公开(公告)号：US07029815B2

公开(公告)日：2006-04-18

申请号：US10948145

申请日：2004-09-24

申请人： Yasushi Shinjo ,  Atsuko Iida ,  Haruhi Oh-Oka

发明人： Yasushi Shinjo ,  Atsuko Iida ,  Haruhi Oh-Oka

IPC分类号： G03G15/14

CPC分类号： G03G9/13 ,  G03G9/12 ,  G03G9/122

摘要： A liquid developer, a method of manufacturing the same and a method and apparatus for forming an image, which can attain high transfer efficiency and appropriate tolerance to repetitive image formation. The liquid developer includes toner particles dispersed in an electrically non-conductive liquid solvent. Each toner particle has a resin particle, which is non-soluble in the liquid developer, and pigment particles formed on the surface of the resin particle, whereby the pigment particles suppress contact between the resin particles. Preferably the resin particles have a glass transition temperature of not less than room temperature. One example of manufacturing the liquid developer includes a step of milling pigment particles in a resin particles dispersion liquid at a process temperature higher than the glass transition temperature of the resin particles, whereby the pigments are formed on the surface of the resin particles.

公开(公告)号：US06833229B2

公开(公告)日：2004-12-21

申请号：US10722488

申请日：2003-11-28

申请人： Yasushi Shinjo ,  Atsuko Iida ,  Haruhi Oh-Oka

发明人： Yasushi Shinjo ,  Atsuko Iida ,  Haruhi Oh-Oka

IPC分类号： G03G1510

CPC分类号： G03G9/13 ,  G03G9/12 ,  G03G9/122

摘要： A liquid developer, a method of manufacturing the same and a method and apparatus for forming an image, which can attain high transfer efficiency and appropriate tolerance to repetitive image formation. The liquid developer includes toner particles dispersed in an electrically non-conductive liquid solvent. Each toner particle has a resin particle, which is non-soluble in the liquid developer, and pigment particles formed on the surface of the resin particle, whereby the pigment particles suppress contact between the resin particles. Preferably the resin particles have a glass transition temperature of not less than room temperature. One example of manufacturing the liquid developer includes a step of milling pigment particles in a resin particles dispersion liquid at a process temperature higher than the glass transition temperature of the resin particles, whereby the pigments are formed on the surface of the resin particles.

公开(公告)号：US06600890B2

公开(公告)日：2003-07-29

申请号：US09974787

申请日：2001-10-12

申请人： Masahiro Hosoya ,  Hitoshi Yagi ,  Yasushi Shinjo ,  Haruhi Oh-Oka

发明人： Masahiro Hosoya ,  Hitoshi Yagi ,  Yasushi Shinjo ,  Haruhi Oh-Oka

IPC分类号： G03G1510

CPC分类号： G03G15/0121

摘要： Image forming apparatus which form an image on a substrate and uses a liquid developer containing toner particles and a solvent. One embodiment includes a latent image retaining body, a first developing surface facing the latent image retaining body at a first development station, a latent image forming unit, and a second developing surface facing the latent image retaining body at a second development station. The latent image retaining body has a photosensitive layer which has a dielectric constant ∈p [C2/Nm2] and an average thickness dp [m]. The photosensitive layer retains an image developed by the first developing surface and a latent image comprising image and non-image regions formed by the latent image forming unit. The second developing surface is supplied with a developing electrical potential having an electrical potential difference &Dgr;V from an electrical potential of non-image region of the latent image. The plurality of toner particles of the first liquid developer has a volume density &rgr;m [kg/m3], a surface density mr [kg/m2], a dielectric constant ∈r [C2/Nm2], an average radius r [m], and a density of electrical charge qr [C/kg], and the image developed on the latent image retaining body by the first developing surface has an average thickness dr [m] at the second development station. The second liquid developer has an average thickness dt [m] at the second development station and a dielectric constant ∈t [C2/Nm2], wherein following equations are satisfied, 1 × 10 - 11 ⁡ [ N ] ≤ 4 ⁢ π ⁢   ⁢ r 3 ⁢ ρ m ⁢ q r 3 ⁢ ( - q r ⁢ m r ϵ r ⁢ d r ⁢ ( d r - 1 A ⁢ d r m r ⁢ ( - Δ ⁢   ⁢ V q r + ( d r 2 ⁢   ⁢ ϵ r + d t ϵ t ) ⁢ m r ) ) ) ≤ 8 × 10 - 9 ⁡ [ N ] , ⁢ and ⁢   ⁢ A = d p ϵ p + d r ϵ r + d t ϵ t .

摘要翻译： 在基板上形成图像并使用含有调色剂颗粒和溶剂的液体显影剂的图像形成装置。 一个实施例包括潜像保持体，在第一显影台处面对潜像保持体的第一显影表面，潜像形成单元和在第二显影站处面对潜像保持体的第二显影表面。 潜像保持体具有介电常数为inp [C2 / Nm2]和平均厚度dp [m]的感光层。 感光层保持由第一显影表面显影的图像和包括由潜像形成单元形成的图像和非图像区域的潜像。 向第二显影表面提供具有与潜像的非图像区域的电位相差电位差DELTAV的显影电位。 第一液体显影剂的多个调色剂颗粒的体积密度rhom [kg / m3]，表面密度mr [kg / m2]，介电常数为inr [C2 / Nm2]，平均半径r [m] 和电荷密度qr [C / kg]，并且由第一显影面在潜像保持体上显影的图像在第二显影台具有平均厚度dr [m]。 第二液体显影剂在第二显影台具有平均厚度dt [m]，介电常数为int [C2 / Nm2]，其中满足以下等式，

公开(公告)号：US06314253B1

公开(公告)日：2001-11-06

申请号：US09471488

申请日：1999-12-23

申请人： Masahiro Hosoya ,  Hitoshi Yagi ,  Takeshi Watanabe ,  Yasushi Shinjo ,  Haruhi Oh-oka

发明人： Masahiro Hosoya ,  Hitoshi Yagi ,  Takeshi Watanabe ,  Yasushi Shinjo ,  Haruhi Oh-oka

IPC分类号： G03G1510

CPC分类号： G03G15/11

摘要： Disclosed is image forming apparatus, including a photoconductor, a charger charging the surface of the photoconductor, a light source exposing the charged surface of the photoconductor to light to form a latent image, a developing unit supplying a liquid developing agent containing a liquid component and a solid component onto the photoconductor so as to convert the latent image into a visible image, a liquid component adjusting unit for adjusting the weight of the liquid component of the liquid developing agent on the surface of the photoconductor to meet the relationship of 0.1≦Ml/Ms≦4.0, where Ms represents the weight of the solid component of the developing agent supplied onto the photoconductor, and Ml represents the weight of the Liquid component of the developing agent, and a transfer unit transferring the visible image onto an image carrier.

摘要翻译： 公开了一种图像形成装置，包括光电导体，对感光体的表面充电的充电器，将感光体的带电表面曝光以形成潜像的光源，提供含有液体成分的液体显影剂的显影单元和 将固体成分转印到感光体上，以将潜像转换为可见光图像;液体成分调节单元，用于调节光电导体表面上的液体显影剂的液体成分的重量，以满足0.1 <= M1 / Ms <= 4.0，其中Ms表示提供到光电导体上的显影剂的固体组分的重量，M1表示显影剂的液体组分的重量，以及将可见图像转印到图像上的转印单元 载体

公开(公告)号：US06725006B2

公开(公告)日：2004-04-20

申请号：US10460182

申请日：2003-06-13

申请人： Masahiro Hosoya ,  Hitoshi Yagi ,  Yasushi Shinjo ,  Haruhi Oh-Oka

发明人： Masahiro Hosoya ,  Hitoshi Yagi ,  Yasushi Shinjo ,  Haruhi Oh-Oka

IPC分类号： G03G1510

CPC分类号： G03G15/0121

摘要： Image forming apparatus which form an image on a substrate and uses a liquid developer containing toner particles and a solvent. One embodiment includes a latent image retaining body, a first developing surface facing the latent image retaining body at a first development station, a latent image forming unit, and a second developing surface facing the latent image retaining body at a second development station. The latent image retaining body has a photosensitive layer which has a dielectric constant &egr;P [C2/Nm2] and an average thickness dp [m]. The photosensitive layer retains an image developed by the first developing surface and a latent image comprising image and non-image regions formed by the latent image forming unit. The second developing surface is supplied with a developing electrical potential having an electrical potential difference &Dgr;V from an electrical potential of non-image region of the latent image. The plurality of toner particles of the first liquid developer has a volume density &rgr;m[kg/m3], a surface density mr[kg/m2], a dielectric constant &egr;r [C2/Nm2], an average radius r [m], and a density of electrical charge qr[C/kg], and the image developed on the latent image retaining body by the first developing surface has an average thickness dr [m] at the second development station. The second liquid developer has an average thickness dt [m] at the second development station and a dielectric constant &egr;t [C2/Nm2], wherein following equations are satisfied, 1 × 10 - 11 ⁡ [ N ] ≤ 4 ⁢   ⁢ π ⁢   ⁢ r 3 ⁢ ρ m ⁢ q r 3 ⁢ ( - q r ⁢ m r ϵ r ⁢ d r ⁢ ( d r - 1 A ⁢ d r m r ⁢ ( - Δ ⁢   ⁢ V q r + ( d r 2 ⁢   ⁢ ϵ r + d t ϵ t ) ⁢ m r ) ) ) ≤ 8 × 10 - 9 ⁡ [ N ] , and ⁢   ⁢ A = d p ϵ p + d r ϵ r + d t ϵ t .

摘要翻译： 在基板上形成图像并使用含有调色剂颗粒和溶剂的液体显影剂的图像形成装置。 一个实施例包括潜像保持体，在第一显影台处面对潜像保持体的第一显影表面，潜像形成单元和在第二显影站处面对潜像保持体的第二显影表面。 潜像保持体具有介电常数εP[C 2 / Nm 2]和平均厚度dp [m]的感光层。 感光层保持由第一显影表面显影的图像和包括由潜像形成单元形成的图像和非图像区域的潜像。 向第二显影表面供给具有与潜像的非图像区域的电势相差电位差ΔVa的显影电位。 第一液体显影剂的多个调色剂颗粒的体积密度rhom [kg / m 3]，表面密度mr [kg / m 2]，介电常数ε[C 2 / Nm 2 >]，平均半径r [m]和电荷密度qr [C / kg]，由第一显影面在潜像保持体上显影的图像在第二显影面上具有平均厚度dr [m] 开发站。 第二液体显影剂在第二显影台具有平均厚度dt [m]和介电常数εil[C 2 / Nm 2]，其中满足以下等式：

公开(公告)号：US06989222B2

公开(公告)日：2006-01-24

申请号：US10722512

申请日：2003-11-28

申请人： Yasushi Shinjo ,  Atsuko Iida ,  Haruhi Oh-Oka

发明人： Yasushi Shinjo ,  Atsuko Iida ,  Haruhi Oh-Oka

IPC分类号： G03G9/08

CPC分类号： G03G9/13 ,  G03G9/12 ,  G03G9/122

摘要： A liquid developer, a method of manufacturing the same and a method and apparatus for forming an image, which can attain high transfer efficiency and appropriate tolerance to repetitive image formation. The liquid developer includes toner particles dispersed in an electrically non-conductive liquid solvent. Each toner particle has a resin particle, which is non-soluble in the liquid developer, and pigment particles formed on the surface of the resin particle, whereby the pigment particles suppress contact between the resin particles. Preferably the resin particles have a glass transition temperature of not less than room temperature. One example of manufacturing the liquid developer includes a step of milling pigment particles in a resin particles dispersion liquid at a process temperature higher than the glass transition temperature of the resin particles, whereby the pigments are formed on the surface of the resin particles.

公开(公告)号：US20050064316A1

公开(公告)日：2005-03-24

申请号：US10948145

申请日：2004-09-24

申请人： Yasushi Shinjo ,  Atsuko Iida ,  Haruhi Oh-Oka

发明人： Yasushi Shinjo ,  Atsuko Iida ,  Haruhi Oh-Oka

IPC分类号： G03G9/12 ,  G03G9/13

CPC分类号： G03G9/13 ,  G03G9/12 ,  G03G9/122

摘要： A liquid developer, a method of manufacturing the same and a method and apparatus for forming an image, which can attain high transfer efficiency and appropriate tolerance to repetitive image formation. The liquid developer includes toner particles dispersed in an electrically non-conductive liquid solvent. Each toner particle has a resin particle, which is non-soluble in the liquid developer, and pigment particles formed on the surface of the resin particle, whereby the pigment particles suppress contact between the resin particles. Preferably the resin particles have a glass transition temperature of not less than room temperature. One example of manufacturing the liquid developer includes a step of milling pigment particles in a resin particles dispersion liquid at a process temperature higher than the glass transition temperature of the resin particles, whereby the pigments are formed on the surface of the resin particles.

摘要翻译： 液体显影剂及其制造方法以及用于形成图像的方法和装置，其能够获得高转印效率和对重复图像形成的适当容限。 液体显影剂包括分散在非导电液体溶剂中的调色剂颗粒。 每个调色剂颗粒具有不溶于液体显影剂的树脂颗粒和形成在树脂颗粒表面上的颜料颗粒，由此颜料颗粒抑制树脂颗粒之间的接触。 优选树脂颗粒的玻璃化转变温度不低于室温。 制造液体显影剂的一个实例包括在高于树脂颗粒的玻璃化转变温度的工艺温度下将颜料颗粒研磨在树脂颗粒分散液中的步骤，由此在树脂颗粒的表面上形成颜料。

公开(公告)号：US06689526B2

公开(公告)日：2004-02-10

申请号：US10023768

申请日：2001-12-21

申请人： Yasushi Shinjo ,  Atsuko Iida ,  Haruhi Oh-Oka

发明人： Yasushi Shinjo ,  Atsuko Iida ,  Haruhi Oh-Oka

IPC分类号： G03G912

CPC分类号： G03G9/13 ,  G03G9/12 ,  G03G9/122

摘要： A liquid developer, a method of manufacturing the same and a method and apparatus for forming an image, which can attain high transfer efficiency and appropriate tolerance to repetitive image formation. The liquid developer includes toner particles dispersed in an electrically non-conductive liquid solvent. Each toner particle has a resin particle, which is non-soluble in the liquid developer, and pigment particles formed on the surface of the resin particle, whereby the pigment particles suppress contact between the resin particles. Preferably the resin particles have a glass transition temperature of not less than room temperature. One example of manufacturing the liquid developer includes a step of milling pigment particles in a resin particles dispersion liquid at a process temperature higher than the glass transition temperature of the resin particles, whereby the pigments are formed on the surface of the resin particles.