公开(公告)号：US08983323B2

公开(公告)日：2015-03-17

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： G03G15/16 ,  G03G15/14 ,  G03G15/01 ,  G03G15/00

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％。 黑色图像载体和中间转印体之间的线速度差X1满足0

公开(公告)号：US08971743B2

公开(公告)日：2015-03-03

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： G03G15/05 ,  G03G15/16 ,  G03G15/047

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：US20140147784A1

公开(公告)日：2014-05-29

申请号：US14089012

申请日：2013-11-25

申请人： Takuya Kadota ,  Yoshihiro Mikuriya ,  Tsuyoshi Nozaki ,  Yoshimichi Ishikawa ,  Kazuoki Fuwa ,  Tomohiro Fukao ,  Yuta Takeuchi ,  Tomoharu Miki ,  Takayuki Nakamura ,  Naoki Nakatake ,  Yasuhide Matsuno

发明人： Takuya Kadota ,  Yoshihiro Mikuriya ,  Tsuyoshi Nozaki ,  Yoshimichi Ishikawa ,  Kazuoki Fuwa ,  Tomohiro Fukao ,  Yuta Takeuchi ,  Tomoharu Miki ,  Takayuki Nakamura ,  Naoki Nakatake ,  Yasuhide Matsuno

IPC分类号： G03G9/08 ,  G03G15/08

CPC分类号： G03G9/08 ,  G03G9/0827 ,  G03G9/08782 ,  G03G9/09716 ,  G03G9/09725 ,  G03G15/0813

摘要： An image forming apparatus, including: an electrostatic latent image bearing member; an electrostatic latent image forming unit configured to form an electrostatic latent image on the electrostatic latent image bearing member; and a developing unit containing a toner and configured to develop the electrostatic latent image with the toner to thereby form a visible image, wherein the developing unit is a contact type one-component developing unit which includes a toner bearing member being in contact with the electrostatic latent image bearing member, wherein a contact pressure between the electrostatic latent image bearing member and the toner bearing member is 2.0×104 N/m2 to 7.5×104 N/m2, wherein the toner contains a binder resin and a releasing agent, and wherein an extracted amount of the releasing agent extracted with hexane from the toner is 10 mg/g to 25 mg/g.

摘要翻译： 一种图像形成装置，包括：静电潜像承载部件; 静电潜像形成单元，被配置为在静电潜像承载部件上形成静电潜像; 以及显影单元，其包含调色剂并且被配置为利用调色剂显影静电潜像，从而形成可见图像，其中所述显影单元是接触型单组分显影单元，其包括与静电相接触的调色剂承载部件 潜像承载部件，其中所述静电潜像承载部件和所述调色剂承载部件之间的接触压力为2.0×10 4 N / m 2至7.5×10 4 N / m 2，其中所述调色剂含有粘合剂树脂和脱模剂，并且其中 从调色剂中用己烷萃取的脱模剂的提取量为10mg / g至25mg / g。

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：US20230297004A1

公开(公告)日：2023-09-21

申请号：US18183326

申请日：2023-03-14

申请人： Shogo Kezuka ,  Yasuhide Matsuno ,  Akihiro Kawasaki ,  Yutaro Kaku

发明人： Shogo Kezuka ,  Yasuhide Matsuno ,  Akihiro Kawasaki ,  Yutaro Kaku

IPC分类号： G03G15/08 ,  G03G9/08 ,  G03G15/02

CPC分类号： G03G15/0815 ,  G03G9/0825 ,  G03G15/0258

摘要： An image forming apparatus includes an image bearer, a charger, a developing device, and a transferor. The charger is disposed in contact with the image bearer to charge the image bearer. The developing device supplies toner to the image bearer to form a toner image on the image bearer. The transferor transfers the toner image on the image bearer to a recording medium or an intermediate transferor. The developing device collects transfer residual toner remaining on the image bearer after transfer of the toner image. The toner contains base particles and an external additive. The external additive has a volume average particle diameter of 5 nm or more and 50 nm or less. A content of the external additive is 1.8% by mass or less in the toner.

公开(公告)号：US11460788B2

公开(公告)日：2022-10-04

申请号：US17407209

申请日：2021-08-20

申请人： Yasuhide Matsuno ,  Keiji Kunimi

发明人： Yasuhide Matsuno ,  Keiji Kunimi

IPC分类号： G03G15/01 ,  G06F3/12 ,  G03G15/08

摘要： An image forming apparatus includes an image forming device and circuitry. The image forming device forms an image with colorants of different colors. The circuitry determines whether there is a possibility that a shortage of a colorant adhesion amount occurs in primary-color image formation using a colorant of a primary color and cause the image forming device to perform two-color image formation in which only secondary-color image formation using a colorant of a secondary color different from the colorant of the primary color is added to the primary-color image formation using the colorant of the primary color to form an image to be formed with the colorant of the primary color, when the circuitry determines that there is a possibility that the shortage of the colorant adhesion amount occurs in the primary-color image formation using the colorant of the primary color.

公开(公告)号：US20220066348A1

公开(公告)日：2022-03-03

申请号：US17407209

申请日：2021-08-20

申请人： Yasuhide MATSUNO ,  Keiji KUNIMI

发明人： Yasuhide MATSUNO ,  Keiji KUNIMI

IPC分类号： G03G15/01 ,  G06F3/12 ,  G03G15/08

摘要： An image forming apparatus includes an image forming device and circuitry. The image forming device forms an image with colorants of different colors. The circuitry determines whether there is a possibility that a shortage of a colorant adhesion amount occurs in primary-color image formation using a colorant of a primary color and cause the image forming device to perform two-color image formation in which only secondary-color image formation using a colorant of a secondary color different from the colorant of the primary color is added to the primary-color image formation using the colorant of the primary color to form an image to be formed with the colorant of the primary color, when the circuitry determines that there is a possibility that the shortage of the colorant adhesion amount occurs in the primary-color image formation using the colorant of the primary color.

公开(公告)号：US09164435B2

公开(公告)日：2015-10-20

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：US09116460B2

公开(公告)日：2015-08-25

申请号：US14092879

申请日：2013-11-27

申请人： Yasuhide Matsuno ,  Naoki Nakatake ,  Yuji Nagatomo ,  Takahiro Sanada

发明人： Yasuhide Matsuno ,  Naoki Nakatake ,  Yuji Nagatomo ,  Takahiro Sanada

IPC分类号： G03G15/08 ,  G03G15/043

CPC分类号： G03G15/0812 ,  G03G15/043

摘要： An image forming apparatus includes a latent image forming device that forms a latent image, a latent image carrier that carries the latent image, a development device that develops the latent image, and a controller. The development device includes a developer carrier that faces the latent image carrier and carries toner on a rotary surface thereof that rotates in a rotation direction perpendicular to a width direction of the developer carrier, and a regulation member that regulates the thickness of a layer of the toner on the surface of the developer carrier. The controller moves the toner on lateral end regions in the width direction of the surface of the developer carrier toward the latent image carrier. The end regions are located outside a maximum image forming region within a regulation member facing region of the surface of the developer carrier facing the regulation member.

摘要翻译： 图像形成装置包括形成潜像的潜像形成装置，承载潜像的潜像载体，显影潜像的显影装置和控制器。 显影装置包括：显影剂载体，其面向潜像载体，并在与旋转方向垂直于显影剂载体的宽度方向旋转的旋转表面上承载调色剂;以及调节部件，其调节 显影剂载体表面上的调色剂。 控制器将显影剂载体的表面的宽度方向上的侧端区域上的调色剂移动到潜像载体。 端部区域位于显影剂载体的面向调节构件的表面的调节构件面向区域内的最大图像形成区域的外侧。

公开(公告)号：US20150035928A1

公开(公告)日：2015-02-05

申请号：US14325734

申请日：2014-07-08

申请人： Kenji NAKAMURA ,  Tamotsu IKEDA ,  Yasuhide MATSUNO ,  Minoru TOYODA ,  Masanari FUJITA ,  Takahiro YOSHIMI

发明人： Kenji NAKAMURA ,  Tamotsu IKEDA ,  Yasuhide MATSUNO ,  Minoru TOYODA ,  Masanari FUJITA ,  Takahiro YOSHIMI

IPC分类号： B41J2/385

CPC分类号： G03G15/04 ,  G03G21/1666

摘要： An optical writing head positioning mechanism includes spacers provided between a latent image carrier for carrying an electrostatic latent image and an optical writing head for exposing the latent image carrier. The spacers each include at least one carrier contact surface that contacts the latent image carrier and at least one head contact surface that contacts the optical writing head to determine an interval between the latent image carrier and the optical writing head. The latent image carrier is in contact with a cleaning member that cleans a cleaning area on a surface of the latent image carrier. In at least one of the spacers, the at least one carrier contact surface includes plural carrier contact surfaces not disposed on edges of the cleaning area, and one of the edges of the cleaning area is located between two adjacent ones of the plural carrier contact surfaces.

摘要翻译： 光写头定位机构包括设置在用于承载静电潜像的潜像载体和用于曝光潜像载体的光写头之间的间隔物。 间隔件包括至少一个接触潜影载体的载体接触表面和接触光写入头的至少一个磁头接触表面，以确定潜像载体和光写头之间的间隔。 潜像载体与清洁潜像载体的表面上的清洁区域的清洁部件接触。 在所述间隔物中的至少一个中，所述至少一个载体接触表面包括不设置在所述清洁区域的边缘上的多个载体接触表面，并且所述清洁区域的边缘中的一个位于所述多个载体接触表面中的相邻两个 。