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11. 发明授权

US09817341B2 Image forming apparatus 有权
公开(公告)号：US09817341B2
公开(公告)日：2017-11-14
申请号：US15073983
申请日：2016-03-18
申请人： Tatsuya Ohsugi , Kenji Sugiura , Hirokazu Ishii , Hiroyoshi Haga , Naohiro Kumagai , Seiichi Kogure , Takehide Mizutani , Junpei Fujita , Yuuji Wada , Kazuki Yogosawa , Naoto Kochi
发明人： Tatsuya Ohsugi , Kenji Sugiura , Hirokazu Ishii , Hiroyoshi Haga , Naohiro Kumagai , Seiichi Kogure , Takehide Mizutani , Junpei Fujita , Yuuji Wada , Kazuki Yogosawa , Naoto Kochi
IPC分类号： G03G15/20 , 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.

12. 发明申请

US20170235258A1 IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD 审中-公开
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.

13. 发明授权

US09690246B2 Image forming apparatus including contact members disposed side by side at positions opposing a guide unit 有权
公开(公告)号：US09690246B2
公开(公告)日：2017-06-27
申请号：US14969216
申请日：2015-12-15
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
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 unit, and a plurality of contact members. The belt-shaped 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 unit 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 plurality of contact members are disposed side by side at positions opposing the guide unit and in contact with a non image bearing surface of the image bearer opposite to the image bearing surface.

14. 发明授权

US09632461B2 Image forming apparatus controlling transfer bias based on temperature and humidity 有权
公开(公告)号：US09632461B2
公开(公告)日：2017-04-25
申请号：US14956707
申请日：2015-12-02
申请人： Kenji Sugiura , Toshitaka Yamaguchi , Hiroyoshi Haga , Hirokazu Ishii , Shinya Tanaka , Takehide Mizutani , Yuuji Wada , Tatsuya Ohsugi , Naohiro Kumagai , Seiichi Kogure , Junpei Fujita , Kazuki Yogosawa
发明人： Kenji Sugiura , Toshitaka Yamaguchi , Hiroyoshi Haga , Hirokazu Ishii , Shinya Tanaka , Takehide Mizutani , Yuuji Wada , Tatsuya Ohsugi , Naohiro Kumagai , Seiichi Kogure , Junpei Fujita , Kazuki Yogosawa
IPC分类号： G03G15/16 , G03G21/20
CPC分类号： G03G15/1665 , G03G15/1675 , G03G21/20
摘要： An image forming apparatus includes an image bearer, a toner image forming device, a nip forming device, a power source, a controller, and a temperature-and-humidity detector. The toner image forming device forms a toner image on the image bearer. The nip forming device contacts the image bearer to form a transfer nip. The power source outputs a transfer bias, in which an alternating current component is superimposed on a direct current component, to transfer the toner image onto a recording medium interposed in the transfer nip. The temperature-and-humidity detector detects a temperature and humidity. The controller controls the power source to output the transfer bias including the direct current component with a smaller absolute value as at least one of the detected temperature and humidity increases.

15. 发明申请

US20160216682A1 CLEANING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME 有权
标题翻译：清洁装置和成像装置的图像形成装置
公开(公告)号：US20160216682A1
公开(公告)日：2016-07-28
申请号：US15003938
申请日：2016-01-22
申请人： Kenji SENGOKU , Kazuki YOGOSAWA , Mitsuru TAKAHASHI , Seiichi KOGURE , Kenji SUGIURA , Hiroyoshi HAGA , Junpei FUJITA , Takehide MIZUTANI , Tatsuya OHSUGI , Yuuji WADA
发明人： Kenji SENGOKU , Kazuki YOGOSAWA , Mitsuru TAKAHASHI , Seiichi KOGURE , Kenji SUGIURA , Hiroyoshi HAGA , Junpei FUJITA , Takehide MIZUTANI , Tatsuya OHSUGI , Yuuji WADA
IPC分类号： G03G15/16 , G03G21/00
CPC分类号： G03G21/00 , G03G15/161 , G03G21/0035 , G03G21/0058 , G03G21/0076 , G03G2215/0129 , G03G2221/001
摘要： A cleaning device includes a cleaner, a casing, and an exit seal. The cleaner is configured to remove toner from a cleaning target. The casing accommodates the cleaner. The exit seal is attached to the casing and has a free end contacting the cleaning target at a position downward from the cleaner in a direction of movement of the cleaning target and an attached end attached to the casing. A space is disposed between a surface of the cleaning target and an opposite face of the exit seal opposite the cleaning target. The space includes an opening at a lateral end of the exit seal. The exit seal contacts the cleaning target from a trailing direction of the exit seal and seals the opening at at least an attached end side of the exit seal.
摘要翻译：清洁装置包括清洁器，壳体和出口密封件。清洁器配置为从清洁目标中去除碳粉。外壳容纳清洁剂。出口密封件附接到壳体，并且在清洁对象的移动方向和附接到壳体的附接端部上，在从清洁器向下方的位置处接触清洁对象的自由端。在清洁对象的表面和与清洁对象物相对的出口密封件的相对面之间设置有空间。该空间包括在出口密封件的侧端处的开口。出口密封件从出口密封件的拖尾方向接触清洁目标，并且在出口密封件的至少一个附接端侧密封开口。

16. 发明授权

US09383691B2 Image forming apparatus including a transfer bias controller 有权
标题翻译：图像形成装置包括转印偏压控制器
公开(公告)号：US09383691B2
公开(公告)日：2016-07-05
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。

17. 发明申请

US20160170363A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20160170363A1
公开(公告)日：2016-06-16
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： G03G15/16
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.
摘要翻译：图像形成装置包括具有承载图像的图像承载面的图像载体; 与所述图像载体相对设置的传送器，用于将所述图像从所述图像承载面转移到所述传送器和所述图像载体之间的传送部分处的记录介质上; 第一引导件，沿着所述记录介质的传送方向设置在所述传送部分的上游，以将所述记录介质引导到所述传送部分; 以及从第一引导件上游并与第一引导件间隔开的第二引导件，以将记录介质引导到传送部分。第一引导件和第二引导件中的每一个沿垂直于输送方向的横向方向延伸。第二引导件在输送方向上的前端沿横向从第二引导件的一端向另一端倾斜。

18. 发明申请

US20160124374A1 CLEANING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME 审中-公开
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.

19. 发明授权

US09256167B2 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US09256167B2
公开(公告)日：2016-02-09
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。

20. 发明申请

US20150378284A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
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。

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