公开(公告)号：US20120263505A1

公开(公告)日：2012-10-18

申请号：US13271140

申请日：2011-10-11

申请人： Yoichi YAMADA ,  Tomohiro ARUGA ,  Noboru SAKURAI ,  Katsumi Okamoto ,  Hiroshi Kato ,  Masanao Kunugi ,  Takatomo Fukumoto

发明人： Yoichi YAMADA ,  Tomohiro ARUGA ,  Noboru SAKURAI ,  Katsumi Okamoto ,  Hiroshi Kato ,  Masanao Kunugi ,  Takatomo Fukumoto

IPC分类号： G03G15/08

CPC分类号： G03G15/0818 ,  G03G2215/0634

摘要： A developing device includes a toner particle-bearing roller that bears toner particles on its surface and develops a latent image borne by an image-bearing member with those toner particles, the toner particle-bearing roller has a projection portion disposed on its surface, the projection portion having a top surface having a flat portion, and a width of the top surface being equal to or more than a volume average particle diameter of the toner particles.

摘要翻译： 显影装置包括：调色剂颗粒承载辊，其表面上带有调色剂颗粒，并且通过这些调色剂颗粒显影由图像承载部件承载的潜像，调色剂颗粒承载辊具有设置在其表面上的突出部分， 突起部分具有平坦部分的顶表面，并且顶表面的宽度等于或大于调色剂颗粒的体积平均粒径。

公开(公告)号：US20120132231A1

公开(公告)日：2012-05-31

申请号：US13301989

申请日：2011-11-22

申请人： Daisuke MATSUMOTO ,  Yoichi YAMADA ,  Masaru KOBASHI

发明人： Daisuke MATSUMOTO ,  Yoichi YAMADA ,  Masaru KOBASHI

IPC分类号： B08B5/04 ,  A47L7/00 ,  B41J2/165 ,  B05B1/00

CPC分类号： B41J2/16532 ,  B41J2/16526 ,  B41J2/17596

摘要： In the printer, after ink is discharged from nozzle openings by making a closed space area, formed by bringing a cap into contact with a recording head, enter into a negative pressure state due to negative pressure accumulated in a discharge flow path by driving a pump, when making the negative pressure state of the closed space area be subjected to a pressure change in a direction of coming to an atmospheric pressure state, after the air flows into the closed space area by making a second opening and closing valve provided at an inflow flow path which makes the closed space area and an aerial space communicate with each other be in an opened state, the inflow of the air into the closed space area through the inflow flow path is stopped in a state where negative pressure remains in the closed space area.

摘要翻译： 在打印机中，在通过使盖与记录头接触而形成的封闭空间区域从喷嘴开口排出墨后，由于通过驱动泵而在排出流路中累积的负压而进入负压状态 当使封闭空间区域的负压状态在大气压状态的方向上经受压力变化时，在空气通过设置在流入口处的第二开闭阀流入封闭空间区域之后 使闭合空间区域和空中空间彼此连通的流动路径处于打开状态，通过流入流路将空气流入封闭空间区域，在负压保持在封闭空间内的状态下停止 区。

公开(公告)号：US20100248129A1

公开(公告)日：2010-09-30

申请号：US12727310

申请日：2010-03-19

申请人： Masahiro MAEDA ,  Yoichi YAMADA ,  Masaru KOBASHI ,  Tomohiro ARUGA ,  Takatomo FUKUMOTO ,  Atsunori KITAZAWA

发明人： Masahiro MAEDA ,  Yoichi YAMADA ,  Masaru KOBASHI ,  Tomohiro ARUGA ,  Takatomo FUKUMOTO ,  Atsunori KITAZAWA

IPC分类号： G03G21/00 ,  G03G15/02

CPC分类号： G03G15/0233 ,  G03G15/0291 ,  G03G15/22 ,  G03G21/0017 ,  G03G21/0023

摘要： An image forming apparatus includes: a latent image carrier which circumferentially rotates in a predetermined rotational direction; a conductive blade which cleans a surface of the latent image carrier by being in contact with the surface of the latent image carrier, and charges the surface of the latent image carrier at a first electric potential having the same polarity as normal charged polarity of a toner according to application of direct current voltage having the same polarity as the normal charged polarity of the toner, in a predetermined cleaning and charging position; and a charger which provides electric charge having reverse polarity to the normal charged polarity and adjusts an electric potential of the surface of the latent image carrier to a second electric potential, in a secondary charging position located on a downstream side of the cleaning and charging position in the rotational direction.

摘要翻译： 图像形成装置包括：潜像载体，其沿预定旋转方向周向旋转; 导电叶片，其通过与潜像载体的表面接触来清洁潜像载体的表面，并且以与正常的调色剂的带电极性相同极性的第一电位对潜像载体的表面进行充电 根据应用具有与调色剂的正常带电极性相同极性的直流电压，在预定的清洗和充电位置; 以及充电器，其提供具有与正常充电极性相反极性的电荷，并且在位于清洁和充电位置的下游侧的二次充电位置中将潜像载体的表面的电位调节到第二电位 在旋转方向。

公开(公告)号：US20100247187A1

公开(公告)日：2010-09-30

申请号：US12727678

申请日：2010-03-19

申请人： Masahiro MAEDA ,  Yoichi YAMADA ,  Masaru KOBASHI ,  Tomohiro ARUGA ,  Takatomo FUKUMOTO ,  Atsunori KITAZAWA

发明人： Masahiro MAEDA ,  Yoichi YAMADA ,  Masaru KOBASHI ,  Tomohiro ARUGA ,  Takatomo FUKUMOTO ,  Atsunori KITAZAWA

IPC分类号： G03G21/10

CPC分类号： G03G21/0017 ,  G03G21/0023 ,  G03G2221/0005

摘要： An image forming apparatus includes: a latent image carrier which circumferentially rotates in a predetermined rotational direction; a lubricant applying unit which applies a lubricant on a surface of the latent image carrier in a predetermined application position; a developing unit which adheres a toner including an additive having an abrasion effect onto the surface of the latent image carrier on which the lubricant is coated to form a toner image, in a development position located on a downstream side of the application position in the rotational direction; and a conductive blade which cleans and removes the toner on the surface of the latent image carrier in contact with the surface of the latent image carrier, and charges the surface of the latent image carrier, in a cleaning and charging position located on an upstream side of the development position in the rotational direction.

摘要翻译： 图像形成装置包括：潜像载体，其沿预定旋转方向周向旋转; 润滑剂施加单元，其在预定施加位置中在所述潜像载体的表面上施加润滑剂; 显影单元，其将包含具有磨损效果的添加剂的调色剂粘附在其上涂覆有润滑剂的潜像载体的表面上以形成调色剂图像，所述显影位置位于旋转的施加位置的下游侧的显影位置 方向; 以及导电叶片，其清洁和去除与潜像载体的表面接触的潜像载体的表面上的调色剂，并且在位于上游侧的清洁和充电位置对潜像载体的表面进行充电 的旋转方向的发展位置。

公开(公告)号：US20100150617A1

公开(公告)日：2010-06-17

申请号：US12620693

申请日：2009-11-18

申请人： Masahiro MAEDA ,  Yoichi YAMADA ,  Yoshiyuki KUREBAYASHI ,  Daisuke MATSUMOTO ,  Masaru KOBASHI ,  Takatomo FUKUMOTO

发明人： Masahiro MAEDA ,  Yoichi YAMADA ,  Yoshiyuki KUREBAYASHI ,  Daisuke MATSUMOTO ,  Masaru KOBASHI ,  Takatomo FUKUMOTO

IPC分类号： G03G15/08 ,  B21K1/02 ,  B21D53/00

CPC分类号： G03G15/0818 ,  B21H7/18 ,  G03G2215/0634 ,  Y10T29/4956

摘要： A method of manufacturing a developing roller, including: a first rolling process for forming a first inclined groove which is continuous in a helical shape, by rotating a first die having blades inclined with respect to an axial direction and a circumferential direction, and a non-bladed die, and feeding an unprocessed developing roller between the first die and the non-bladed die; and a second rolling process for forming a second inclined groove which is continuous in a helical shape and intersects with the first inclined groove, by rotating a second die having blades inclined with respect to an axial direction and a circumferential direction in the direction opposite to that of the first die, and the non-bladed die in the same direction opposite to that in the first rolling process, and feeding the developing roller between the second die and the non-bladed die.

摘要翻译： 一种显影辊的制造方法，其特征在于，包括：第一轧制工序，其通过旋转具有相对于轴向和圆周方向倾斜的叶片的第一模具形成螺旋状连续的第一倾斜槽， 在第一模具和非叶片模具之间进给未加工的显影辊; 以及第二轧制工艺，用于形成第二倾斜槽，该第二倾斜槽与螺旋形连续并与第一倾斜槽相交，通过旋转具有相对于轴向方向和圆周方向相对于轴向方向和圆周方向倾斜的叶片的第二模具， 的第一模具和非叶片模具在与第一轧制过程相反的方向上，并且将显影辊馈送在第二模具和非叶片模具之间。

公开(公告)号：US20100143004A1

公开(公告)日：2010-06-10

申请号：US12620243

申请日：2009-11-17

申请人： Yoichi YAMADA ,  Atsunori KITAZAWA

发明人： Yoichi YAMADA ,  Atsunori KITAZAWA

IPC分类号： G03G15/08

CPC分类号： G03G15/065

摘要： Provided is an image forming apparatus including: a latent image carrier; a charging unit; a latent image forming unit; a developing unit; a transferring unit; and a control unit that performs an image forming process by controlling the latent image carrier, the charging unit, the latent image forming unit, the developing unit and the transferring unit, wherein, during execution of the image forming process, the latent image carrier circulates by passing through the charging position, the developing position and the transferring position in a state in which at least one of toner, which is charged with a polarity opposite to the regular charging polarity, and external additive agent, which is separated from the toner and charged with a polarity opposite to the regular charging polarity, is distributed and adhered to the surface of the latent image carrier.

摘要翻译： 提供一种图像形成装置，包括：潜像载体; 充电单元; 潜像形成单元; 一个发展单位; 转移单元; 以及控制单元，其通过控制潜像载体，充电单元，潜像形成单元，显影单元和转印单元来执行图像形成处理，其中在执行图像形成处理期间，潜像载体循环 通过在与调色剂分离的极性与正常充电极性相反的调色剂和外部添加剂中的至少一种的状态下通过充电位置，显影位置和转印位置，以及 充电与正常充电极性相反的极性分布并粘附到潜像载体的表面。

公开(公告)号：US20100061764A1

公开(公告)日：2010-03-11

申请号：US12552194

申请日：2009-09-01

申请人： Yoichi YAMADA ,  Masaru KOBASHI ,  Mikio FURUMIZU

发明人： Yoichi YAMADA ,  Masaru KOBASHI ,  Mikio FURUMIZU

IPC分类号： G03G15/02

CPC分类号： G03G15/065 ,  G03G2215/0619

摘要： An image forming apparatus includes: a latent image carrier; a first charging unit which charges the latent image carrier; a second charging unit which supplies a charge having a reverse polarity of the charged polarity of the toner; a toner carrying roller which carries a toner layer containing both a contact toner which comes in direct contact with the surface of the toner carrying roller and a non-contact toner which comes in contact with the contact toner and does not come in contact with the surface of the toner carrying roller; an electric field forming unit which develops the electrostatic latent image by the toner by generating an alternate electric field as a toner fly electric field between the latent image carrier and the toner carrying roller; and a transfer unit which transfers a toner image formed by developing the electrostatic latent image to a transfer medium.

摘要翻译： 图像形成装置包括：潜像载体; 对潜像载体进行充电的第一充电单元; 第二充电单元，其提供具有与调色剂的带电极性相反极性的电荷; 携带调色剂层的调色剂承载辊，其包含与调色剂承载辊的表面直接接触的接触调色剂和与接触调色剂接触并且不与表面接触的非接触式调色剂 的调色剂承载辊; 电场形成单元，其通过在潜像载体和调色剂承载辊之间产生作为调色剂飞电场的交替电场而通过调色剂显影静电潜像; 以及转印单元，其将通过将静电潜像显影形成的调色剂图像转印到转印介质上。

公开(公告)号：US20090208255A1

公开(公告)日：2009-08-20

申请号：US12388857

申请日：2009-02-19

申请人： Yoichi YAMADA ,  Masahiro MAEDA ,  Junichi SUZUKI ,  Takatomo FUKUMOTO

发明人： Yoichi YAMADA ,  Masahiro MAEDA ,  Junichi SUZUKI ,  Takatomo FUKUMOTO

IPC分类号： G03G15/08

CPC分类号： G03G15/0818

摘要： A development roller includes a base unit having a base recess and a base projection formed in a predetermined area of a circumference surface of the base unit, and a surface layer formed on the circumference surface of the base unit and having a recess and a projection formed respectively in accordance with the base recess and the base projection of the base unit.

摘要翻译： 显影辊包括：基座单元，具有形成在基座单元的圆周表面的预定区域中的基部凹部和基部突起;以及基底单元的圆周表面上形成的凹部和突起， 分别根据基部凹部和基部单元的基底突起。

公开(公告)号：US20080298855A1

公开(公告)日：2008-12-04

申请号：US12124947

申请日：2008-05-21

申请人： Yoichi YAMADA ,  Takatomo FUKUMOTO ,  Hiroshi KATO

发明人： Yoichi YAMADA ,  Takatomo FUKUMOTO ,  Hiroshi KATO

IPC分类号： G03G15/08

CPC分类号： G03G15/0812 ,  G03G15/0818 ,  G03G2215/0634

摘要： A developing device includes a rotatable toner bearing roller and a regulation blade. The toner bearing roller has regularly-arranged projecting sections and non-projecting sections, bears toner whose volume average particle diameter is smaller than a depth of the non-projecting section relative to the projecting section, and develops a latent image borne on an image bearing member with the toner borne on the toner bearing roller. The regulation blade is for regulating an amount of the toner borne on the toner bearing roller, and abuts, with a predetermined width, against a circumferential surface of the toner bearing roller in a circumferential direction thereof in such a manner that a longitudinal direction of the regulation blade is along a direction of a rotation axis of the toner bearing roller. A tip edge of the regulation blade in a lateral direction and a thickness direction thereof is located within an abutting section having the predetermined width. The predetermined width is larger than a maximum width, in the circumferential direction, of the non-projecting section.

摘要翻译： 显影装置包括可旋转的调色剂承载辊和调节叶片。 调色剂承载辊具有规则布置的突出部分和非突出部分，其承载体积平均粒径小于非突出部分相对于突出部分的深度的调色剂，并且将图像显影载体 墨粉承载辊上的调色剂。 调节叶片用于调节承载在调色剂承载辊上的调色剂量，并以预定的宽度在调色剂承载辊的圆周方向上以其周向方向抵接在调色剂承载辊的圆周表面上， 调节叶片沿着调色剂承载辊的旋转轴线的方向。 调节叶片的横向方向和其厚度方向的前端位于具有预定宽度的邻接部分内。 预定宽度大于非突出部的圆周方向上的最大宽度。

公开(公告)号：US20080298852A1

公开(公告)日：2008-12-04

申请号：US12121640

申请日：2008-05-15

申请人： Yoichi YAMADA

发明人： Yoichi YAMADA

IPC分类号： G03G15/08

CPC分类号： G03G15/0818 ,  G03G15/0812 ,  G03G2215/0634

摘要： A developing device is provided with a toner bearing member that bears toner having core particles and a particulate external additive externally added to the core particles, and that develops a latent image borne on an image bearing member using the toner, the toner bearing member being rotatable and having projecting sections arranged in a regular manner on a surface of the toner bearing member; and a regulation member that regulates an amount of toner borne on a surface of the toner bearing member by coming into contact with that surface at a contact section, the regulation member being arranged so that a longitudinal direction of the regulation member runs along an axial direction of the toner bearing member, and so that a leading edge of the regulation member in a lateral direction and a thickness direction faces an upstream side in a rotating direction of the toner bearing member, wherein in the case where a volume mean particle size of the toner is set to a toner particle size A, a volume mean particle size of the external additive is set to an external additive particle size B, a ten-point average roughness of the projecting sections is set to a protrusion roughness C, and a distance between the leading edge and the projecting sections in the case where the leading edge of the regulation member faces the projecting sections is set to a distance D, a relationship among sizes of the toner particle size A, the external additive particle size B, the protrusion roughness C, and the distance D is so that the protrusion roughness C

摘要翻译： 显影装置设置有调色剂承载部件，该调色剂承载部件承载具有核心颗粒的调色剂和外部添加到核心颗粒的外部添加剂，并且使用调色剂将承载在图像承载部件上的潜像显影，调色剂承载部件可旋转 并且具有以规则方式布置在调色剂承载部件的表面上的突出部分; 以及调节构件，其通过在接触部处与所述表面接触来调节承载在所述调色剂承载构件的表面上的调色剂的量，所述调节构件被布置成使得所述调节构件的纵向方向沿着轴向方向 的调色剂承载部件的旋转方向上，并且使得调节部件的横向方向和厚度方向的前缘面向调色剂承载部件的旋转方向的上游侧，其中，在所述调色剂承载部件的体积平均粒径 将调色剂设定为调色剂颗粒尺寸A，将外部添加剂的体积平均粒径设定为外部添加剂粒径B，将突出部分的十点平均粗糙度设定为突出粗糙度C，将距离 在调节构件的前缘面向突出部的情况下，在前缘和突出部之间设置距离D，si 调色剂颗粒尺寸A，外部添加剂颗粒尺寸B，突起粗糙度C和距离D的zes使凸出粗糙度C <外部添加剂颗粒尺寸B <距离D <调色剂颗粒尺寸A.