公开(公告)号：EP1248157A2

公开(公告)日：2002-10-09

申请号：EP02007579.2

申请日：2002-04-03

申请人： Seiko Epson Corporation

发明人： Nakashima, Yoshihiro

IPC分类号： G03G9/08 ,  G03G9/097

CPC分类号： G03G9/0819 ,  G03G9/0821 ,  G03G13/08 ,  G03G2215/0177

摘要： The object is to prevent the occurrence of the selective consumption development.
The first aspect of the invention is a toner being characterized in that the medium-resistance external additive coating ratio of toner particles of which mother particles have equivalent particle diameters smaller than an equivalent particle diameter of a mother particle diameter equal to the mean particle diameter of the toner is set to be higher than a virtual reference curve in synchronous distribution of the equivalent particle diameters of synchronous medium-resistance external additive particles relative to the equivalent particle diameters of mother particles, wherein assuming that the medium-resistance external additive coating ratio of a toner particle of which a mother particle has an equivalent particle diameter equal to the roughness of a developing roller or the mean particle diameter of the toner is a reference value, the virtual reference curve is obtained to satisfy that the medium-resistance external additive coating ratio is constant at the reference value.
The second aspect of the invention is a toner being characterized in that the medium-resistance external additive coating ratios of toner particles in a range in which mother particles have equivalent particle diameters smaller than d1 and in a range in which mother particles have equivalent particle diameters larger than d2 are set to be higher than a virtual reference curve in synchronous distribution of the equivalent particle diameters of synchronous medium-resistance external additive particles relative to the equivalent particle diameters of mother particles, wherein assuming that the medium-resistance external additive coating ratio of a toner particle with a diameter between d1 and d2 is a reference value wherein d1 is an equivalent particle diameter of a mother particle equal to the roughness of the developing roller and d2 is an equivalent particle diameter of a mother particle diameter equal to the mean particle diameter of the toner (d1
The third aspect of the invention is a toner being characterized in that the medium-resistance external additive coating ratio of toner particles in a range in which mother particles have equivalent particle diameters larger than the roughness of the developing roller or than an equivalent particle diameter of a mother particle diameter equal to the mean particle diameter of the toner is set to be higher than a virtual reference curve in synchronous distribution of the equivalent particle diameters of synchronous medium-resistance external additive particles relative to the equivalent particle diameters of mother particles, wherein assuming that the medium-resistance external additive coating ratio of a toner particle of which a mother particle has an equivalent particle diameter equal to the roughness of a developing roller or the mean particle diameter of the toner is a reference value, the virtual reference curve is obtained to satisfy that the medium-resistance external additive coating ratio is constant at the reference value.
The fourth aspect of the invention is an image forming apparatus comprising a photoreceptor on which an electrostatic latent image is formed, a developing unit for developing the electrostatic latent image on the photoreceptor with a toner, a transfer means for transferring the developed image on the photoreceptor, and a fusing means for fusing the transferred image, the image forming apparatus being characterized in that said toner is a toner of any one of the aforementioned aspects.

摘要翻译： 目的是防止选择性消费发展的发生。 本发明的第一方面是一种调色剂，其特征在于，母粒子的母粒子的等效粒径小于母粒直径等于平均粒径的等效粒径的调色剂颗粒的中等阻抗外添加剂涂布比 在同步中等阻力外添加剂粒子的等效粒径相对于母粒子的等效粒径的同步分布中，将调色剂设定为高于虚拟参照曲线，其中假定中等阻力外添加剂的中等电阻外添加剂涂层比例 母粒子的等效粒径等于显影辊的粗糙度或调色剂的平均粒径的调色剂颗粒是参考值，获得虚拟参考曲线以满足中等阻力外部添加剂涂层 比值在参考值上是恒定的。 本发明的第二方面是一种调色剂，其特征在于，调色剂颗粒在母粒子具有小于d1的等效粒径的范围内和在母粒子具有等效粒径的范围内的中等阻力外添加剂涂布比 大于d2被设定为高于同步中等阻力外加剂粒子的当量粒径相对于母粒子的等效粒径的同步分布中的虚拟参考曲线，其中，假定中等阻力外添加剂涂层比 直径在d1和d2之间的调色剂颗粒是参考值，其中d1是等于显影辊粗糙度的母粒的当量粒径，d2是母粒直径等于平均粒径的等效粒径 调色剂的粒径（d1

公开(公告)号：EP1248157A3

公开(公告)日：2003-08-13

申请号：EP02007579.2

申请日：2002-04-03

申请人： Seiko Epson Corporation

发明人： Nakashima, Yoshihiro

IPC分类号： G03G9/08 ,  G03G9/097

CPC分类号： G03G9/0819 ,  G03G9/0821 ,  G03G13/08 ,  G03G2215/0177

摘要： The object is to prevent the occurrence of the selective consumption development. The first aspect of the invention is a toner being characterized in that the medium-resistance external additive coating ratio of toner particles of which mother particles have equivalent particle diameters smaller than an equivalent particle diameter of a mother particle diameter equal to the mean particle diameter of the toner is set to be higher than a virtual reference curve in synchronous distribution of the equivalent particle diameters of synchronous medium-resistance external additive particles relative to the equivalent particle diameters of mother particles, wherein assuming that the medium-resistance external additive coating ratio of a toner particle of which a mother particle has an equivalent particle diameter equal to the roughness of a developing roller or the mean particle diameter of the toner is a reference value, the virtual reference curve is obtained to satisfy that the medium-resistance external additive coating ratio is constant at the reference value. The second aspect of the invention is a toner being characterized in that the medium-resistance external additive coating ratios of toner particles in a range in which mother particles have equivalent particle diameters smaller than d1 and in a range in which mother particles have equivalent particle diameters larger than d2 are set to be higher than a virtual reference curve in synchronous distribution of the equivalent particle diameters of synchronous medium-resistance external additive particles relative to the equivalent particle diameters of mother particles, wherein assuming that the medium-resistance external additive coating ratio of a toner particle with a diameter between d1 and d2 is a reference value wherein d1 is an equivalent particle diameter of a mother particle equal to the roughness of the developing roller and d2 is an equivalent particle diameter of a mother particle diameter equal to the mean particle diameter of the toner (d1 The third aspect of the invention is a toner being characterized in that the medium-resistance external additive coating ratio of toner particles in a range in which mother particles have equivalent particle diameters larger than the roughness of the developing roller or than an equivalent particle diameter of a mother particle diameter equal to the mean particle diameter of the toner is set to be higher than a virtual reference curve in synchronous distribution of the equivalent particle diameters of synchronous medium-resistance external additive particles relative to the equivalent particle diameters of mother particles, wherein assuming that the medium-resistance external additive coating ratio of a toner particle of which a mother particle has an equivalent particle diameter equal to the roughness of a developing roller or the mean particle diameter of the toner is a reference value, the virtual reference curve is obtained to satisfy that the medium-resistance external additive coating ratio is constant at the reference value. The fourth aspect of the invention is an image forming apparatus comprising a photoreceptor on which an electrostatic latent image is formed, a developing unit for developing the electrostatic latent image on the photoreceptor with a toner, a transfer means for transferring the developed image on the photoreceptor, and a fusing means for fusing the transferred image, the image forming apparatus being characterized in that said toner is a toner of any one of the aforementioned aspects.

公开(公告)号：EP1248159A2

公开(公告)日：2002-10-09

申请号：EP02007580.0

申请日：2002-04-03

申请人： Seiko Epson Corporation

发明人： Nakashima, Yoshihiro

IPC分类号： G03G9/097

CPC分类号： G03G9/0819 ,  G03G9/097

摘要： The object of the invention is to achieve both the "oil-less fusing" and the elongation of lifetime of a developing unit.
The first aspect of the invention is a toner being characterized in that the external additive coating ratio of toner particles of which mother particles have equivalent particle diameters larger than the mean particle diameter of the toner is set to be lower than a virtual reference curve in synchronous distribution of the equivalent particle diameters of synchronous external additive particles relative to the equivalent particle diameters of mother particles, wherein assuming that the external additive coating ratio of a toner particle of which a mother particle has an equivalent particle diameter equal to the mean particle diameter of the toner is a reference value, the virtual reference curve is obtained to satisfy that the external additive coating ratio is constant at the reference value.
The second aspect of the invention is a toner being characterized in that the external additive coating ratio of toner particles of which mother particles have equivalent particle diameters smaller than the roughness of a developing roller is set to be higher than a virtual reference curve, wherein assuming that the external additive coating ratio of a toner particle of which a mother particle has an equivalent particle diameter equal to the roughness of the developing unit is a reference value, the virtual reference curve is obtained to satisfy that the external additive coating ratio is constant at the reference value.
The third aspect of the invention is a toner being characterized in that the external additive coating ratio of toner particles of which mother particles have equivalent particle diameters larger than the roughness of a developing roller is set to be higher than a virtual reference curve, wherein assuming that the external additive coating ratio of a toner particle of which a mother particle has an equivalent particle diameter equal to the roughness of the developing unit is a reference value, the virtual reference curve is obtained to satisfy that the external additive coating ratio is constant at the reference value.
The fourth aspect of the invention is a toner being characterized in that the external additive coating ratio of toner particles of which mother particles have equivalent particle diameters smaller than the mean particle diameter of the toner is set to be lower than a virtual reference curve, wherein assuming that the external additive coating ratio of a toner particle of which a mother particle has an equivalent particle diameter equal to the mean particle diameter of the toner is a reference value, the virtual reference curve is obtained to satisfy that the external additive coating ratio is constant at the reference value.
The fifth aspect of the invention is an image forming apparatus comprising at least a latent image carrier on which an electrostatic latent image is formed, a developing unit for developing the electrostatic latent image on the latent image carrier with a toner, a transfer means for transferring the developed image on the latent image carrier, and a fusing means for fusing the transferred image, the image forming apparatus being characterized in that said toner is a toner of any one of the aforementioned aspects.

摘要翻译： 本发明的目的是实现显影单元的“无油熔化”和寿命的延长。 本发明的第一方面是一种调色剂，其特征在于将母粒子具有大于调色剂的平均粒径的等效粒径的调色剂颗粒的外部添加剂涂布比设定为低于同步的虚拟参考曲线 相对于母粒子的等效粒径，同步外部添加剂粒子的等效粒径的分布，其中假设母粒子的等效粒径等于平均粒径的调色剂颗粒的外部添加剂涂层比例等于 调色剂是参考值，获得虚拟参考曲线以满足外部添加剂涂层比在参考值上恒定。 本发明的第二方面是一种调色剂，其特征在于将母粒子具有小于显影辊粗糙度的等效粒径的调色剂颗粒的外添加剂涂布比设定为高于虚拟参考曲线，其中假设 母粒子具有与显影单元的粗糙度相当的等效粒径的调色剂颗粒的外部添加剂涂布比是基准值，获得虚拟参考曲线以满足外部添加剂涂布比恒定在 参考值。 本发明的第三方面是一种调色剂，其特征在于将母粒子具有大于显影辊粗糙度的等效粒径的调色剂颗粒的外部添加剂涂布比设定为高于虚拟参考曲线，其中假设 母粒子具有与显影单元的粗糙度相当的等效粒径的调色剂颗粒的外部添加剂涂布比是基准值，获得虚拟参考曲线以满足外部添加剂涂布比恒定在 参考值。 本发明的第四方面是一种调色剂，其特征在于将母粒子具有小于调色剂的平均粒径的等效粒径的调色剂颗粒的外添加剂涂布比设定为低于虚拟参考曲线，其中 假设母粒子具有等于调色剂的平均粒径的等效粒径的调色剂颗粒的外部添加剂涂层比是基准值，则获得虚拟参考曲线以满足外部添加剂涂布比为 恒定在参考值。 本发明的第五方面是一种图像形成装置，其至少包括形成有静电潜像的潜像载体，用调色剂在潜像载体上显影静电潜像的显影单元，用于转印的转印装置 所述潜像载体上显影的图像，以及用于熔合所转印的图像的定影装置，所述图像形成装置的特征在于，所述调色剂是上述任一方面的调色剂。

公开(公告)号：EP0856781A3

公开(公告)日：2000-05-24

申请号：EP98300703.0

申请日：1998-01-30

申请人： SEIKO EPSON CORPORATION

发明人： Ichikawa, Kazuhiro ,  Nakashima, Yoshihiro ,  Kin, Hidenori ,  Aruga, Tomoe ,  Yamada, Yoichi ,  Takayama, Yukio ,  Ishiwatari, Tahei

IPC分类号： G03G15/08

CPC分类号： G03G15/0126 ,  G03G15/0806 ,  G03G15/0808 ,  G03G15/0812 ,  G03G15/0817 ,  G03G15/0818 ,  G03G15/0822 ,  G03G2215/0861

摘要： A developing unit (210) includes a case which accommodates toner containing pigment, a developing roller (211), a supply roller (240) having chamfered ends and formed of an elastic member arranged to be pressed against a surface of the developing roller in such a manner as to supply toner to the surface of the developing roller. Moreover, the ratio or open cells in the elastic supply roller (240) is made to be 30% or higher and depth of engagement of the supply roller to the developing roller is made to be 0.4 mm or smaller. Also a first sealing member is disposed on the side ends of the developing roller and supply roller so as to prevent leakage to the outside portion of the case. The side surfaces of the developing roller have a surface roughness of 0.5 µm or smaller in Rmax. Further, a second sealing member in the form of a film is pressed against a lower surface of the developing roller in order to prevent leakage of toner, wherein a quantity δ of displacement of the sealing member due to its abutment against the developing roller satisfies 0.1 mm

摘要翻译： 显影单元（210）包括容纳包含颜料的调色剂的壳体，显影辊（211），具有倒角端部并由弹性构件形成的供应辊（240），所述弹性构件布置成压靠在显影辊的表面上 将调色剂供应到显影辊的表面的方式。 此外，弹性供给辊（240）中的比例或开孔为30％或更高，并且供给辊与显影辊的接合深度为0.4mm或更小。 此外，第一密封构件设置在显影辊和供应辊的侧端，以防止泄漏到壳体的外部。 显影辊的侧表面在Rmax中具有0.5μm或更小的表面粗糙度。 此外，为了防止调色剂泄漏，将薄膜形式的第二密封构件压在显影辊的下表面上，其中密封构件由于其抵靠显影辊而引起的位移量δ满足0.1 mm <δ<0.8mm，第二密封部件的厚度t满足50μm

公开(公告)号：EP1324151A2

公开(公告)日：2003-07-02

申请号：EP03075922.9

申请日：1998-01-30

申请人： SEIKO EPSON CORPORATION

发明人： Ichikawa, Kazuhiro ,  Nakashima, Yoshihiro ,  Kin, Hidenori ,  Aruga, Tomoe ,  Yamada, Yoichi ,  Takayama, Yukio ,  Ishiwatari, Tahei

IPC分类号： G03G15/08

CPC分类号： G03G15/0126 ,  G03G15/0806 ,  G03G15/0808 ,  G03G15/0812 ,  G03G15/0817 ,  G03G15/0818 ,  G03G15/0822 ,  G03G2215/0861

摘要： A development unit comprising a case (230), which accommodates toner therein, a developing roller (211), rotatably supported by the case through a first shaft (212) and a supply roller (240), rotatably supported by the case through a second shaft (241), the supply roller being formed by an elastic member arranged to be pressed against the developing roller in such a manner as to supply the toner to the surface of the developing roller, characterised in that the elastic member is comprised of an expanded material having an open cell ratio of 30% or more, an engagement depth of the supply roller with respect to the developing roller is 0.4mm or less, and the toner has a shape factor SF-1 of 150 or less, and a shape factor SF-2 of 140 or less.

公开(公告)号：EP1324151B1

公开(公告)日：2008-02-20

申请号：EP03075922.9

申请日：1998-01-30

申请人： Seiko Epson Corporation

发明人： Ichikawa, Kazuhiro ,  Nakashima, Yoshihiro ,  Kin, Hidenori ,  Aruga, Tomoe ,  Yamada, Yoichi ,  Takayama, Yukio ,  Ishiwatari, Tahei

IPC分类号： G03G15/08

CPC分类号： G03G15/0126 ,  G03G15/0806 ,  G03G15/0808 ,  G03G15/0812 ,  G03G15/0817 ,  G03G15/0818 ,  G03G15/0822 ,  G03G2215/0861

公开(公告)号：EP0856781B1

公开(公告)日：2004-08-11

申请号：EP98300703.0

申请日：1998-01-30

申请人： SEIKO EPSON CORPORATION

发明人： Ichikawa, Kazuhiro ,  Nakashima, Yoshihiro ,  Kin, Hidenori ,  Aruga, Tomoe ,  Yamada, Yoichi ,  Takayama, Yukio ,  Ishiwatari, Tahei

IPC分类号： G03G15/08

CPC分类号： G03G15/0126 ,  G03G15/0806 ,  G03G15/0808 ,  G03G15/0812 ,  G03G15/0817 ,  G03G15/0818 ,  G03G15/0822 ,  G03G2215/0861

公开(公告)号：EP1248159A3

公开(公告)日：2003-08-20

申请号：EP02007580.0

申请日：2002-04-03

申请人： Seiko Epson Corporation

发明人： Nakashima, Yoshihiro

IPC分类号： G03G9/097

CPC分类号： G03G9/0819 ,  G03G9/097

摘要： The object of the invention is to achieve both the "oil-less fusing" and the elongation of lifetime of a developing unit. The first aspect of the invention is a toner being characterized in that the external additive coating ratio of toner particles of which mother particles have equivalent particle diameters larger than the mean particle diameter of the toner is set to be lower than a virtual reference curve in synchronous distribution of the equivalent particle diameters of synchronous external additive particles relative to the equivalent particle diameters of mother particles, wherein assuming that the external additive coating ratio of a toner particle of which a mother particle has an equivalent particle diameter equal to the mean particle diameter of the toner is a reference value, the virtual reference curve is obtained to satisfy that the external additive coating ratio is constant at the reference value. The second aspect of the invention is a toner being characterized in that the external additive coating ratio of toner particles of which mother particles have equivalent particle diameters smaller than the roughness of a developing roller is set to be higher than a virtual reference curve, wherein assuming that the external additive coating ratio of a toner particle of which a mother particle has an equivalent particle diameter equal to the roughness of the developing unit is a reference value, the virtual reference curve is obtained to satisfy that the external additive coating ratio is constant at the reference value. The third aspect of the invention is a toner being characterized in that the external additive coating ratio of toner particles of which mother particles have equivalent particle diameters larger than the roughness of a developing roller is set to be higher than a virtual reference curve, wherein assuming that the external additive coating ratio of a toner particle of which a mother particle has an equivalent particle diameter equal to the roughness of the developing unit is a reference value, the virtual reference curve is obtained to satisfy that the external additive coating ratio is constant at the reference value. The fourth aspect of the invention is a toner being characterized in that the external additive coating ratio of toner particles of which mother particles have equivalent particle diameters smaller than the mean particle diameter of the toner is set to be lower than a virtual reference curve, wherein assuming that the external additive coating ratio of a toner particle of which a mother particle has an equivalent particle diameter equal to the mean particle diameter of the toner is a reference value, the virtual reference curve is obtained to satisfy that the external additive coating ratio is constant at the reference value. The fifth aspect of the invention is an image forming apparatus comprising at least a latent image carrier on which an electrostatic latent image is formed, a developing unit for developing the electrostatic latent image on the latent image carrier with a toner, a transfer means for transferring the developed image on the latent image carrier, and a fusing means for fusing the transferred image, the image forming apparatus being characterized in that said toner is a toner of any one of the aforementioned aspects.

公开(公告)号：EP1324151A3

公开(公告)日：2004-12-08

申请号：EP03075922.9

申请日：1998-01-30

申请人： SEIKO EPSON CORPORATION

发明人： Ichikawa, Kazuhiro ,  Nakashima, Yoshihiro ,  Kin, Hidenori ,  Aruga, Tomoe ,  Yamada, Yoichi ,  Takayama, Yukio ,  Ishiwatari, Tahei

IPC分类号： G03G15/08

CPC分类号： G03G15/0126 ,  G03G15/0806 ,  G03G15/0808 ,  G03G15/0812 ,  G03G15/0817 ,  G03G15/0818 ,  G03G15/0822 ,  G03G2215/0861

摘要： A development unit comprising a case (230), which accommodates toner therein, a developing roller (211), rotatably supported by the case through a first shaft (212) and a supply roller (240), rotatably supported by the case through a second shaft (241), the supply roller being formed by an elastic member arranged to be pressed against the developing roller in such a manner as to supply the toner to the surface of the developing roller, characterised in that the elastic member is comprised of an expanded material having an open cell ratio of 30% or more, an engagement depth of the supply roller with respect to the developing roller is 0.4mm or less, and the toner has a shape factor SF-1 of 150 or less, and a shape factor SF-2 of 140 or less.

摘要翻译： 一种显影单元，包括容纳其中的调色剂的壳体（230），通过第一轴（212）和供应辊（240）可旋转地由壳体转动地支撑的显影辊（211），所述显影辊通过第二 轴（241），所述供应辊由弹性构件形成，所述弹性构件被布置成以将所述调色剂供应到所述显影辊的表面的方式被压靠在所述显影辊上，其特征在于，所述弹性构件包括膨胀 开孔率为30％以上的材料，供给辊相对于显影辊的接合深度为0.4mm以下，调色剂的形状因子SF-1为150以下，形状因子 SF-2为140以下。

公开(公告)号：EP0856781A2

公开(公告)日：1998-08-05

申请号：EP98300703.0

申请日：1998-01-30

申请人： SEIKO EPSON CORPORATION

发明人： Ichikawa, Kazuhiro ,  Nakashima, Yoshihiro ,  Kin, Hidenori ,  Aruga, Tomoe ,  Yamada, Yoichi ,  Takayama, Yukio ,  Ishiwatari, Tahei

IPC分类号： G03G15/08

CPC分类号： G03G15/0126 ,  G03G15/0806 ,  G03G15/0808 ,  G03G15/0812 ,  G03G15/0817 ,  G03G15/0818 ,  G03G15/0822 ,  G03G2215/0861

摘要： A developing unit of the present invention includes a case which accommodates toner containing pigment, a developing roller, a supply roller having chamfered ends and formed of an elastic member arranged to be pressed against a surface of the developing roller in such a manner as to supply toner to the surface of the developing roller. Moreover, the ratio or open cells in the elastic supply roller is made to be 30% or higher and depth of engagement of the supply roller to the developing roller is made to be 0.4 mm or smaller. Also a first sealing member is disposed on the side ends of the developing roller and supply roller so as to prevent leakage to the outside portion of the case. The side surfaces of the developing roller have a surface roughness of 0.5 µm or smaller in Rmax. Further, a second sealing member in the form of a film is pressed against a lower surface of the developing roller in order to prevent leakage of toner, wherein a quantity 6 of displacement of the sealing member due to its abutment against the developing roller satisfies 0.1 mm

摘要翻译： 本发明的显影单元包括容纳含有颜料的调色剂的壳体，显影辊，具有倒角端的供给辊，并且由弹性构件形成，所述弹性构件被布置成以提供的方式被压靠在显影辊的表面上 调色剂到显影辊的表面。 此外，将弹性供给辊中的比例或开放电池设为30％以上，供给辊与显影辊的接合深度为0.4mm以下。 此外，第一密封构件设置在显影辊和供给辊的侧端，以防止泄漏到壳体的外部。 显影辊的侧面在Rmax中的表面粗糙度为0.5μm以下。 此外，薄膜形式的第二密封构件被压靠在显影辊的下表面上，以防止调色剂泄漏，其中密封构件由于与显影辊的抵接而产生的位移量为6满足0.1 mm <δ<0.8mm，第二密封构件的厚度t满足50μm