公开(公告)号：US20170248896A1

公开(公告)日：2017-08-31

申请号：US15329843

申请日：2015-07-17

申请人： Naoki NAKATAKE ,  Takeshi YAMASHITA ,  Tetsushi SAKUMA ,  Mitsutoshi KICHISE ,  Tsuyoshi NOZAKI ,  Yoshihiro MIKURIYA ,  Yoshimichi ISHIKAWA ,  Atsushi YAMAMOTO ,  Kazuoki FUWA ,  Tomohiro FUKAO ,  Tomoharu MIKI

发明人： Naoki NAKATAKE ,  Takeshi YAMASHITA ,  Tetsushi SAKUMA ,  Mitsutoshi KICHISE ,  Tsuyoshi NOZAKI ,  Yoshihiro MIKURIYA ,  Yoshimichi ISHIKAWA ,  Atsushi YAMAMOTO ,  Kazuoki FUWA ,  Tomohiro FUKAO ,  Tomoharu MIKI

IPC分类号： G03G21/00 ,  G03G21/18 ,  G03G9/097

CPC分类号： G03G21/0011 ,  G03G9/08 ,  G03G9/09716 ,  G03G9/09725 ,  G03G21/1814

摘要： Image forming apparatus, including: image bearer; charging unit for electrically charging image bearer surface; developing unit for developing with toner, electrostatic latent image formed over image bearer by exposure unit for performing light exposure; transfer unit for transferring developed toner to receiving member; and cleaning unit for cleaning toner remaining over image bearer without being transferred, wherein the toner contains: external additives; and base particles made of at least binder resin and colorant, external additive content of the toner is from 4 to 7 parts by mass relative to 100 parts by mass of base particles, primary particles of at least one external additive have a number average particle diameter of 0.01 to 0.05 μm, cleaning unit includes an elastic-body blade having surface elastic modulus of from 15 to 25 N/mm2 and surface friction coefficient of from 0.5 to 0.7 at an abutment part thereof abutting on image bearer.

公开(公告)号：US20160033924A1

公开(公告)日：2016-02-04

申请号：US14791658

申请日：2015-07-06

申请人： Tomohiro FUKAO ,  Tsuyoshi NOZAKI ,  Yoshihiro MIKURIYA ,  Yoshimichi ISHIKAWA ,  Atsushi YAMAMOTO ,  Kazuoki FUWA ,  Tomoharu MIKI ,  Naoki NAKATAKE ,  Takeshi YAMASHITA ,  Tetsushi SAKUMA

发明人： Tomohiro FUKAO ,  Tsuyoshi NOZAKI ,  Yoshihiro MIKURIYA ,  Yoshimichi ISHIKAWA ,  Atsushi YAMAMOTO ,  Kazuoki FUWA ,  Tomoharu MIKI ,  Naoki NAKATAKE ,  Takeshi YAMASHITA ,  Tetsushi SAKUMA

IPC分类号： G03G21/00

CPC分类号： G03G21/0011 ,  G03G21/0017 ,  G03G2215/0132

摘要： An image forming apparatus is provided which includes an image bearer, a charger, an irradiator, a developing device to develop an electrostatic latent image on the image bearer with a toner to form a toner image, a transfer device to transfer the toner image onto a transfer medium, and a cleaner to remove toner particles remaining on the image bearer without being transferred. The toner includes a mother particle including a binder resin and a colorant and one or more external additives. At least one of the external additives includes primary particles having a number average particle diameter in the range of 0.05 to 0.30 μm. The cleaner includes an elastic body blade having a contact part with the image bearer. The contact part has a surface elastic modulus in the range of 15 to 25 N/mm2 and a surface friction coefficient in the range of 0.5 to 0.7.

摘要翻译： 提供一种图像形成装置，其包括图像载体，充电器，照射器，显影装置，用调色剂显影图像载体上的静电潜像以形成调色剂图像;转印装置，用于将调色剂图像转印到 转印介质和清洁剂以除去残留在图像载体上的调色剂颗粒而不被转印。 调色剂包括包含粘合剂树脂和着色剂的母体颗粒和一种或多种外部添加剂。 外部添加剂中的至少一种包括数均粒径为0.05〜0.30μm的一次粒子。 清洁器包括具有与图像承载体的接触部分的弹性体刀片。 接触部的表面弹性模量为15〜25N / mm 2，表面摩擦系数为0.5〜0.7。

公开(公告)号：US20140153982A1

公开(公告)日：2014-06-05

申请号：US14084127

申请日：2013-11-19

申请人： Tomoya ADACHI ,  Atsushi TAKEHARA ,  Tomohiko FUJII ,  Yutaka NAITOH ,  Minoru TOYODA ,  Hitoshi FUJIWARA ,  Yasuharu KAWARASAKI ,  Naoki NAKATAKE ,  Keiji KUNIMI ,  Takahiro SANADA ,  Yasuhide MATSUNO ,  Rumi MIYAZAKI ,  Kyoko ABE ,  Takeshi YAMASHITA ,  Yasuhiro FUJIWARA

发明人： Tomoya ADACHI ,  Atsushi TAKEHARA ,  Tomohiko FUJII ,  Yutaka NAITOH ,  Minoru TOYODA ,  Hitoshi FUJIWARA ,  Yasuharu KAWARASAKI ,  Naoki NAKATAKE ,  Keiji KUNIMI ,  Takahiro SANADA ,  Yasuhide MATSUNO ,  Rumi MIYAZAKI ,  Kyoko ABE ,  Takeshi YAMASHITA ,  Yasuhiro FUJIWARA

IPC分类号： G03G15/20

CPC分类号： G03G15/2028 ,  G03G15/2064 ,  G03G2215/2035 ,  G03G2215/2061

摘要： A fixing device includes a nip formation pad disposed opposite an inner circumferential surface of an endless belt and a pressing rotary body pressed against the nip formation pad via the endless belt to form a fixing nip between the endless belt and the pressing rotary body, through which a recording medium is conveyed. The pressing rotary body has a diameter increasing from a center to each lateral end in an axial direction thereof. The nip formation pad includes a projection disposed downstream from a rotation axis of the pressing rotary body in a recording medium conveyance direction. The projection projects toward the pressing rotary body in an amount increasing from each lateral end to a center in a longitudinal direction of the nip formation pad parallel to the axial direction of the pressing rotary body.

摘要翻译： 定影装置包括与环形带的内圆周表面相对设置的压区形成垫，以及通过环形带压靠压区形成垫的压制旋转体，以在环形带和压制旋转体之间形成定影辊隙， 传送记录介质。 按压旋转体的直径从轴心方向的中心向各侧端增大。 压区形成垫包括在记录介质传送方向上设置在按压旋转体的旋转轴线的下游的突起。 突起朝向按压旋转体突出地以与挤压旋转体的轴向方向平行的压区形成垫的纵向方向上的每个横向端部至中心的量增加。

公开(公告)号：US20170031310A1

公开(公告)日：2017-02-02

申请号：US15223189

申请日：2016-07-29

申请人： Mitsutoshi KICHISE ,  Takeshi YAMASHITA ,  Kazuki MATSUMOTO ,  Emi KITA ,  Naoki NAKATAKE ,  Takeshi SAKASHITA ,  Takuya AKIYAMA

发明人： Mitsutoshi KICHISE ,  Takeshi YAMASHITA ,  Kazuki MATSUMOTO ,  Emi KITA ,  Naoki NAKATAKE ,  Takeshi SAKASHITA ,  Takuya AKIYAMA

IPC分类号： G03G21/18

CPC分类号： G03G21/1814 ,  G03G21/0029 ,  G03G21/0076 ,  G03G21/1666 ,  G03G21/1821 ,  G03G2215/0402 ,  G03G2215/0404 ,  G03G2215/0407 ,  G03G2221/0015 ,  G03G2221/0026 ,  G03G2221/1636

摘要： A process unit includes a rotatable image bearer, an optical writing head to expose the image bearer within an maximum exposure range in an axial direction of the image bearer, a developer bearer, spacers disposed in axial end portions of the image bearer to determine a position of the optical writing head relative to the image bearer and slidingly contact the image bearer, a cleaner disposed downstream from the developer bearer in an image bearer rotation direction, and a remover to slidingly contact the axial end portion of the image bearer to remove a substance adhering thereto. In the axial direction, inner ends of the spacers are positioned inside a toner layer range of the developer bearer extending beyond a largest sheet width. The remover is disposed downstream from the cleaner and crossing a line extending from the inner end of the spacer perpendicularly to the axial direction.

摘要翻译： 处理单元包括可旋转的图像承载件，用于在图像载体的轴向方向上的最大曝光范围内曝光图像载体的光学写入头，显影剂载体，设置在图像载体的轴向端部中的间隔物，以确定位置 所述光学写入头相对于所述图像承载并滑动地接触所述图像承载体，在图像承载旋转方向上设置在所述显影剂载体的下游的清洁剂，以及用于滑动地接触所述图像载体的轴向端部以除去物质的清洁剂 坚持。 在轴向方向上，间隔件的内端定位在显影剂承载体的调色剂层范围内延伸超过最大片材宽度。 移除器设置在清洁器的下游，并且与从轴向垂直的间隔件的内端延伸的线交叉。

公开(公告)号：US20130195487A1

公开(公告)日：2013-08-01

申请号：US13749897

申请日：2013-01-25

申请人： Takeshi YAMASHITA ,  Yuji NAGATOMO ,  Naoki NAKATAKE ,  Yasuhiro FUJIWARA ,  Takafumi MIYAZAKI ,  Yasuhide MATSUNO ,  Takahiro SANADA ,  Rumi MIYAZAKI ,  Kyoko ABE ,  Tomoya ADACHI ,  Yoshie IWAKURA

发明人： Takeshi YAMASHITA ,  Yuji NAGATOMO ,  Naoki NAKATAKE ,  Yasuhiro FUJIWARA ,  Takafumi MIYAZAKI ,  Yasuhide MATSUNO ,  Takahiro SANADA ,  Rumi MIYAZAKI ,  Kyoko ABE ,  Tomoya ADACHI ,  Yoshie IWAKURA

IPC分类号： G03G15/14

CPC分类号： G03G15/14 ,  G03G15/0189 ,  G03G15/1615 ,  G03G15/5008

摘要： Provided is a color image forming apparatus that includes: image carriers that form toner image of black and other colors; an intermediate transfer body that makes contact with the image carriers; and transfer units that transfer the toner images on the image carriers to the intermediate transfer body. A line velocity difference is set between the image carriers and the intermediate transfer body. An accelerated cohesion degree of toner is equal to or larger than 54%. A linear velocity difference X1 between the image carrier for black and the intermediate transfer body satisfies a relation of 0

摘要翻译： 提供一种彩色图像形成装置，其包括：形成黑色和其他颜色的调色剂图像的图像载体; 与图像载体接触的中间转印体; 以及将图像载体上的调色剂图像转印到中间转印体的转印单元。 在图像载体和中间转印体之间设置线速度差。 调色剂的加速内聚力等于或大于54％。 黑色图像载体与中间转印体之间的线速度差X1满足0

公开(公告)号：US20130266332A1

公开(公告)日：2013-10-10

申请号：US13849862

申请日：2013-03-25

申请人： Takafumi MIYAZAKI ,  Naoki NAKATAKE ,  Yuji NAGATOMO ,  Yasuhide MATSUNO ,  Takahiro SANADA ,  Yasuhiro FUJIWARA ,  Kyoko ABE ,  Takeshi YAMASHITA ,  Tomoya ADACHI

发明人： Takafumi MIYAZAKI ,  Naoki NAKATAKE ,  Yuji NAGATOMO ,  Yasuhide MATSUNO ,  Takahiro SANADA ,  Yasuhiro FUJIWARA ,  Kyoko ABE ,  Takeshi YAMASHITA ,  Tomoya ADACHI

IPC分类号： G03G15/16

CPC分类号： G03G15/16 ,  G03G15/0189 ,  G03G15/047 ,  G03G15/1605 ,  G03G15/1675 ,  G03G21/14

摘要： An image forming apparatus including a latent image bearing member, a charger, a latent image forming device, a developing device, and a transfer device is provided. The transfer device is adapted to transfer a toner image formed on the latent image bearing member onto an intermediate transfer member or a recording medium by action of a transfer elected field in a transfer position where the latent image bearing member faces the transfer device. When a non-charged portion of the latent image bearing member that has not been charged to a predetermined potential by the charger passes through the transfer position, a strength of the transfer electric field is lowered than that in transferring the toner image.

摘要翻译： 提供一种包括潜像承载部件，充电器，潜像形成装置，显影装置和转印装置的图像形成装置。 转印装置适于通过在潜像承载部件朝向转印装置的转印位置中的转印选择区域的作用将在潜像承载部件上形成的调色剂图像转印到中间转印部件或记录介质上。 当没有被充电器充电到预定电位的潜像承载部件的未充电部分通过转印位置时，转印电场的强度比转印调色剂图像的强度要低。

公开(公告)号：US20080131162A1

公开(公告)日：2008-06-05

申请号：US11944868

申请日：2007-11-26

申请人： Naoki NAKATAKE ,  Hidekazu Shono ,  Takeshi Yamashita

发明人： Naoki NAKATAKE ,  Hidekazu Shono ,  Takeshi Yamashita

IPC分类号： G03G15/16

CPC分类号： G03G15/161

摘要： To improve the user maintainability and cost performance with respect to replacing replaceable components in an image forming apparatus using a tandem type intermediate transfer member. In an image forming apparatus provided with: primary transfer rollers that successively transfer toner images formed on a plurality of photosensitive members to an intermediate transfer belt on a surface of which the images are moved; and a secondary transfer roller that transfers in one operation the toner image on the intermediate transfer belt to a recording medium, and the plurality of photosensitive members are formed as a plurality of image carrier units that are removable with respect to the main body of the image forming apparatus, a belt cleaning member that cleans secondary transfer residual toner from the intermediate transfer belt is disposed upstream, relative to the direction of movement of the surface of the intermediate transfer belt, of the image carrier unit that is disposed uppermost in the upstream direction, and the belt cleaning member is capable of being integrally removed.

摘要翻译： 为了改善用户的可维护性和成本性能相对于使用串联型中间转印元件的图像形成装置更换可更换组件。 在具有以下功能的图像形成装置中：一次转印辊将形成在多个感光构件上的调色剂图像顺序地转印到图像移动表面上的中间转印带; 以及二次转印辊，其在一次操作中将中间转印带上的调色剂图像转印到记录介质上，并且多个感光部件形成为可相对于图像主体移除的多个图像载体单元 从中间转印带清洗二次转印残留调色剂的带清洁部件相对于中间转印带的表面的移动方向配置在上游方向最上方配置的图像载体单元的上游 并且带清洁构件能够被整体地移除。

公开(公告)号：US20160342129A1

公开(公告)日：2016-11-24

申请号：US15158025

申请日：2016-05-18

申请人： Kazuki MATSUMOTO ,  Naoki NAKATAKE ,  Emi KITA ,  Mitsutoshi KICHISE

发明人： Kazuki MATSUMOTO ,  Naoki NAKATAKE ,  Emi KITA ,  Mitsutoshi KICHISE

IPC分类号： G03G21/00

CPC分类号： G03G21/0011 ,  G03G21/105 ,  G03G2215/0132 ,  G03G2221/001

摘要： A cleaning device in accordance with the present disclosure includes a cleaning member to clean toner on an image bearer, a toner conveyor that rotates to convey toner cleaned by the cleaning member, and an agitator that includes a bent portion that is in contact with the toner conveyor, and the agitator vibrates due to the rotation of the toner conveyor. The agitator includes a plurality of arm members, and a first end of a first arm member of the plurality of arm members is attached to a second end of a second arm member of the plurality of arm members.

摘要翻译： 根据本公开的清洁装置包括清洁图像载体上的调色剂的清洁构件，旋转以输送由清洁构件清洁的调色剂的调色剂输送器，以及包括与调色剂接触的弯曲部分的搅拌器 输送机，并且搅拌器由于调色剂输送机的旋转而振动。 搅拌器包括多个臂构件，并且多个臂构件的第一臂构件的第一端附接到多个臂构件的第二臂构件的第二端。

公开(公告)号：US20100178074A1

公开(公告)日：2010-07-15

申请号：US12684545

申请日：2010-01-08

申请人： Naoki NAKATAKE ,  Atsushi Takehara ,  Toshihiko Koizumi ,  Tsuyoshi Ueda ,  Tadayoshi Uchida ,  Hajime Suzuki

发明人： Naoki NAKATAKE ,  Atsushi Takehara ,  Toshihiko Koizumi ,  Tsuyoshi Ueda ,  Tadayoshi Uchida ,  Hajime Suzuki

IPC分类号： G03G21/18 ,  G03G5/04 ,  G03G15/00 ,  G03G5/047

CPC分类号： G03G15/751 ,  G03G5/047 ,  G03G5/0514 ,  G03G5/0517 ,  G03G5/0521 ,  G03G5/0614 ,  G03G5/0672

摘要： To provide an electrophotographic photoconductor including: a substrate; a charge generating layer; and a charge transporting layer, the charge generating layer and the charge transporting layer being disposed over the substrate, wherein the charge transporting layer contains a charge transporting material represented by General Formula (I) below and an additive represented by General Formula (II) below: where R1, R2 and R3 each independently denote any one of a hydrogen atom, a halogen atom, an alkyl group which may contain a substituent, and an alkoxy group which may contain a substituent, where R4 and R5 each denote a tertiary butyl group, and R6 and R7 each independently denote one of an alkyl group which may contain a substituent, and an aryl group which may contain a substituent.

摘要翻译： 提供一种电子照相感光体，包括：基材; 电荷产生层; 电荷传输层，电荷产生层和电荷输送层设置在基板上，其中电荷输送层含有下述通式（I）表示的电荷输送材料和下述通式（II）表示的添加剂 其中R 1，R 2和R 3各自独立地表示氢原子，卤素原子，可以含有取代基的烷基中的任一个，和可以含有取代基的烷氧基，其中R 4和R 5各自表示叔丁基 ，R6和R7各自独立地表示可以含有取代基的烷基和可以含有取代基的芳基。

公开(公告)号：US20170248870A1

公开(公告)日：2017-08-31

申请号：US15597250

申请日：2017-05-17

申请人： Tomohiro KUBOTA ,  Naoki NAKATAKE ,  Yoshiyuki SHIMIZU ,  Shoh TSURITANI ,  Manabu HAMADA ,  Masato TSUJI ,  Masanari FUJITA

发明人： Tomohiro KUBOTA ,  Naoki NAKATAKE ,  Yoshiyuki SHIMIZU ,  Shoh TSURITANI ,  Manabu HAMADA ,  Masato TSUJI ,  Masanari FUJITA

IPC分类号： G03G15/08 ,  G03G21/16

CPC分类号： G03G15/0886 ,  G03G15/0865 ,  G03G15/0889 ,  G03G15/0891 ,  G03G15/0896 ,  G03G21/1647 ,  G03G21/1676

摘要： The developer container includes a rotator that is rotated in the container body, a sequence of gears disposed outside the developer container that transmits a torque to the rotator, and a container guiding portion that fits with a main body side guiding portion and guides the developer container in a direction in which the developer container is attached to a mounting portion of an image forming device main body. A first gear included in the sequence of the gears is movable between an operating position where the first gear engages with a second gear and a retracted position where the first gear is retracted. On a surface on which the container guiding portion is disposed, a part of the container guiding portion is disposed within a projected area of the first gear being disposed at the operating position.