公开(公告)号：US07502583B2

公开(公告)日：2009-03-10

申请号：US11207730

申请日：2005-08-22

Applicant: Yuuji Sawai ,  Ryuuichi Minbu ,  Kazuchika Saeki ,  Atsushi Tano

Inventor： Yuuji Sawai ,  Ryuuichi Minbu ,  Kazuchika Saeki ,  Atsushi Tano

IPC: G03G15/16

CPC classification number: G03G15/1625 ,  G03G15/0131

Abstract: A transfer device includes an endless belt, an external roller, and an internal roller. The external roller is arranged outside of the loop of the endless belt and the inner roller is arranged inside of the loop of the endless belt. The endless belt is sandwiched between the external roller and the internal roller. A surface hardness of the external roller and a surface hardness of the internal roller are 50 degrees or more in an asker C scale. A logarithm (LogR) of volume resistivity of the intermediate transfer member is 10.0 or less.

Abstract translation: 传送装置包括环形带，外部辊和内部辊。 外部辊布置在环形带的环的外侧，内侧辊布置在环形带的环的内部。 环形带夹在外部辊和内部辊之间。 外辊的表面硬度和内辊的表面硬度在铸坯C尺度上为50度以上。 中间转印体的体积电阻率的对数（LogR）为10.0以下。

公开(公告)号：US20080112734A1

公开(公告)日：2008-05-15

申请号：US11934981

申请日：2007-11-05

Applicant: Masaharu FURUYA ,  Kazuchika SAEKI ,  Toshitaka YAMAGUCHI ,  Takahiro NAKAYAMA ,  Takuya SEKINE

Inventor： Masaharu FURUYA ,  Kazuchika SAEKI ,  Toshitaka YAMAGUCHI ,  Takahiro NAKAYAMA ,  Takuya SEKINE

IPC: G03G15/08

CPC classification number: G03G15/161 ,  G03G15/0136 ,  G03G15/0194 ,  G03G2215/0132

Abstract: A belt member faces a plurality of carrying bodies that respectively carry toner images or developers. A plurality of facing members respectively faces the carrying bodies via the belt member. A detaching unit brings at least one of the facing members to face a corresponding carrying body and detaches other facing members from other carrying bodies. A contacting member contacts the belt member to detach the belt member from the other carrying bodies when the detaching unit detaches the other facing members from the other carrying bodies.

Abstract translation: 带构件面向分别承载调色剂图像或显影剂的多个携带体。 多个面对构件分别经由带构件面对承载体。 分离单元使至少一个面对构件面对相应的承载体，并将其它面对构件与其它承载体分离。 当分离单元将另一个面对构件与其它承载体分离时，接触构件接触带构件以将带构件从其它承载体分离。

公开(公告)号：US20070286640A1

公开(公告)日：2007-12-13

申请号：US11759657

申请日：2007-06-07

Applicant: Tsutomu KATOH ,  Mitsuru Takahashi ,  Kazuchika Saeki ,  Nobuto Yokokawa ,  Kazuosa Kuma ,  Takeshi Fukao

Inventor： Tsutomu KATOH ,  Mitsuru Takahashi ,  Kazuchika Saeki ,  Nobuto Yokokawa ,  Kazuosa Kuma ,  Takeshi Fukao

IPC: G03G15/16

CPC classification number: G03G21/168 ,  G03G15/1615 ,  G03G2215/0119 ,  G03G2221/1642 ,  G03G2221/1657 ,  G03G2221/1684

Abstract: A transfer belt is driven by a plurality of supporting rollers. A unit frame supports the supporting rollers in a rotatable manner. At least one of the supporting rollers includes a cylindrical member having a substantially same outer diameter over an entire length thereof. Each end portion of the cylindrical member in a longitudinal direction is supported by the unit frame via a bearing in a rotatable manner.

Abstract translation: 转印带由多个支撑辊驱动。 单元框架以可旋转的方式支撑支撑辊。 支撑辊中的至少一个包括在其整个长度上具有基本上相同的外径的圆柱形构件。 圆柱形构件的纵向方向的每个端部通过轴承以可旋转的方式由单元框架支撑。

公开(公告)号：US20060285873A1

公开(公告)日：2006-12-21

申请号：US11452969

申请日：2006-06-15

Applicant: Kazuchika Saeki

Inventor： Kazuchika Saeki

IPC: G03G15/16

CPC classification number: G03G15/168 ,  G03G2215/0106

Abstract: An image forming apparatus includes an image bearing member configured to bear an image on a surface thereof, a transfer unit configured to transfer the image formed on the surface of the image bearing member onto a recording medium, a bias applying unit configured to apply a bias voltage to the transfer unit to remove a developer adhered on a surface of the transfer unit to the surface of the image bearing member, a detecting unit configured to detect a width of the recording medium in a sheet conveyance direction, and a control unit configured to determine whether a cleaning operation of the transfer unit is performed, based on the width of the recording medium detected by the detecting unit and a number of the recording medium printed.

公开(公告)号：US20050047816A1

公开(公告)日：2005-03-03

申请号：US10926094

申请日：2004-08-26

Applicant: Satoru Uchida ,  Kiyoshi Horikawa ,  Hiroyoshi Haga ,  Kazuchika Saeki

Inventor： Satoru Uchida ,  Kiyoshi Horikawa ,  Hiroyoshi Haga ,  Kazuchika Saeki

IPC: G03G15/16

CPC classification number: G03G15/168

Abstract: A cleaning device is used in an image forming apparatus to remove residual attachments including toner and paper powders from a surface of a movable intermediate transfer element onto which toner images are transferred from an image carrier. The cleaning device includes a cleaning brush that contacts the surface of the intermediate transfer element to apply a bias having a predetermined polarity to the toner adhered onto the surface of the intermediate transfer element so as to make uniform a polarity of the toner. The cleaning device further includes a pressing member that contacts the surface of the intermediate transfer element with a predetermined pressure. The pressing member is disposed at a position upstream of the cleaning brush in a direction of movement of the intermediate transfer element.

Abstract translation: 在图像形成装置中使用清洁装置，从可移动的中间转印元件的表面去除包括调色剂和纸粉末在内的残留附件，调色剂图像从图像载体转印到该表面上。 清洁装置包括清洁刷，该清洁刷接触中间转印元件的表面以向附着在中间转印元件的表面上的调色剂施加具有预定极性的偏压，以使调色剂的极性均匀。 清洁装置还包括以预定压力接触中间转印元件的表面的按压构件。 按压构件设置在中间转印元件的移动方向上的清洁刷上游的位置处。

公开(公告)号：US09708143B2

公开(公告)日：2017-07-18

申请号：US14690857

申请日：2015-04-20

Applicant: Yoshiki Hozumi ,  Naoki Iwaya ,  Masaharu Furuya ,  Yasufumi Takahashi ,  Naomi Sugimoto ,  Kazuchika Saeki

Inventor： Yoshiki Hozumi ,  Naoki Iwaya ,  Masaharu Furuya ,  Yasufumi Takahashi ,  Naomi Sugimoto ,  Kazuchika Saeki

IPC: G03G15/00 ,  B65H5/02 ,  B65G15/64 ,  G03G15/16

CPC classification number: B65H5/021 ,  B65G15/64 ,  B65H2404/25 ,  B65H2404/255 ,  B65H2801/09 ,  G03G15/1615 ,  G03G2215/1623

Abstract: A belt device for an image forming apparatus, includes an endless belt; a first and second support rollers, each including a rotary shaft, that support the belt with tension; a contacted member that contacts the belt; a shaft displacement device to displace any of the rotary shafts of the support rollers; and a main rotary shaft disposed at a side of the rotary shaft of the first support roller moved by the shaft displacement device along a stretching direction of the stretched surface of the endless belt that the contacted member contacts, relative to a contact portion between the endless belt and the contacted member, and at an opposite side of the contacted member in a direction perpendicular to the stretching direction of the endless belt. As the first support roller and the second roller rotate about the main rotary shaft, the endless belt is separated from the contacted member.

公开(公告)号：US20170146931A1

公开(公告)日：2017-05-25

申请号：US15389810

申请日：2016-12-23

Applicant: Shinya TANAKA ,  Naomi Sugimoto ,  Haruo Iimura ,  Shinji Aoki ,  Yasuhiko Ogino ,  Kazuchika Saeki ,  Keigo Nakamura

Inventor： Shinya TANAKA ,  Naomi Sugimoto ,  Haruo Iimura ,  Shinji Aoki ,  Yasuhiko Ogino ,  Kazuchika Saeki ,  Keigo Nakamura

IPC: G03G15/16 ,  G03G15/00

CPC classification number: G03G15/1675 ,  G03G15/0131 ,  G03G15/0189 ,  G03G15/1665 ,  G03G15/80

Abstract: An image forming apparatus includes a transfer member configured to abut against an image carrier for carrying a toner image to form a transfer nip; and a power supply configured to output a bias voltage for transferring the toner image on the image carrier onto a recording medium nipped in the transfer nip. The bias voltage includes a first voltage for transferring the toner image from the image carrier onto the recording medium in a transfer direction and a second voltage having an opposite polarity of the first voltage, the first and the second voltages being alternately output. A time-averaged value of the bias voltage is set to a polarity in the transfer direction and is set in the transfer direction side with respect to a median between a maximum and a minimum of the bias voltage.

公开(公告)号：US09599934B2

公开(公告)日：2017-03-21

申请号：US14796353

申请日：2015-07-10

Applicant: Yoshiki Hozumi ,  Naomi Sugimoto ,  Kazuchika Saeki ,  Yasufumi Takahashi ,  Naoki Iwaya ,  Masaharu Furuya

Inventor： Yoshiki Hozumi ,  Naomi Sugimoto ,  Kazuchika Saeki ,  Yasufumi Takahashi ,  Naoki Iwaya ,  Masaharu Furuya

IPC: G03G15/16

CPC classification number: G03G15/1605 ,  G03G15/167 ,  G03G2215/0129

Abstract: An image forming apparatus includes a toner image forming device to form a toner image on a rotatable toner image bearer, a looped belt to carry a recording medium, a support roller to rotate the belt, a pressing member to press the belt against the toner image bearer, a transfer electric field generator to form an electric field to transfer the toner image onto the recording medium, and a contact member to contact an end surface of the belt as the belt moves to one side in a belt width direction. The belt includes a first portion pressed against the toner image bearer by the pressing member and a second portion adjoining the first portion. A relative position of the support roller relative to the toner image bearer and the pressing member is determined such that the second portion of the belt contacts the toner image bearer.

公开(公告)号：US09376257B2

公开(公告)日：2016-06-28

申请号：US13960098

申请日：2013-08-06

Applicant: Yoshiki Hozumi ,  Naomi Sugimoto ,  Yuuji Sawai ,  Kazuchika Saeki

Inventor： Yoshiki Hozumi ,  Naomi Sugimoto ,  Yuuji Sawai ,  Kazuchika Saeki

IPC: B65G15/64 ,  G03G15/16

CPC classification number: B65G39/16 ,  B65G15/64 ,  G03G15/1615 ,  G03G2215/00151

Abstract: A belt tracking system for controlling the lateral position of a movable belt entrained about a plurality of generally parallel rollers for moving in a trans-axial direction perpendicular to an axial direction in which the rollers extend parallel to each other includes a roller shaft, a slidable member, and a rotation restrictor. The roller shaft extends outward in the axial direction from an axial end of a specific one of the plurality of generally parallel rollers. The slidable member is slidably disposed around the roller shaft to move along the roller shaft as the belt moves laterally outward in the axial direction. The rotation restrictor is disposed adjacent to the slidable member to restrict rotation of the slidable member around the roller shaft.

Abstract translation: 用于控制夹带在多个大致平行的辊上的可移动带的横向位置的带跟踪系统，用于沿垂直于彼此平行延伸的轴向方向的轴向方向运动的横轴方向包括辊轴，可滑动的 会员和旋转限制器。 辊轴从多个大致平行的辊中的特定一个的轴向端部沿轴向向外延伸。 滑动构件围绕辊轴可滑动地设置，以便当带沿轴向横向向外移动时沿着滚轴移动。 旋转限制器邻近可滑动构件设置以限制可滑动构件围绕辊轴的旋转。

公开(公告)号：US20160139553A1

公开(公告)日：2016-05-19

申请号：US14924839

申请日：2015-10-28

Applicant: Yoshiki HOZUMI ,  Naomi SUGIMOTO ,  Kazuchika SAEKI

Inventor： Yoshiki HOZUMI ,  Naomi SUGIMOTO ,  Kazuchika SAEKI

IPC: G03G15/00 ,  B65H5/36 ,  B65H37/00 ,  B65H5/02

CPC classification number: G03G15/6529 ,  B65H5/021 ,  B65H5/36 ,  B65H29/16 ,  B65H2301/4473 ,  B65H2301/531 ,  B65H2402/31 ,  B65H2402/32 ,  B65H2404/255 ,  B65H2404/2693 ,  G03G15/161 ,  G03G15/1615 ,  G03G15/1665 ,  G03G15/657 ,  B65H2220/01 ,  B65H2220/02

Abstract: A recording medium conveying device includes an endless belt to convey a recording medium, a plurality of support rollers around which the belt is wound, to rotate the belt, and a cleaner in contact with the belt to clean the belt. One of the plurality of support rollers is a separation support roller, mounted on a tiltable rotary shaft, to separate the recording medium from the belt using a curvature of the separation support roller. The separation support roller includes a contact member to contact an edge of the belt when the belt laterally moves toward one side of the belt.

Abstract translation: 记录介质输送装置包括用于输送记录介质的环形带，缠绕带的多个支撑辊以使带旋转，以及与带接触的清洁器以清洁带。 多个支撑辊中的一个是分离支撑辊，其安装在可倾斜的旋转轴上，以使用分离支撑辊的曲率将记录介质与带分离。 分离支撑辊包括当带横向移动到带的一侧时接触带的边缘的接触构件。