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1. 发明授权

US08270875B2 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US08270875B2
公开(公告)日：2012-09-18
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： G03G21/00
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。

2. 发明申请

US20180157209A1 TRANSFER DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME 审中-公开
公开(公告)号：US20180157209A1
公开(公告)日：2018-06-07
申请号：US15831566
申请日：2017-12-05
申请人： Junpei Fujita , Katsuhito Haruno , Atsushi Nakamoto , Masakazu Imai , Osamu Ichihashi , Takehide Mizutani , Naoto Kochi
发明人： Junpei Fujita , Katsuhito Haruno , Atsushi Nakamoto , Masakazu Imai , Osamu Ichihashi , Takehide Mizutani , Naoto Kochi
IPC分类号： G03G15/16
CPC分类号： G03G21/0094 , G03G15/161 , G03G15/1675 , G03G15/5008 , G03G21/0011 , G03G2215/00059
摘要： A transfer device includes an image bearer, a rotatable body, a solid lubricant assembly, and a guide. An image bearer bears an image. The rotatable body forms a transfer nip with the image bearer to rotate in contact with a recording medium. An image on the image bearer is transferred onto the recording medium at the transfer nip. The solid lubricant assembly includes a solid lubricant and extends in a longitudinal direction of the rotatable body. The solid lubricant assembly applies a solid lubricant to at least one of the rotatable body and the image bearer. The guide guides the recording medium and positions the solid lubricant assembly.

3. 发明授权

US10114331B2 Transfer device and image forming apparatus incorporating same 有权
公开(公告)号：US10114331B2
公开(公告)日：2018-10-30
申请号：US15831566
申请日：2017-12-05
申请人： Junpei Fujita , Katsuhito Haruno , Atsushi Nakamoto , Masakazu Imai , Osamu Ichihashi , Takehide Mizutani , Naoto Kochi
发明人： Junpei Fujita , Katsuhito Haruno , Atsushi Nakamoto , Masakazu Imai , Osamu Ichihashi , Takehide Mizutani , Naoto Kochi
IPC分类号： G03G15/20 , G03G21/00 , G03G15/16 , G03G15/00
摘要： A transfer device includes an image bearer, a rotatable body, a solid lubricant assembly, and a guide. An image bearer bears an image. The rotatable body forms a transfer nip with the image bearer to rotate in contact with a recording medium. An image on the image bearer is transferred onto the recording medium at the transfer nip. The solid lubricant assembly includes a solid lubricant and extends in a longitudinal direction of the rotatable body. The solid lubricant assembly applies a solid lubricant to at least one of the rotatable body and the image bearer. The guide guides the recording medium and positions the solid lubricant assembly.

4. 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.

5. 发明授权

US09459564B2 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US09459564B2
公开(公告)日：2016-10-04
申请号：US14881611
申请日：2015-10-13
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%.
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％。

6. 发明授权

US09720355B2 Image forming apparatus 有权
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%.

7. 发明授权

US10527974B2 Belt device and image forming apparatus incorporating same 有权
公开(公告)号：US10527974B2
公开(公告)日：2020-01-07
申请号：US16057135
申请日：2018-08-07
申请人： Seiichi Kogure , Junpei Fujita
发明人： Seiichi Kogure , Junpei Fujita
IPC分类号： G03G15/16 , G03G15/01 , G03G21/16
摘要： A belt device includes an endless belt, a support shaft, a contact member, a frame, and a regulating member. The contact member is configured to contact the belt. The support shaft is configured to support the contact member and rotate together with the contact member. The frame is configured to support the support shaft. The regulating member is configured to regulate movement of the contact member. The regulating member is configured to move relative to the frame, in a direction that crosses an axial direction of the support shaft, from a regulating position to regulate movement of the support shaft in an axial direction of the support shaft.

8. 发明授权

US10152001B2 Image forming apparatus 有权
公开(公告)号：US10152001B2
公开(公告)日：2018-12-11
申请号：US15690484
申请日：2017-08-30
申请人： Naohiro Kumagai , Seiichi Kogure , Junpei Fujita , Kazuki Yogosawa , Kenji Sugiura , Yuuji Wada
发明人： Naohiro Kumagai , Seiichi Kogure , Junpei Fujita , Kazuki Yogosawa , Kenji Sugiura , Yuuji Wada
IPC分类号： G03G15/16
摘要： An image forming apparatus includes an image bearer, an intermediate transferor, a secondary transferor, a plurality of rotators including a secondary driving rotator, and a detector. The image bearer bears a detection image. The detection image is transferred from the image bearer to the intermediate transferor at a primary transfer position. The secondary transferor is looped around the plurality of rotators and disposed in contact with the intermediate transferor at a secondary transfer position where the detection image is transferred from the intermediate transferor to the secondary transferor. The secondary driving rotator drives the secondary transferor. The detector detects the detection image on the secondary transferor at a detection position. With this configuration, a distance from the secondary transfer position to the detection position on the secondary transferor is an integral multiple of a circumference of the secondary driving rotator.

9. 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.

10. 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.

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