公开(公告)号：US08518620B2

公开(公告)日：2013-08-27

申请号：US10577148

申请日：2004-10-28

申请人： Tadashi Dojo ,  Nene Dojo ,  Tomohisa Sano

发明人： Tadashi Dojo ,  Nene Dojo ,  Tomohisa Sano

IPC分类号： G03G9/083

CPC分类号： G03G9/0837 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/0825 ,  G03G9/0827 ,  G03G9/0833 ,  G03G9/0834 ,  G03G9/0835 ,  G03G9/0836 ,  G03G9/0838 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797

摘要： To provide a magnetic toner which: enables a stable image density to be obtained irrespective of a use environment; and exhibits excellent low-temperature fixability, little image deterioration upon fixation, high coloring power, and a reduced toner consumption. The present invention relates to a magnetic toner containing at least: a binder resin; and a magnetic body. The binder resin contains a polyester unit. The toner has a weight average particle size of 5.0 to 9.0 μm, a true specific gravity of 1.3 to 1.7 g/cm3, and a saturated magnetization of 20 to 35 Am2/kg in a magnetic field of 796 kA/m. The dielectric loss tangent (tan δ) of the toner satisfies (tan δH−tan δL)/tan δL≦0.20 at 100 kHz.

摘要翻译： 提供一种能够获得稳定的图像浓度而不考虑使用环境的磁性调色剂; 并且具有优异的低温定影性，定影时的图像变差小，着色力高，并且降低了调色剂消耗。 本发明涉及至少含有粘合剂树脂的磁性调色剂; 和磁体。 粘合剂树脂含有聚酯单元。 调色剂在796kA / m的磁场中的重均粒径为5.0〜9.0μm，真比重为1.3〜1.7g / cm 3，饱和磁化强度为20〜35Am 2 / kg。 调色剂的介电损耗角正切（tanδ）在100kHz满足（tanδH-tanδL）/tanδL.20.20。

公开(公告)号：US20070072102A1

公开(公告)日：2007-03-29

申请号：US10577148

申请日：2004-10-28

申请人： Tadashi Dojo ,  Nene Dojo ,  Tomohisa Sano

发明人： Tadashi Dojo ,  Nene Dojo ,  Tomohisa Sano

IPC分类号： G03G9/083

CPC分类号： G03G9/0837 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/0825 ,  G03G9/0827 ,  G03G9/0833 ,  G03G9/0834 ,  G03G9/0835 ,  G03G9/0836 ,  G03G9/0838 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797

摘要： To provide a magnetic toner which: enables a stable image density to be obtained irrespective of a use environment; and exhibits excellent low-temperature fixability, little image deterioration upon fixation, high coloring power, and a reduced toner consumption. The present invention relates to a magnetic toner containing at least: a binder resin; and a magnetic body. The binder resin contains a polyester unit. The toner has a weight average particle size of 5.0 to 9.0 μm, a true specific gravity of 1.3 to 1.7 g/cm3, and a saturated magnetization of 20 to 35 Am2/kg in a magnetic field of 796 kA/m. The dielectric loss tangent (tan δ) of the toner satisfies (tan δH−tan δL)/tan δL≦0.20 at 100 kHz.

摘要翻译： 提供一种能够获得稳定的图像浓度而不考虑使用环境的磁性调色剂; 并且具有优异的低温定影性，定影时的图像变差小，着色力高，并且降低了调色剂消耗。 本发明涉及至少含有粘合剂树脂的磁性调色剂; 和磁性体。 粘合剂树脂含有聚酯单元。 调色剂的重均粒径为5.0〜9.0μm，真比重为1.3〜1.7g / cm 3，饱和磁化强度为20〜35Am 2 / > / kg，磁场为796 kA / m。 调色剂的介电损耗角正切（tanδ）满足（tanδ> H> T>ΔL）/tanδL<= 0.20在 100 kHz。

公开(公告)号：US20060121379A1

公开(公告)日：2006-06-08

申请号：US11341415

申请日：2006-01-30

申请人： Tadashi Dojo ,  Nene Dojo ,  Tomohisa Sano

发明人： Tadashi Dojo ,  Nene Dojo ,  Tomohisa Sano

IPC分类号： G03G9/083

CPC分类号： G03G9/0837 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/0825 ,  G03G9/0827 ,  G03G9/0833 ,  G03G9/0834 ,  G03G9/0835 ,  G03G9/0836 ,  G03G9/0838 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797

摘要： To provide a magnetic toner which: enables a stable image density to be obtained irrespective of a use environment; and exhibits excellent low-temperature fixability, little image deterioration upon fixation, high coloring power, and a reduced toner consumption. The present invention relates to a magnetic toner containing at least: a binder resin; and a magnetic body. The binder resin contains a polyester unit. The toner has a weight average particle size of 5.0 to 9.0 μm, a true specific gravity of 1.3 to 1.7 g/cm3, and a saturated magnetization of 20 to 35 Am2/kg in a magnetic field of 796 kA/m. The dielectric loss tangent (tan δ) of the toner satisfies (tan δH−tan δL)/tan δL≦0.20 at 100 kHz.

摘要翻译： 提供一种能够获得稳定的图像浓度而不考虑使用环境的磁性调色剂; 并且具有优异的低温定影性，定影时的图像变差小，着色力高，并且降低了调色剂消耗。 本发明涉及至少含有粘合剂树脂的磁性调色剂; 和磁性体。 粘合剂树脂含有聚酯单元。 调色剂的重均粒径为5.0〜9.0μm，真比重为1.3〜1.7g / cm 3，饱和磁化强度为20〜35Am 2 / > / kg，磁场强度为796 kA / m。 调色剂的介电损耗角正切（tanδ）满足（tanδ> H> T>ΔL）/tanδL<= 0.20在 100 kHz。

公开(公告)号：US20070238043A1

公开(公告)日：2007-10-11

申请号：US11736057

申请日：2007-04-17

申请人： Satoshi Otake ,  Masayoshi Shimamura ,  Yusutaka Akashi ,  Kazunori Saiki ,  Nene Dojo ,  Minoru Ito ,  Michihisa Magome ,  Eriko Yanase ,  Tatsuya Nakamura

发明人： Satoshi Otake ,  Masayoshi Shimamura ,  Yusutaka Akashi ,  Kazunori Saiki ,  Nene Dojo ,  Minoru Ito ,  Michihisa Magome ,  Eriko Yanase ,  Tatsuya Nakamura

IPC分类号： G03G15/08

CPC分类号： G03G15/09 ,  G03G9/0827 ,  G03G9/0833 ,  G03G9/0835 ,  G03G9/0838

摘要： A developing method is provided in which a developer is carried on a developer carrying member, a thin layer of the developer is formed thereon and a latent image on a latent image bearing member is developed with a developer. The developer is composed of magnetic toner particles containing a binder resin and a magnetic powder. The magnetic powder has a saturation magnetization of 67.0 Am2/kg to 75.0 Am2/kg in a magnetic field of 79.6 kA/m (1,000 oersteds) and has a residual magnetization of 4.5 Am2/kg or less. In the surface profile of the conductive resin coat layer of the developer carrying member, the relationship 1.00≦S/A≦1.65 is satisfied where S is a surface area of regions zoned by an area A of microscopic unevenness regions from which parts exceeding a reference plane by 0.5×r (r: weight average particle diameter (μm) of a toner used) or more have been excluded.

摘要翻译： 提供了一种显影剂，其中显影剂被承载在显影剂承载构件上，在其上形成显影剂的薄层，并且潜像承载构件上的潜像用显影剂显影。 显影剂由含有粘合剂树脂和磁性粉末的磁性调色剂颗粒组成。 磁性粉末在79.6kA / m（1,000奥斯特）的磁场中具有67.0Am 2 / kg至75.0Am 2 / kg的饱和磁化强度，并且具有残留 4.5Am 2 / kg以下的磁化强度。 在显影剂承载构件的导电树脂涂层的表面轮廓中，满足关系1.00 <= S / A <= 1.65，其中S是由微观不均匀区域的区域A划分的区域的表面积，其中零件超过 已经排除了0.5xr（r：调色剂的重均粒径（mum））以上的基准面以上。

公开(公告)号：US08298658B2

公开(公告)日：2012-10-30

申请号：US11583855

申请日：2006-10-20

申请人： Masayoshi Shimamura ,  Yasuhide Goseki ,  Yasutaka Akashi ,  Kazunori Saiki ,  Satoshi Otake ,  Nene Dojo ,  Minoru Ito

发明人： Masayoshi Shimamura ,  Yasuhide Goseki ,  Yasutaka Akashi ,  Kazunori Saiki ,  Satoshi Otake ,  Nene Dojo ,  Minoru Ito

IPC分类号： B32B5/16

CPC分类号： G03G15/0818 ,  G03G2215/0634 ,  Y10T428/25 ,  Y10T428/252 ,  Y10T428/26

摘要： A developer carrying member is provided which, even in continuous copying over a long term and also even under different environmental conditions, do not cause any charge-up of toner, and prevent the toner from melt-adherent to the developer carrying member surface and developer layer thickness control member surface to maintain the state of uniform coating of a developer having a toner and to make the toner uniformly and quickly triboelectrically charged, so as to obtain high-grade images free of any image density decrease, image density non-uniformity, sleeve ghosts, fog and vertical streaks during running service. Provided are a developer carrying member having a substrate and a resin coat layer on the surface of the substrate, which resin coat layer contains at least a binder resin and a carbon black, where the graphite (002) plane obtained from X-ray diffraction of the carbon black has a lattice spacing of from 0.3370 nm or more to 0.3450 nm or less; and a developing assembly having such a developer carrying member.

摘要翻译： 提供了一种显影剂承载构件，即使在长期连续复制的情况下，甚至在不同的环境条件下，也不会引起调色剂的任何电荷，并且防止调色剂熔融粘附到显影剂承载构件表面和显影剂 以保持具有调色剂的显影剂的均匀涂布状态，并使调色剂均匀并快速摩擦带电，以获得没有任何图像密度降低，图像浓度不均匀性的高等级图像， 跑步服务期间袖子幽灵，雾和垂直条纹。 本发明提供一种显影剂承载构件，其在基材表面上具有基材和树脂涂层，该树脂涂层至少含有粘合剂树脂和炭黑，其中由X射线衍射获得的石墨（002） 碳黑的晶格间距为0.3370nm以上至0.3450nm以下， 以及具有这种显影剂承载构件的显影组件。

公开(公告)号：US20070036968A1

公开(公告)日：2007-02-15

申请号：US11583855

申请日：2006-10-20

申请人： Masayoshi Shimamura ,  Yasuhide Goseki ,  Yasutaka Akashi ,  Kazunori Saiki ,  Satoshi Otake ,  Nene Dojo ,  Minoru Ito

发明人： Masayoshi Shimamura ,  Yasuhide Goseki ,  Yasutaka Akashi ,  Kazunori Saiki ,  Satoshi Otake ,  Nene Dojo ,  Minoru Ito

IPC分类号： G03G15/06 ,  B32B5/16

CPC分类号： G03G15/0818 ,  G03G2215/0634 ,  Y10T428/25 ,  Y10T428/252 ,  Y10T428/26

摘要： A developer carrying member is provided which, even in continuous copying over a long term and also even under different environmental conditions, do not cause any charge-up of toner, and prevent the toner from melt-adherent to the developer carrying member surface and developer layer thickness control member surface to maintain the state of uniform coating of a developer having a toner and to make the toner uniformly and quickly triboelectrically charged, so as to obtain high-grade images free of any image density decrease, image density non-uniformity, sleeve ghosts, fog and vertical streaks during running service. Provided are a developer carrying member having a substrate and a resin coat layer on the surface of the substrate, which resin coat layer contains at least a binder resin and a carbon black, where the graphite (002) plane obtained from X-ray diffraction of the carbon black has a lattice spacing of from 0.3370 nm or more to 0.3450 nm or less; and a developing assembly having such a developer carrying member.

摘要翻译： 提供了一种显影剂承载构件，即使在长期连续复制的情况下，甚至在不同的环境条件下，也不会引起调色剂的任何电荷，并且防止调色剂熔融粘附到显影剂承载构件表面和显影剂 以保持具有调色剂的显影剂的均匀涂布状态，并使调色剂均匀且快速地摩擦带电，以获得没有任何图像密度降低，图像浓度不均匀性的高等级图像， 跑步服务期间袖子幽灵，雾和垂直条纹。 本发明提供一种显影剂承载构件，其在基材表面上具有基材和树脂涂层，该树脂涂层至少含有粘合剂树脂和炭黑，其中由X射线衍射获得的石墨（002） 碳黑的晶格间距为0.3370nm以上至0.3450nm以下， 以及具有这种显影剂承载构件的显影组件。

公开(公告)号：US07361442B2

公开(公告)日：2008-04-22

申请号：US11736057

申请日：2007-04-17

申请人： Satoshi Otake ,  Masayoshi Shimamura ,  Yusutaka Akashi ,  Kazunori Saiki ,  Nene Dojo ,  Minoru Ito ,  Michihisa Magome ,  Eriko Yanase ,  Tatsuya Nakamura

发明人： Satoshi Otake ,  Masayoshi Shimamura ,  Yusutaka Akashi ,  Kazunori Saiki ,  Nene Dojo ,  Minoru Ito ,  Michihisa Magome ,  Eriko Yanase ,  Tatsuya Nakamura

IPC分类号： G03G15/08

CPC分类号： G03G15/09 ,  G03G9/0827 ,  G03G9/0833 ,  G03G9/0835 ,  G03G9/0838

摘要： A developing method is provided in which a developer is carried on a developer carrying member, a thin layer of the developer is formed thereon and a latent image on a latent image bearing member is developed with a developer. The developer is composed of magnetic toner particles containing a binder resin and a magnetic powder. The magnetic powder has a saturation magnetization of 67.0 Am2/kg to 75.0 Am2/kg in a magnetic field of 79.6 kA/m (1,000 oersteds) and has a residual magnetization of 4.5 Am2/kg or less. In the surface profile of the conductive resin coat layer of the developer carrying member, the relationship 1.00≦S/A≦1.65 is satisfied where S is a surface area of regions zoned by an area A of microscopic unevenness regions from which parts exceeding a reference plane by 0.5×r (r: weight average particle diameter (μm) of a toner used) or more have been excluded.

摘要翻译： 提供了一种显影剂，其中显影剂被承载在显影剂承载构件上，在其上形成显影剂的薄层，并且潜像承载构件上的潜像用显影剂显影。 显影剂由含有粘合剂树脂和磁性粉末的磁性调色剂颗粒组成。 磁性粉末在79.6kA / m（1,000奥斯特）的磁场中具有67.0Am 2 / kg至75.0Am 2 / kg的饱和磁化强度，并且具有残留 4.5Am 2 / kg以下的磁化强度。 在显影剂承载构件的导电树脂涂层的表面轮廓中，满足关系1.00 <= S / A <= 1.65，其中S是由微观不均匀区域的区域A划分的区域的表面积，其中零件超过 已经排除了0.5xr（r：调色剂的重均粒径（mum））以上的基准面以上。