions, an intermediate transfer unit, a secondary transfer member, a belt cleaning device, and a control portion. The intermediate transfer unit includes an intermediate transfer belt, a plurality of primary transfer members, a drive roller, a tension roller, and a contacting/separating mechanism. The belt cleaning device includes a cleaning member which faces the tension roller with the intermediate transfer belt therebetween. In a withdrawal mode, the cleaning member is moved by pressing force of the tension roller further into a housing from an opening portion as compared with in a printing mode. The control portion is capable of executing, while image formation is not being performed, a transfer toner collection mode in which the intermediate transfer belt and the belt cleaning device are driven in the withdrawal mode.

公开(公告)号：US09612563B2

公开(公告)日：2017-04-04

申请号：US15040636

申请日：2016-02-10

Applicant: KYOCERA Document Solutions Inc.

Inventor： Yasuhiro Michishita ,  Satoshi Uemura

IPC: G03G15/00 ,  G03G15/16

CPC classification number: G03G15/657 ,  G03G15/1675

Abstract: An image forming apparatus includes an image carrier, a conveyance belt, a transfer roller, a suspension roller, and a conductive opposed member. The conveyance belt is in contact with the image carrier to form a nip and conveys a sheet via the nip position. A voltage of reversed polarity to a charge polarity of toner forming the toner image is applied to the transfer roller to transfer the toner image to the sheet at the nip position. A suspension roller suspends the conveyance belt at a separation position. The separation position is downstream with respect to the nip position in a sheet conveyance direction. The separation position is positioned where the sheet separates from the conveyance belt. The voltage of reversed polarity to the charge polarity of the toner is applied to the suspension roller. The conductive opposed member is arranged opposed to the suspension roller across the conveyance belt.

公开(公告)号：US20150346642A1

公开(公告)日：2015-12-03

申请号：US14655323

申请日：2014-10-01

Applicant: KYOCERA DOCUMENT SOLUTIONS INC.

Inventor： Koji Uno ,  Masafumi Hashimura ,  Yasuhiro Michishita ,  Tetsuya Toichi ,  Satoshi Uemura

IPC: G03G15/16

CPC classification number: G03G15/161 ,  G03G15/16 ,  G03G21/10 ,  G03G2215/0132

Abstract: An image forming apparatus (1) includes an image forming section (12), an intermediate transfer belt (125), a drive roller (125A), a secondary transfer roller (210), a brush section (80), a cleaning device (70), a power supply device (81), and a ground portion (82). The brush section (80) is disposed at a location downstream of the secondary transfer roller (210) in a direction of travel of the intermediate transfer belt (125) and facing the drive roller (125A) with the intermediate transfer belt (125) in between. A potential difference is applied between the brush section (80) and the secondary transfer roller (210) by the power supply device (81) and the ground portion (82), so that an electric current having the same polarity as a normal charge polarity flows from the brush section (80) through the drive roller (125A) to the secondary transfer roller (210).

Abstract translation: 图像形成装置（1）包括图像形成部（12），中间转印带（125），驱动辊（125A），二次转印辊（210），刷部（80），清洁装置 70），电源装置（81）和接地部（82）。 电刷部分（80）在中间转印带（125）的行进方向上并且与中间转印带（125）相对的驱动辊（125A）位于二次转印辊（210）下游的位置处 之间。 通过电源装置（81）和接地部（82）在电刷部（80）和二次转印辊（210）之间施加电位差，使得具有与正常充电极性相同极性的电流 从刷部（80）通过驱动辊（125A）流到二次转印辊（210）。

公开(公告)号：US09366997B2

公开(公告)日：2016-06-14

申请号：US14655323

申请日：2014-10-01

Applicant: KYOCERA Document Solutions Inc.

Inventor： Koji Uno ,  Masafumi Hashimura ,  Yasuhiro Michishita ,  Tetsuya Toichi ,  Satoshi Uemura

IPC: G03G15/16 ,  G03G21/10

CPC classification number: G03G15/161 ,  G03G15/16 ,  G03G21/10 ,  G03G2215/0132

Abstract: An image forming apparatus (1) includes an image forming section (12), an intermediate transfer belt (125), a drive roller (125A), a secondary transfer roller (210), a brush section (80), a cleaning device (70), a power supply device (81), and a ground portion (82). The brush section (80) is disposed at a location downstream of the secondary transfer roller (210) in a direction of travel of the intermediate transfer belt (125) and facing the drive roller (125A) with the intermediate transfer belt (125) in between. A potential difference is applied between the brush section (80) and the secondary transfer roller (210) by the power supply device (81) and the ground portion (82), so that an electric current having the same polarity as a normal charge polarity flows from the brush section (80) through the drive roller (125A) to the secondary transfer roller (210).

Abstract translation: 图像形成装置（1）包括图像形成部（12），中间转印带（125），驱动辊（125A），二次转印辊（210），刷部（80），清洁装置 70），电源装置（81）和接地部（82）。 电刷部分（80）在中间转印带（125）的行进方向上并且与中间转印带（125）相对的驱动辊（125A）位于二次转印辊（210）下游的位置处 之间。 通过电源装置（81）和接地部（82）在电刷部（80）和二次转印辊（210）之间施加电位差，使得具有与正常充电极性相同极性的电流 从刷部（80）通过驱动辊（125A）流到二次转印辊（210）。

公开(公告)号：US09568861B2

公开(公告)日：2017-02-14

申请号：US14685910

申请日：2015-04-14

Applicant: KYOCERA Document Solutions Inc.

Inventor： Yuta Kitabayashi ,  Koji Uno ,  Satoshi Uemura

IPC: G03G15/16

CPC classification number: G03G15/161 ,  G03G2215/1661

Abstract: An image forming apparatus includes an image carrier, a cleaning member, a rotation controlling part, a first obtaining part and a mode changing part. The image carrier has a surface to carry a toner image transferred onto a sheet. The cleaning member contacts the surface of the image carrier at a downstream side in a rotating direction of the image carrier from a transferring position transferring the toner image to collect a toner from the image carrier and to hold the toner. The rotation controlling part has a first speed control mode rotating the cleaning member at a first rotational speed and a second speed control mode rotating the cleaning member at a second rotational speed faster than the first rotational speed and switches from the first speed control mode to the second speed control mode at predetermined switch timing.

Abstract translation: 图像形成装置包括图像载体，清洁构件，旋转控制部，第一获得部和模式改变部。 图像载体具有用于承载转印到片材上的调色剂图像的表面。 清洁构件在图像载体的旋转方向的下游侧从转印调色剂图像的转印位置接触图像载体的表面，以从图像载体收集调色剂并保持调色剂。 旋转控制部具有第一速度控制模式，以第一旋转速度旋转清洁部件，第二速度控制模式以比第一旋转速度快的第二旋转速度旋转清洁部件，并且从第一速度控制模式切换到 第二速度控制模式。

公开(公告)号：US09557689B2

公开(公告)日：2017-01-31

申请号：US15002301

申请日：2016-01-20

Applicant: KYOCERA Document Solutions Inc.

Inventor： Satoshi Uemura

IPC: G03G15/01 ,  G03G15/16

CPC classification number: G03G15/1615 ,  G03G2215/0132 ,  G03G2215/0193

Abstract: An image forming apparatus includes an intermediate transfer belt, a plurality of belt rollers, a plurality of transfer rollers, a cleaning member, a first driving portion, a second driving portion, and a running control portion. The first driving portion is capable of causing the respective transfer rollers to come into contact with or separate from the intermediate transfer belt. The second driving portion is capable of changing orientation of predetermined one or a plurality of movable rollers among the plurality of belt rollers. The running control portion executes a running process including: causing the first driving portion to separate the respective transfer rollers from the intermediate transfer belt; causing the second driving portion to change the orientation of the movable roller to orientation different from that during execution of an image forming process; and causing the intermediate transfer belt to run.

Abstract translation: 图像形成装置包括中间转印带，多个带辊，多个转印辊，清洁部件，第一驱动部，第二驱动部和行进控制部。 第一驱动部分能够使各转印辊与中间转印带接触或分离。 第二驱动部能够改变多个带辊中的预定的一个或多个可动辊的取向。 运行控制部执行运行处理，包括：使第一驱动部从中间转印带分离各转印辊; 使得第二驱动部分将可动辊的取向改变为与执行图像形成处理期间不同的方向; 并使中间转印带运行。

公开(公告)号：US09513581B2

公开(公告)日：2016-12-06

申请号：US14915155

申请日：2015-06-12

Applicant: KYOCERA Document Solutions Inc.

Inventor： Yasuhiro Michishita ,  Satoshi Uemura

IPC: G03G15/16 ,  G03G15/14

CPC classification number: G03G15/1665 ,  G03G15/14 ,  G03G15/1675 ,  G03G15/168 ,  G03G2215/1623

Abstract: A transfer device (35) includes a conveyance belt (351), a transfer roller (352), and a stretch roller (354). The conveyance belt (351) is in contact with an image carrier (31) that carries a toner image, and conveys a sheet via a contact position with the image carrier (31). A voltage having a polarity opposite to a charging polarity of toner that forms the toner image is applied to the transfer roller (352), and the transfer roller (352) transfers the toner image carried by the image carrier (31) onto the sheet at the contact position. The stretch roller (354) is in an insulated state, and stretches the conveyance belt (351) at a separation position in which the sheet is separated from the conveyance belt (351) and which is downstream of the contact position in a conveyance direction in which the sheet is conveyed by the conveyance belt (351).

Abstract translation: 传送装置（35）包括输送带（351），转印辊（352）和拉伸辊（354）。 输送带351与承载调色剂图像的图像载体（31）接触，并通过与图像载体（31）的接触位置传送片材。 将具有与形成调色剂图像的调色剂的充电极性相反的极性的电压施加到转印辊（352）上，并且转印辊（352）将由图像载体（31）承载的调色剂图像转印到片材上 接触位置。 拉伸辊354处于绝缘状态，并且在输送带351的输送方向的接触位置下游的分离位置处使输送带351延伸， 片材由输送带（351）输送。

公开(公告)号：US20160209785A1

公开(公告)日：2016-07-21

申请号：US14915155

申请日：2015-06-12

Applicant: KYOCERA DOCUMENT SOLUTIONS INC.

Inventor： Yasuhiro Michishita ,  Satoshi Uemura

IPC: G03G15/16

CPC classification number: G03G15/1665 ,  G03G15/14 ,  G03G15/1675 ,  G03G15/168 ,  G03G2215/1623

Abstract: A transfer device (35) includes a conveyance belt (351), a transfer roller (352), and a stretch roller (354). The conveyance belt (351) is in contact with an image carrier (31) that carries a toner image, and conveys a sheet via a contact position with the image carrier (31). A voltage having a polarity opposite to a charging polarity of toner that forms the toner image is applied to the transfer roller (352), and the transfer roller (352) transfers the toner image carried by the image carrier (31) onto the sheet at the contact position. The stretch roller (354) is in an insulated state, and stretches the conveyance belt (351) at a separation position in which the sheet is separated from the conveyance belt (351) and which is downstream of the contact position in a conveyance direction in which the sheet is conveyed by the conveyance belt (351).

Abstract translation: 传送装置（35）包括输送带（351），转印辊（352）和拉伸辊（354）。 输送带351与承载调色剂图像的图像载体（31）接触，并通过与图像载体（31）的接触位置传送片材。 将具有与形成调色剂图像的调色剂的充电极性相反的极性的电压施加到转印辊（352）上，并且转印辊（352）将由图像载体（31）承载的调色剂图像转印到片材上 接触位置。 拉伸辊354处于绝缘状态，并且在输送带351的输送方向的接触位置下游的分离位置处使输送带351延伸， 片材由输送带（351）输送。

公开(公告)号：US09063477B2

公开(公告)日：2015-06-23

申请号：US14522495

申请日：2014-10-23

Applicant: KYOCERA Document Solutions Inc.

Inventor： Yasuhiro Michishita ,  Satoshi Uemura ,  Koji Uno ,  Tetsuya Toichi ,  Masafumi Hashimura

IPC: G03G15/00 ,  G03G15/16

CPC classification number: G03G21/06 ,  G03G15/657

Abstract: An image forming apparatus includes: a photosensitive drum; a transfer belt configured to be charged to an opposite polarity to the surface of the photosensitive drum to electrostatically attract a recording paper sheet and convey the sheet while pressing the sheet against the photosensitive drum, thereby transferring a toner image formed on the surface of the photosensitive drum to the sheet; a fixing section configured to apply heat to the recording paper sheet having the toner image transferred thereto and thus fix the toner image on the sheet; a toner collecting member disposed to face a separating position where the recording paper sheet is separated from the transfer belt and extending in a width direction of the sheet being conveyed, the toner collecting member being electrically grounded; and a thermally conductive member configured to collect heat near the fixing section and conduct the collected heat to the toner collecting member.

Abstract translation: 图像形成装置包括：感光鼓; 转印带，被配置为以与感光鼓的表面相反的极性进行充电，以静电吸引记录纸，并在将片材压靠在感光鼓上的同时传送片材，从而转印形成在感光鼓表面上的调色剂图像 鼓到桌子; 固定部，被配置为向转印有调色剂图像的记录纸张施加热量，从而将调色剂图像固定在片材上; 调色剂收集部件设置成面对记录纸张与转印带分离并且在被输送的纸张的宽度方向上延伸的分离位置，调色剂收集部件电接地; 以及导热构件，其构造成在所述固定部分附近收集热量，并将所收集的热量传送到所述调色剂收集构件。

公开(公告)号：US09488936B2

公开(公告)日：2016-11-08

申请号：US15049536

申请日：2016-02-22

Applicant: KYOCERA Document Solutions Inc.

Inventor： Yasuhiro Michishita ,  Satoshi Uemura

IPC: G03G15/16 ,  G03G15/00 ,  G03G21/20

CPC classification number: G03G15/1665 ,  G03G15/1675 ,  G03G15/657 ,  G03G15/80 ,  G03G21/203

Abstract: In printing, a first power supply unit applies a transfer current with a polarity opposite to a charged polarity of toner to the transfer roller. A second power supply unit applies a toner scattering suppression current with a polarity opposite to the charged polarity of the toner to a stretching roller until a rear end of a sheet passes through a separation position after a front end of the sheet reaches the separation position. The first power supply unit applies a post-transfer current, which has a polarity opposite to the charged polarity of the toner and has an absolute value equal to or more than an absolute value of the toner scattering suppression current, to the transfer roller until the rear end of the sheet passes through the separation position after the rear end of the sheet passes through the nip position.

Abstract translation: 在打印时，第一电源单元将具有与带电极性相反的极性的转移电流施加到转印辊。 第二电源单元将具有与调色剂的带电极性相反的极性的调色剂散射抑制电流施加到拉伸辊，直到片材的后端在片材的前端到达分离位置之后通过分离位置。 第一电源单元施加后转移电流，该转移电流具有与调色剂的带电极性相反的极性，并且具有等于或大于调色剂散射抑制电流的绝对值的绝对值到转印辊直到 在片材的后端通过夹持位置之后，片材的后端通过分离位置。