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：US20160109832A1

公开(公告)日：2016-04-21

申请号：US14881611

申请日：2015-10-13

申请人： Tatsuya OHSUGI ,  Kenji SUGIURA ,  Jyunya SAKURABA ,  Hirokazu ISHll ,  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 ISHll ,  Toshitaka YAMAGUCHI ,  Hiroyoshi HAGA ,  Naohiro KUMAGAI ,  Seiichi KOGURE ,  Junpei FUJITA ,  Yuuji WADA ,  Kazuki YOGOSAWA ,  Shinya TANAKA ,  Masayoshi NAKAYAMA

IPC分类号： 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%.

摘要翻译： 图像形成装置包括图像载体，转印构件和电源。 图像载体包括多个层。 转印部件在图像承载体和转印部件之间形成转印辊隙。 电源输出转印偏压以将调色剂图像从图像载体转印到转印辊隙中的记录纸上。 转印偏压在导致调色剂图像从图像载体移动到记录片材的转印侧偏置之间交替，并且与转印侧偏压不同的相反侧偏置交替。 相对于波形的一个周期，输出相对侧偏压的时间段的占空比大于50％。

公开(公告)号：US20170003630A1

公开(公告)日：2017-01-05

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： G03G15/16

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%.

摘要翻译： 图像形成装置包括图像载体，转印构件和电源。 图像载体包括多个层。 转印部件在图像承载体和转印部件之间形成转印辊隙。 电源输出转印偏压以将调色剂图像从图像载体转印到转印辊隙中的记录纸上。 转印偏压在导致调色剂图像从图像载体移动到记录片材的转印侧偏置之间交替，并且与转印侧偏压不同的相反侧偏置交替。 相对于波形的一个周期，输出相对侧偏压的时间段的占空比大于50％。

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：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：US20160124374A1

公开(公告)日：2016-05-05

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

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.

公开(公告)号：US20150378284A1

公开(公告)日：2015-12-31

申请号：US14742730

申请日：2015-06-18

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： G03G15/16

CPC分类号： G03G15/1695 ,  G03G15/161 ,  G03G15/1675 ,  G03G15/168

摘要： 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.

摘要翻译： 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：US20170235257A1

公开(公告)日：2017-08-17

申请号：US15432392

申请日：2017-02-14

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

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

IPC分类号： G03G15/16

CPC分类号： G03G15/1675 ,  G03G5/005 ,  G03G5/147

摘要： An image forming apparatus includes an image bearer to bear a toner image, a nip forming member contacting the image bearer to form a transfer nip, and a transfer power source. The transfer bias has a transfer peak value to electrostatically move toner from the image bearer to the recording sheet and an opposite-peak value to electrostatically move less toner from the image bearer to the recording sheet than the transfer peak value. An opposite-peak duty of the transfer bias is less than 50%. The opposite-peak duty is tr/T×100% where T is one cycle of the transfer bias and tr is a time period during which the transfer bias is on a side of the opposite-peak value relative to an offset voltage of the transfer bias in the one cycle T.

公开(公告)号：US20150268591A1

公开(公告)日：2015-09-24

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： G03G15/16

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.

摘要翻译： 带单元可拆卸地附接到图像形成装置的主体。 带单元包括带，按压构件和框架。 皮带卷绕在多个支​​撑件上以在带行进方向上行进。 带包括基层和弹性层。 按压构件在带的边缘上按压翘曲。 框架支撑多个支撑。 按压构件定位在框架上。

公开(公告)号：US20150205248A1

公开(公告)日：2015-07-23

申请号：US14602462

申请日：2015-01-22

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： G03G15/16 ,  B21B45/02

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，用于接收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。