公开(公告)号：US07769337B2

公开(公告)日：2010-08-03

申请号：US12065410

申请日：2006-08-30

Applicant: Muneharu Itoh ,  Hiroto Kidokoro

Inventor： Muneharu Itoh ,  Hiroto Kidokoro

IPC: G03G21/00

CPC classification number: G03G9/0827 ,  G03G9/0819 ,  G03G9/0823 ,  G03G21/0017

Abstract: An image forming method using a cleaning blade which prevents the spherical toner to pass through a gap between the blade and a photosensitive member and which has durability so as to be less worn away or chipped, wherein it is possible to maintain cleaning performance over a long term even in high-speed printing using spherical toner, and a non-transferred toner and external additives dropping out from colored particles less causes filming on the photosensitive member and less gives damage to the surface of the photosensitive member, is provided.A method of forming an image using a toner having an average circularity of 0.95 to 0.998 to perform developing, transferring, fixing and cleaning for removing the toner remaining on the photosensitive member after the transferring by a cleaning blade 6 abutting on the photosensitive member, wherein an abutting portion of the cleaning blade 6 on the photosensitive member has an indentation modulus (A) of 5 to 15 KPa at an indenting load of 10 mN and 23° C., a ratio of the modulus (A) to an indentation modulus (B) at an indenting load of 100 mN and 23° C. of 1.1 to 1.8, and a loss tangent (tan δ) of the cleaning blade at 20 to 50° C. in the range from 0.01 to 0.1.

Abstract translation: 一种使用清洁刮板的图像形成方法，其防止球形调色剂通过刀片和感光构件之间的间隙，并且具有耐磨性以便磨损或切碎，其中可以长时间保持清洁性能 即使在使用球形调色剂的高速印刷中，也提供了未着色的调色剂和从有色颗粒中滴出的外部添加剂较少导致感光构件上的成膜并且对感光构件的表面造成损坏。 使用平均圆形度为0.95〜0.998的调色剂形成图像的方法，以进行显影，转印，定影和清洁，以便在由抵接在感光构件上的清洁刮板6转印之后去除残留在感光构件上的调色剂，其中 清洁刮板6在感光构件上的抵接部分在压痕负荷为10mN和23℃时的压模模量（A）为5至15KPa，模量（A）与压痕模量（ B），在100mN和23℃的压痕负荷下为1.1〜1.8，在20〜50℃下的损耗角正切（tanδ）为0.01〜0.1。

公开(公告)号：US20090154971A1

公开(公告)日：2009-06-18

申请号：US12065410

申请日：2006-08-30

Applicant: Muneharu Itoh ,  Hiroto Kidokoro

Inventor： Muneharu Itoh ,  Hiroto Kidokoro

IPC: G03G21/00

CPC classification number: G03G9/0827 ,  G03G9/0819 ,  G03G9/0823 ,  G03G21/0017

Abstract: An image forming method using a cleaning blade which prevents the spherical toner to pass through a gap between the blade and a photosensitive member and which has durability so as to be less worn away or chipped, wherein it is possible to maintain cleaning performance over a long term even in high-speed printing using spherical toner, and a non-transferred toner and external additives dropping out from colored particles less causes filming on the photosensitive member and less gives damage to the surface of the photosensitive member, is provided.A method of forming an image using a toner having an average circularity of 0.95 to 0.998 to perform developing, transferring, fixing and cleaning for removing the toner remaining on the photosensitive member after the transferring by a cleaning blade 6 abutting on the photosensitive member, wherein an abutting portion of the cleaning blade 6 on the photosensitive member has an indentation modulus (A) of 5 to 15 KPa at an indenting load of 10 mN and 23° C., a ratio of the modulus (A) to an indentation modulus (B) at an indenting load of 100 mN and 23° C. of 1.1 to 1.8, and a loss tangent (tan δ) of the cleaning blade at 20 to 50° C. in the range from 0.01 to 0.1.

Abstract translation: 一种使用清洁刮板的图像形成方法，其防止球形调色剂通过刀片和感光构件之间的间隙，并且具有耐磨性以便磨损或切碎，其中可以长时间保持清洁性能 即使在使用球形调色剂的高速印刷中，也提供了未着色的调色剂和从有色颗粒中滴出的外部添加剂较少导致感光构件上的成膜并且对感光构件的表面造成损坏。 使用平均圆形度为0.95〜0.998的调色剂形成图像的方法，以进行显影，转印，定影和清洁，以便在由抵接在感光构件上的清洁刮板6转印之后去除残留在感光构件上的调色剂，其中 清洁刮板6在感光构件上的抵接部分在压痕负荷为10mN和23℃时的压模模量（A）为5至15KPa，模量（A）与压痕模量（ B）在100mN和23℃的压痕载荷下为1.1至1.8，而在20至50℃下的清洁刮板的损耗角正切（tanδ）为0.01至0.1。

公开(公告)号：US20080057434A1

公开(公告)日：2008-03-06

申请号：US11848513

申请日：2007-08-31

Applicant: Muneharu Itoh

Inventor： Muneharu Itoh

IPC: G03G9/093

CPC classification number: G03G9/0806 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/08791 ,  G03G9/09307 ,  G03G9/09321 ,  G03G9/09392

Abstract: The present invention is to provide a method of producing a non-magnetic one-component toner for developing an electrostatic image which is well-balanced between shelf stability and fixing ability at low temperature and has a good charge property so that printing performance is excellent from the viewpoint of hardly producing printing soiling such as fogs or the like. The method of producing the non-magnetic one-component toner for developing an electrostatic image comprising the steps of: a suspension process (A) of obtaining a suspension having droplets of a polymerizable monomer composition for core dispersed by suspending the polymerizable monomer composition for core comprising at least a polymerizable monomer for core and a colorant in an aqueous dispersion medium containing a dispersion stabilizer; a core particle forming process (B) of forming a core particle comprising a binder resin and a colorant by suspending and polymerizing the suspension in the presence of a polymerization initiator; and a shell layer forming process (C) of forming a shell layer to cover the core particle by adding polymerizable monomers for shell to a core particle dispersion liquid having the core particles dispersed in an aqueous dispersion medium followed by polymerization in the presence of a polymerization initiator, wherein, in the process (C), 0.1 to 10 parts by weight of a polymerizable monomer for shell containing at least a polymerizable tertiary amino compound having a structure represented by the following Chemical formula 1 with respect to the polymerizable monomer for core of 100 parts by weight is added to the core particle dispersion liquid as the polymerizable monomers for shell and polymerized, thereby, the shell layer comprising a polymer having a glass transition temperature from 70 to 120° C. is formed: wherein, R1, R2, and R3 independently represent hydrogen or an alkyl group having 1 to 4 carbon atoms respectively.

公开(公告)号：US20070099105A1

公开(公告)日：2007-05-03

申请号：US11589880

申请日：2006-10-31

Applicant: Muneharu Itoh

Inventor： Muneharu Itoh

IPC: G03G9/08

CPC classification number: G03G9/0804 ,  G03G9/0806 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/0823

Abstract: The present invention aims to provide a non-magnetic toner for developing electrostatic image which is able to perform stable high-quality printing in spite of environmental changes in, for example, temperature, humidity and so on. The non-magnetic toner for developing electrostatic image comprising a colored particle, produced by a method comprising a step of forming a droplet in an aqueous dispersion medium containing a dispersion stabilizer, wherein a volume average particle diameter of the toner for developing electrostatic image is from 3 to 10 μm and an amount of adsorbed moisture of the non-magnetic toner for developing electrostatic image at 32° C. and a relative humidity of 80% is from 0.1 to 0.25 wt %.

Abstract translation: 本发明旨在提供一种用于静电图像显影的非磁性调色剂，其能够在例如温度，湿度等环境变化的情况下能够进行稳定的高质量印刷。 用于显影静电图像的非磁性调色剂包括着色颗粒，其通过包括在含有分散稳定剂的水性分散介质中形成液滴的步骤的方法制备，其中用于静电图像显影的调色剂的体积平均粒径来自 3〜10μm，在32℃，相对湿度80％的静电影像显影用非磁性调色剂的吸湿量为0.1〜0.25重量％。

公开(公告)号：US07344814B2

公开(公告)日：2008-03-18

申请号：US10721069

申请日：2003-11-26

Applicant: Muneharu Itoh

Inventor： Muneharu Itoh

IPC: G03G9/093

CPC classification number: G03G21/0011

Abstract: A toner for an image-forming apparatus and method which apparatus has a cleaning means with a cleaning blade to remove a residual toner remaining on a surface of a photoconductive member after transfer; the toner being a mixture of a colored polymer particle and an external additive. The colored polymer particle has an average circle degree in the range of 0.95-0.995 and a volume average particle diameter in the range of 3-8 μm. The toner has an absolute value of charge amount in the range of 20-70 μC/g in a toner layer formed on a developing roll when the toner is used with the image-forming apparatus.

Abstract translation: 一种用于图像形成装置的调色剂和方法，该装置具有清洁装置，其具有清洁刮板以去除转印后残留在感光体表面上的残留调色剂; 调色剂是着色聚合物颗粒和外部添加剂的混合物。 着色聚合物颗粒的平均圆度在0.95-0.995的范围内，体积平均粒径在3-8μm的范围内。 当调色剂与图像形成装置一起使用时，调色剂在显影辊上形成的调色剂层中的电荷量的绝对值为20-70μC/ g。

公开(公告)号：US20050238986A1

公开(公告)日：2005-10-27

申请号：US11167251

申请日：2005-06-28

Applicant: Muneharu Itoh

Inventor： Muneharu Itoh

IPC: G03G9/08 ,  G03G21/00 ,  G03G21/10 ,  G03G9/093

CPC classification number: G03G21/0011

Abstract: A toner for an image forming apparatus and method which apparatus has a cleaning means with a cleaning blade to remove a residual toner remaining on a surface of a photoconductive member after transfer; the toner being a mixture of a colored polymer particle and an external additive. The colored polymer particle has an average circle degree in the range of 0.95-0.995 and a volume average particle diameter in the range of 3-8 μm. The toner has an absolute value of charge amount in the range of 20-70 μC/g in a toner layer formed on a developing roll when the toner is used with the image-forming apparatus.

Abstract translation: 一种用于图像形成装置和方法的调色剂，该装置具有清洁装置，其具有清洁刮板以去除转印后残留在感光体表面上的残留调色剂; 调色剂是着色聚合物颗粒和外部添加剂的混合物。 着色聚合物颗粒的平均圆度在0.95-0.995的范围内，体积平均粒径在3-8μm的范围内。 当调色剂与图像形成装置一起使用时，调色剂在显影辊上形成的调色剂层中的电荷量的绝对值为20-70μC/ g。