公开(公告)号：US20150037054A1

公开(公告)日：2015-02-05

申请号：US14449270

申请日：2014-08-01

申请人： Atsushi NAGATA ,  Kenji SUGIURA ,  Naohiro KUMAGAI ,  Seiichi KOGURE ,  Junpei FUJITA ,  Yuuji WADA ,  Yusuke MITANI ,  Kazuki YOGOSAWA

发明人： Atsushi NAGATA ,  Kenji SUGIURA ,  Naohiro KUMAGAI ,  Seiichi KOGURE ,  Junpei FUJITA ,  Yuuji WADA ,  Yusuke MITANI ,  Kazuki YOGOSAWA

IPC分类号： G03G15/16

CPC分类号： G03G15/1665 ,  G03G15/5058

摘要： An image forming apparatus includes an image bearer; a toner image forming unit, a transfer unit, a detector, and a controller. The toner image forming unit forms a plurality of types of density detection patterns on the surface of the image bearer in mutually-different positions in a surface-movement direction of the image bearer. The density detection patterns have mutually-different lengths in a direction orthogonal to the surface-movement direction of the image bearer. The transfer unit transfers the density detection patterns onto the surface of the transfer member. The detector detects image densities of the density detection patterns transferred on the surface of the transfer member. The controller calculates an image density difference between the density detection patterns on a basis of a detection result obtained by the detector, and corrects a transfer bias for transferring a toner image on a basis of a value of the image density difference.

摘要翻译： 图像形成装置包括图像载体; 调色剂图像形成单元，转印单元，检测器和控制器。 调色剂图像形成单元在图像承载体的表面移动方向上的相互不同的位置的图像载体的表面上形成多种类型的浓度检测图案。 密度检测图案在与图像载体的表面移动方向正交的方向上具有相互不同的长度。 转印单元将浓度检测图案转印到转印部件的表面上。 检测器检测在转印部件的表面上转印的浓度检测图案的图像浓度。 控制器基于由检测器获得的检测结果来计算浓度检测图案之间的图像浓度差，并且基于图像浓度差的值来校正用于转印调色剂图像的转印偏压。

公开(公告)号：US20100067952A1

公开(公告)日：2010-03-18

申请号：US12560796

申请日：2009-09-16

申请人： Junpei FUJITA ,  Toshitaka Yamaguchi ,  Ryoh Tanoue ,  Masaharu Furuya ,  Takuya Sekine ,  Katsuhito Haruno

发明人： Junpei FUJITA ,  Toshitaka Yamaguchi ,  Ryoh Tanoue ,  Masaharu Furuya ,  Takuya Sekine ,  Katsuhito Haruno

IPC分类号： G03G15/02 ,  G03G15/16

CPC分类号： G03G15/1605 ,  G03G15/6564 ,  G03G15/657 ,  G03G2215/00565 ,  G03G2215/1666

摘要： An image forming apparatus includes a toner image carrying member, an image transfer device, a fixing device, a registration unit, a guide member, an upstream-side transportation unit, and a downstream-side transportation unit. The image transfer device transfers a toner image from the toner image carrying member to a recording medium. The fixing device fixes the toner image. The registration unit transports the recording medium. The guide member guides the recording medium. The upstream-side transportation unit includes an upstream-side transportation member, disposed at an upstream side in the transport direction of the recording medium. The downstream-side transportation unit includes the downstream-side transportation member, disposed at a downstream side in the transport direction of the recording medium. The upstream-side transportation unit includes an upstream-side positioning member to position the guide member to the upstream-side transportation member. The downstream-side transportation unit includes a downstream-side positioning member to position the guide member to the downstream-side transportation member.

摘要翻译： 图像形成装置包括调色剂图像承载构件，图像转印装置，定影装置，配准单元，引导构件，上游侧输送单元和下游侧输送单元。 图像转印装置将调色剂图像从调色剂图像承载构件转印到记录介质。 定影装置固定调色剂图像。 记录单元传送记录介质。 引导构件引导记录介质。 上游侧输送单元包括设置在记录介质输送方向的上游侧的上游侧输送部件。 下游侧输送单元包括设置在记录介质输送方向的下游侧的下游侧输送部件。 上游侧输送单元包括将引导构件定位到上游侧输送构件的上游侧定位构件。 下游侧输送单元包括将引导构件定位到下游侧输送构件的下游侧定位构件。

公开(公告)号：US20180046115A1

公开(公告)日：2018-02-15

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

CPC分类号： G03G15/1615 ,  G03G15/1685

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：US20170242371A1

公开(公告)日：2017-08-24

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

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, 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 hearer, 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：US20170090374A1

公开(公告)日：2017-03-30

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

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：US20160274505A1

公开(公告)日：2016-09-22

申请号：US15073983

申请日：2016-03-18

申请人： Tatsuya OHSUGI ,  Kenji SUGIURA ,  Hirokazu ISHll ,  Hiroyoshi HAGA ,  Naohiro KUMAGAI ,  Seiichi KOGURE ,  Takehide MIZUTANI ,  Junpei FUJITA ,  Yuuji WADA ,  Kazuki YOGOSAWA ,  Naoto KOCHI

发明人： Tatsuya OHSUGI ,  Kenji SUGIURA ,  Hirokazu ISHll ,  Hiroyoshi HAGA ,  Naohiro KUMAGAI ,  Seiichi KOGURE ,  Takehide MIZUTANI ,  Junpei FUJITA ,  Yuuji WADA ,  Kazuki YOGOSAWA ,  Naoto KOCHI

IPC分类号： 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.

摘要翻译： 图像形成装置包括多个图像载体，转印偏压构件和电源。 当转印偏压构件将彩色调色剂图像转印到记录纸上时，转印偏压的峰 - 峰的第二峰值小于静电力中的峰 - 峰的第一峰值 将图像载体或中间转印体的调色剂移动到记录片材，为零或具有第一极性，以在传送方向上产生静电力，以将调色剂从图像承载件或中间转印体移动到记录片材。 当转印偏压构件将仅包括黑色调色剂的单色调色剂图像转印到记录片材上时，第二峰值为零或具有第二极性，以在与传送方向相反的方向产生静电力。

公开(公告)号：US20160041508A1

公开(公告)日：2016-02-11

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。

公开(公告)号：US20150055981A1

公开(公告)日：2015-02-26

申请号：US14462815

申请日：2014-08-19

申请人： Junpei FUJITA ,  Kenji Sugiura ,  Seiichi Kogure ,  Junichi Ichikawa ,  Kazuki Yogosawa

发明人： Junpei FUJITA ,  Kenji Sugiura ,  Seiichi Kogure ,  Junichi Ichikawa ,  Kazuki Yogosawa

IPC分类号： G03G15/16

CPC分类号： G03G21/168 ,  G03G15/1615

摘要： An image forming apparatus is provided, including a plurality of rollers; an endless belt mountable to the plurality of rollers from a proximal side of the image forming apparatus in an axial direction of the plurality of rollers; a first side plate to support one end of the plurality of rollers at the proximal side of the image forming apparatus in the axial direction; and a plurality of guide members, disposed at a more proximal side than the first side plate in the axial direction, to guide the belt to be mounted to the plurality of rollers with the guide members contacting the belt.

摘要翻译： 提供了一种图像形成装置，包括多个辊子; 从所述成像装置的基端侧沿所述多个辊的轴向安装到所述多个辊的环形带; 第一侧板，用于在所述图像形成装置的基端侧沿轴向支撑所述多个辊的一端; 以及多个引导构件，其沿轴向设置在比所述第一侧板更靠近的侧面，以使所述引导构件与所述带接触的导向件引导到所述多个辊。

公开(公告)号：US20090279927A1

公开(公告)日：2009-11-12

申请号：US12427377

申请日：2009-04-21

申请人： Junpei FUJITA

发明人： Junpei FUJITA

IPC分类号： G03G15/16

CPC分类号： G03G15/657 ,  G03G2215/00413

摘要： A transferer, including a guide member having a plate-shaped guide face and leading a transfer material after a toner is transferred thereonto, wherein the guide member has an edge pointing to the feeding direction of the transfer material and having plural comb-like structures perpendicular to the feeding direction thereof.

摘要翻译： 一种转印器，包括具有板状引导面的引导构件，并且在将调色剂转印到其上之后引导转印材料，其中引导构件具有指向转印材料的进给方向的边缘并具有垂直于多个梳状结构 到其进给方向。