专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US09645530B2 Image forming apparatus 有权
公开(公告)号：US09645530B2
公开(公告)日：2017-05-09
申请号：US15142424
申请日：2016-04-29
申请人： Naoto Kochi , Kenji Sugiura , Hirokazu Ishii , Hiroyoshi Haga , Yuuji Wada , Takehide Mizutani , Naohiro Kumagai , Junpei Fujita , Tatsuya Ohsugi , Kazuki Yogosawa
发明人： Naoto Kochi , Kenji Sugiura , Hirokazu Ishii , Hiroyoshi Haga , Yuuji Wada , Takehide Mizutani , Naohiro Kumagai , Junpei Fujita , Tatsuya Ohsugi , Kazuki Yogosawa
IPC分类号： G03G15/16
CPC分类号： G03G15/163 , G03G15/1605 , G03G15/1675 , G03G2215/0129
摘要： An image forming apparatus includes an image bearer, a transfer device contacting the image bearer to form a transfer portion, a transfer bias power source, and a controller. A ratio of a time period of application of the opposite-directional bias to a total time period of one cycle of the AC component of the superimposed bias is greater than 50%. A ratio of a value of the DC component of the superimposed bias output within a region ranging from a leading end of the recording medium to a predetermined length to a value of the DC component of the superimposed bias output outside the region is greater than a ratio of a value of the AC component of the superimposed bias output within the region to a value of the AC component of the superimposed bias output outside the region.

2. 发明申请

US20150346651A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20150346651A1
公开(公告)日：2015-12-03
申请号：US14712307
申请日：2015-05-14
申请人： Haruki NAGATA , Ryo HASEGAWA , Naoto KOCHI , Atsushi NAGATA , Takahiro KONISHI
发明人： Haruki NAGATA , Ryo HASEGAWA , Naoto KOCHI , Atsushi NAGATA , Takahiro KONISHI
IPC分类号： G03G15/16
CPC分类号： G03G15/1665 , G03G15/1605 , G03G2215/00738 , G03G2215/0193
摘要： An image forming apparatus includes an image bearer, a nip forming device, a contact-and-separation device, a thickness information retrieving device, and a controller. The contact-and-separation device moves the image bearer and the nip forming device to contact and separate from each other. The controller controls the contact-and-separation device based on information on a thickness of a recording medium obtained by the thickness information retrieving device such that in a case in which a thickness of a preceding recording medium and a thickness of a successive recording medium are different in continuous printing in which a plurality of recording media is printed out continuously, the contact-and-separation device adjusts a space between the image bearer and the nip forming device when the preceding recording medium exits the transfer nip to a preset size corresponding to the thickness of the successive recording medium that enters the transfer nip.
摘要翻译：图像形成装置包括图像载体，压区形成装置，接触 - 分离装置，厚度信息检索装置和控制器。接触分离装置使图像载体和辊隙形成装置相互接触和分离。控制器基于由厚度信息检索装置获得的记录介质的厚度的信息来控制接触 - 分离装置，使得在先前记录介质的厚度和连续记录介质的厚度为在连续打印多个记录介质的连续打印不同的情况下，当前一记录介质离开传送辊隙时，接触 - 分离装置调整图像载体和辊隙形成装置之间的空间，使其对应于进入转印辊隙的连续记录介质的厚度。

3. 发明授权

US10042293B2 Image forming apparatus having transfer bias power controller 有权
公开(公告)号：US10042293B2
公开(公告)日：2018-08-07
申请号：US15383369
申请日：2016-12-19
申请人： Naoto Kochi , Shinya Tanaka , Takehide Mizutani
发明人： Naoto Kochi , Shinya Tanaka , Takehide Mizutani
IPC分类号： G03G15/16
摘要： An image forming apparatus includes a transfer power supply and a controller. The controller is configured to execute control for an end-portion voltage that is a DC voltage of a transfer bias at a time of transferring a toner image to an end portion of a recording sheet and a body-portion voltage that is a DC voltage of a transfer bias at a time of transferring a toner image to a body portion on a rear side of an end portion of a recording sheet, such that the end-portion voltage is set to be higher than the body-portion voltage in the DC transfer bias and a value obtained by dividing the end-portion voltage by the body-portion voltage in the superimposed transfer bias is set to be smaller than a value obtained by dividing the end-portion voltage by the body-portion voltage in the DC transfer bias.

4. 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.

5. 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.

6. 发明授权

US09395659B2 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US09395659B2
公开(公告)日：2016-07-19
申请号：US14259337
申请日：2014-04-23
申请人： Shinya Tanaka , Hirokazu Ishii , Tsutomu Kato , Yasufumi Takahashi , Takehide Mizutani , Osamu Ichihashi , Yuji Kato , Atsushi Nagata , Kazuosa Kuma , Ryo Hasegawa , Haruki Nagata , Naoto Kochi
发明人： Shinya Tanaka , Hirokazu Ishii , Tsutomu Kato , Yasufumi Takahashi , Takehide Mizutani , Osamu Ichihashi , Yuji Kato , Atsushi Nagata , Kazuosa Kuma , Ryo Hasegawa , Haruki Nagata , Naoto Kochi
IPC分类号： G03G15/16
CPC分类号： G03G15/1675 , G03G15/1605
摘要： An image forming apparatus includes an image carrier that carries a toner image; a transfer member that forms a transfer nip between the transfer member and the image carrier; and a power supply capable of outputting a superimposed transfer bias in which an alternating current component is superimposed onto a direct current component. The toner image on the image carrier is transferred onto a recording medium in the transfer nip by the superimposed transfer bias or a direct current bias consisting of the direct current component output by the power supply. The apparatus also includes a controller that controls the power supply so that an output target value of the direct current component when the direct current component rises up is larger than an output target value of the direct current component when the toner image is transferred onto the recording medium.
摘要翻译：图像形成装置包括承载调色剂图像的图像载体; 转印部件，其在转印部件和图像载体之间形成转印辊隙; 以及能够输出叠加在直流分量上的交流分量的叠加转印偏压的电源。图像载体上的调色剂图像通过叠加的转印偏压或由电源输出的直流分量组成的直流偏压转印到转印辊隙中的记录介质上。该装置还包括控制器，其控制电源，使得当直流分量上升时直流分量的输出目标值大于当调色剂图像被转印到记录上时的直流分量的输出目标值中。

7. 发明申请

US20140328604A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20140328604A1
公开(公告)日：2014-11-06
申请号：US14259337
申请日：2014-04-23
申请人： Shinya TANAKA , Hirokazu Ishii , Tsutomu Kato , Yasufumi Takahashi , Takehide Mizutani , Osamu Ichihashi , Yuji Kato , Atsushi Nagata , Kazuosa Kuma , Ryo Hasegawa , Haruki Nagata , Naoto Kochi
发明人： Shinya TANAKA , Hirokazu Ishii , Tsutomu Kato , Yasufumi Takahashi , Takehide Mizutani , Osamu Ichihashi , Yuji Kato , Atsushi Nagata , Kazuosa Kuma , Ryo Hasegawa , Haruki Nagata , Naoto Kochi
IPC分类号： G03G15/16
CPC分类号： G03G15/1675 , G03G15/1605
摘要： An image forming apparatus includes an image carrier that carries a toner image; a transfer member that forms a transfer nip between the transfer member and the image carrier; and a power supply capable of outputting a superimposed transfer bias in which an alternating current component is superimposed onto a direct current component. The toner image on the image carrier is transferred onto a recording medium in the transfer nip by the superimposed transfer bias or a direct current bias consisting of the direct current component output by the power supply. The apparatus also includes a controller that controls the power supply so that an output target value of the direct current component when the direct current component rises up is larger than an output target value of the direct current component when the toner image is transferred onto the recording medium.
摘要翻译：图像形成装置包括承载调色剂图像的图像载体; 转印部件，其在转印部件和图像载体之间形成转印辊隙; 以及能够输出叠加在直流分量上的交流分量的叠加转印偏压的电源。图像载体上的调色剂图像通过叠加的转印偏压或由电源输出的直流分量组成的直流偏压转印到转印辊隙中的记录介质上。该装置还包括控制器，其控制电源，使得当直流分量上升时直流分量的输出目标值大于当调色剂图像被转印到记录上时的直流分量的输出目标值中。

8. 发明授权

US10831132B2 Transfer device and image forming apparatus incorporating same 有权
公开(公告)号：US10831132B2
公开(公告)日：2020-11-10
申请号：US16248939
申请日：2019-01-16
申请人： Takahiro Suzuki , Yuuji Wada , Naoto Kochi , Shinya Tanaka
发明人： Takahiro Suzuki , Yuuji Wada , Naoto Kochi , Shinya Tanaka
IPC分类号： G03G15/20 , G03G15/16
摘要： A transfer device includes an intermediate transfer belt configured to bear a toner image and rotate, a transferor configured to contact the intermediate transfer belt via a recording medium and form a transfer nip, a guide configured to guide the recording medium conveyed to the transfer nip, and a pressure reducing device. The intermediate transfer belt is shaped as an endless belt. The pressure reducing device is configured to reduce pressure-contact force of the transferor against the intermediate transfer belt as the recording medium advances in the transfer nip. Therefore, a trailing end of the recording medium does not move toward the intermediate transfer belt when the trailing end of the recording medium has passed the guide.

9. 发明申请

US20190243288A1 TRANSFER DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME 审中-公开
公开(公告)号：US20190243288A1
公开(公告)日：2019-08-08
申请号：US16248939
申请日：2019-01-16
申请人： Takahiro SUZUKI , Yuuji WADA , Naoto KOCHI , Shinya TANAKA
发明人： Takahiro SUZUKI , Yuuji WADA , Naoto KOCHI , Shinya TANAKA
IPC分类号： G03G15/16
摘要： A transfer device includes an intermediate transfer belt configured to bear a toner image and rotate, a transferor configured to contact the intermediate transfer belt via a recording medium and form a transfer nip, a guide configured to guide the recording medium conveyed to the transfer nip, and a pressure reducing device. The intermediate transfer belt is shaped as an endless belt. The pressure reducing device is configured to reduce pressure-contact force of the transferor against the intermediate transfer belt as the recording medium advances in the transfer nip. Therefore, a trailing end of the recording medium does not move toward the intermediate transfer belt when the trailing end of the recording medium has passed the guide.

10. 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.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式