公开(公告)号：US20070110481A1

公开(公告)日：2007-05-17

申请号：US11556041

申请日：2006-11-02

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：US20080298851A1

公开(公告)日：2008-12-04

申请号：US12121627

申请日：2008-05-15

申请人： Yoichi YAMADA ,  Hiroshi KATO ,  Tomohiro ARUGA ,  Takatomo FUKUMOTO

发明人： Yoichi YAMADA ,  Hiroshi KATO ,  Tomohiro ARUGA ,  Takatomo FUKUMOTO

IPC分类号： G03G15/08

CPC分类号： G03G15/0818 ,  G03G2215/0634

摘要： The invention provides, as an aspect thereof, an image formation apparatus that includes: an image carrier that carries a latent image; a toner carrier that has, on a surface of the toner carrier, a concave portion arrayed in a regular pattern so as to carry toner, and develops the latent image that is carried on the image carrier by means of the toner carried in the concave portion; and a voltage application section that applies a development voltage to the toner carrier for the purpose of the development of the latent image. In the configuration of an image formation apparatus according to the above-described aspect of the invention, immediately after that the toner carrier has developed the latent image, which is carried on the image carrier, by means of the toner carried in the concave portion in response to the application of the development bias to the toner carrier by the voltage application section, at least one layer of the toner remains carried in the concave portion.

摘要翻译： 本发明作为其一个方面提供了一种图像形成装置，其包括：承载潜像的图像载体; 在调色剂载体的表面上具有排列成规则图案的凹部以便携带调色剂的调色剂载体，并且借助于承载在凹部中的调色剂显影承载在图像载体上的潜像 ; 以及为了显影潜像的目的而向显影剂载体施加显影电压的电压施加部分。 在根据本发明的上述方面的图像形成装置的配置中，紧接着，调色剂载体已经通过在凹部中承载的调色剂显影载体在图像载体上的潜像 响应于通过电压施加部分将显影偏压施加到调色剂载体，至少一层调色剂保留在凹部中。

公开(公告)号：US20100248131A1

公开(公告)日：2010-09-30

申请号：US12727300

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： G03G13/16 ,  G03G21/00

CPC分类号： G03G15/0233 ,  G03G15/0291 ,  G03G15/22 ,  G03G21/0017 ,  G03G21/0023 ,  G03G21/0035 ,  G03G2221/1609

摘要： Provided is an image forming apparatus including: a latent image carrier; a lubricant applying unit configured to bring a conductive contact member into contact with a surface of the latent image carrier; a development unit configured to attach toner to the surface of the latent image carrier; and a conductive blade brought into contact with the surface of the latent image carrier at a cleaning position, wherein a bias is applied to at least one of the conductive contact member and the conductive blade such that the surface of the latent image carrier is electrified, and wherein, as the durability of the conductive blade is prolonged, a ratio of the electrification of the surface of the latent image carrier by the conductive blade and the electrification of the surface of the latent image carrier by the conductive contact member is changed.

摘要翻译： 提供一种图像形成装置，包括：潜像载体; 润滑剂施加单元，其构造成使导电接触构件与所述潜像载体的表面接触; 显影单元，其构造成将调色剂附着到潜像载体的表面; 以及在清洁位置与所述潜像载体的表面接触的导电片，其中，对所述导电接触构件和所述导电片中的至少一个施加偏压使得所述潜像载体的表面通电， 并且其中，随着导电性叶片的耐久性延长，导电性刮片的潜像载体的表面带电率与潜像载体的表面的导通性发生变化。

公开(公告)号：US20090290900A1

公开(公告)日：2009-11-26

申请号：US12429084

申请日：2009-04-23

申请人： Masahiro MAEDA ,  Tomohiro ARUGA ,  Yoichi YAMADA ,  Takatomo FUKUMOTO

发明人： Masahiro MAEDA ,  Tomohiro ARUGA ,  Yoichi YAMADA ,  Takatomo FUKUMOTO

IPC分类号： G03G15/08

CPC分类号： G03G15/0818 ,  G03G15/0898

摘要： A developing device includes: a housing that stores toner therein; a toner carrying roller that is attached to the housing by a shaft and is rotated in a predetermined rotation direction while carrying charged toner on a surface of the toner carrying roller to transport the toner to the outside of the housing; and a seal member that extends in a direction of a rotation axis of the toner carrying roller and has one end fixed to the housing and the other end in contact with the surface of the toner carrying roller to prevent the toner from leaking out of the housing, wherein a plurality of convex portions having top surfaces constituting a part of the same cylindrical surface are formed on the surface of the toner carrying roller, and at least a part of the seal member in contact with the surface of the toner carrying roller is made of a material having a contact angle of 105° or more with respect to water.

摘要翻译： 显影装置包括：在其中存储调色剂的壳体; 调色剂承载辊，其通过轴附接到壳体并且在将带电调色剂携带在调色剂承载辊的表面上以预定的旋转方向旋转以将调色剂输送到壳体的外部; 以及密封构件，其沿着调色剂承载辊的旋转轴线的方向延伸，并且一端固定到壳体，另一端与调色剂承载辊的表面接触，以防止调色剂从壳体泄漏 其中，在调色剂承载辊的表面上形成有多个凸起部分，其具有构成同一圆柱形表面的一部分的顶表面，并且与该调色剂承载辊的表面接触的密封件的至少一部分被制成 相对于水的接触角为105°以上的材料。

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：US20070177908A1

公开(公告)日：2007-08-02

申请号：US11623669

申请日：2007-01-16

申请人： Tomohiro ARUGA ,  Yoichi YAMADA ,  Noboru SAKURAI ,  Takatomo FUKUMOTO

发明人： Tomohiro ARUGA ,  Yoichi YAMADA ,  Noboru SAKURAI ,  Takatomo FUKUMOTO

IPC分类号： G03G15/08

CPC分类号： G03G15/0818

摘要： An image forming apparatus includes: an image bearing body that is rotatable about a central axis thereof, and that bears a dot-like latent image, on a surface of the image bearing body, in each of a plurality of divided regions that are arranged in rows along a direction that intersects an axial direction of the central axis at a predetermined intersection angle; and a developer bearing roller that is rotatable in order to make visible, as a developer image, the dot-like latent images borne by the image bearing body, using a developer borne on a surface of the developer bearing roller, the developer bearing roller opposing the image bearing body such that an axial direction of the developer bearing roller is parallel to the axial direction of the image bearing body, and that includes a helical groove portion on the surface of the developer bearing roller, the helical groove portion being inclined at a predetermined inclination angle with respect to the axial direction of the developer bearing roller and being formed having a uniform pitch in the axial direction, wherein a value that is a tangent of the inclination angle divided by a ratio of a moving speed of the surface of the developer bearing roller to a moving speed of the surface of the image bearing body is different from a tangent of the intersection angle.

摘要翻译： 图像形成装置包括：图像承载体，其能够围绕其中心轴线旋转并且在图像承载体的表面上具有点状潜像，所述图像承载体分布在多个分割区域中 沿着与中心轴的轴向相交的方向以预定的交叉角度排列; 以及显影剂承载辊，其可旋转以使作为显影剂图像可见的由图像承载体承载的点状潜像，使用承载在显影剂承载辊的表面上的显影剂，显影剂承载辊相对于 所述图像承载体使得所述显影剂承载辊的轴向平行于所述图像承载体的轴向方向，并且所述图像承载体在所述显影剂承载辊的表面上包括螺旋槽部分，所述螺旋槽部分倾斜于 相对于显影剂承载辊的轴向的预定倾斜角度并且在轴向方向上具有均匀的间距，其中，倾斜角的切线值除以所述倾斜角度的表面的移动速度的比率 显影轴承辊与图像承载体的表面的移动速度不同于交叉角的切线。

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：US20100150619A1

公开(公告)日：2010-06-17

申请号：US12620703

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

CPC分类号： G03G15/0818 ,  G03G2215/0634

摘要： Provided is a development device including: a development roller in which continuous spiraling inclined grooves having different inclinations with respect to an axial direction are formed so as to cross each other; and a feed roller which is in contact with the development roller and feeds toner to the development roller, wherein transportation force, which is used for transporting the toner on the development roller from one side to the other side of the axial direction of the development roller, is generated by the rotation of the feed roller.

摘要翻译： 提供一种显影装置，包括：显影辊，其中形成有相对于轴向方向具有不同倾斜度的连续螺旋倾斜槽，以便彼此交叉; 以及与显影辊接触并将调色剂供给到显影辊的进给辊，其中用于将显影辊上的调色剂从显影辊轴向方向的一侧传送到另一侧的输送力 由进给辊的旋转产生。

公开(公告)号：US20100061775A1

公开(公告)日：2010-03-11

申请号：US12511848

申请日：2009-07-29

申请人： Yoichi YAMADA ,  Daisuke MATSUMOTO ,  Takatomo FUKUMOTO

发明人： Yoichi YAMADA ,  Daisuke MATSUMOTO ,  Takatomo FUKUMOTO

IPC分类号： G03G15/08

CPC分类号： G03G15/0813 ,  G03G2215/0619

摘要： An image forming apparatus includes: a latent image holder that holds on its surface an electrostatic latent image in which an image portion and a non-image portion have different potentials; a toner carrying roller that carries a toner layer including both contact toner which directly contacts a surface of the roller and non-contact toner which contacts the contact toner but does not contact the surface of the roller; and an electric field forming unit that forms an alternating electric field to cause an electric field strength exerted between the non-image portion on the surface of the latent image holder and the surface of the toner carrying roller to be lower than a contact toner fly start electric field strength and higher than a non-contact toner fly start electric field strength, between the latent image holder and the toner carrying roller, as a toner fly electric field.

摘要翻译： 图像形成装置包括：潜像保持器，其在其表面上保持图像部分和非图像部分具有不同电位的静电潜像; 携带调色剂层的调色剂承载辊，其包括直接接触辊表面的接触调色剂和与接触调色剂接触但不接触辊的表面的非接触式调色剂; 以及电场形成单元，其形成交变电场以使施加在潜像保持器的表面上的非图像部分和调色剂承载辊的表面之间的电场强度低于接触式调色剂起始点 作为调色剂飞电场，在潜像保持器和调色剂承载辊之间，电场强度高于非接触式调色剂起飞电场强度。