公开(公告)号：US07575840B2

公开(公告)日：2009-08-18

申请号：US11396389

申请日：2006-03-31

申请人： Kouzou Teramoto ,  Yukinori Nakayama ,  Kousuke Satou ,  Hiroshi Mizuhata

发明人： Kouzou Teramoto ,  Yukinori Nakayama ,  Kousuke Satou ,  Hiroshi Mizuhata

IPC分类号： G03G9/00

CPC分类号： G03G9/0835 ,  G03G9/0837 ,  G03G9/0838

摘要： The toner of the present invention is characterized in that the charges rise up rapidly, the charge quantity is not insufficient nor excessive, the photoreceptor contamination is minimized and the toner is endurable under harsh conditions and against the high stress usage. The magnetic particle contained in the toner is of average particle size 0.01 μm through 0.50 μm, is of octahedron shape that is a convex polyhedron surrounded by eight triangles as a basis, each of vertexes and edges of the octahedron being in a curved surface shape and having a portion that can be taken as a straight line on the outer periphery of a projected image of said octahedron. The sphericity of the toner is 0.94 through 0.98. Here, the sphericity is defined by C2/C1, where C1 is a circumferential length of an image projected on a plane and C2 is a circumferential length of an assumed circle area as same as that of the projected image. Further, a number content of the toner of particle size 0.6 μm through 2.0 μm is smaller than 10%.

摘要翻译： 本发明的调色剂的特征在于，电荷迅速上升，电荷量不足也不过量，感光体污染最小化，并且调色剂在恶劣条件下耐受并且抵抗高应力使用。 包含在调色剂中的磁性颗粒的平均粒度为0.01μm至0.50μm，为八面体形状，是以8个三角形围绕的凸面多面体为基准，八面体的顶点和边缘为曲面形状， 具有可以被视为所述八面体的投影图像的外周上的直线的部分。 调色剂的球形度为0.94至0.98。 这里，球形度由C2 / C1定义，其中C1是投影在平面上的图像的圆周长度，C2是与投影图像相同的假定圆形区域的圆周长度。 此外，粒径为0.6μm至2.0μm的调色剂的数量少于10％。

公开(公告)号：US20060222983A1

公开(公告)日：2006-10-05

申请号：US11394349

申请日：2006-03-30

申请人： Yukinori Nakayama ,  Kousuke Satou ,  Kouzou Teramoto ,  Hiroshi Mizuhata

发明人： Yukinori Nakayama ,  Kousuke Satou ,  Kouzou Teramoto ,  Hiroshi Mizuhata

IPC分类号： G03G9/083

CPC分类号： G03G9/0835 ,  G03G9/0837 ,  G03G9/0838

摘要： The object is to provide a magnetic toner with which toner scattering, toner spent to carrier, development of scratch streaks by the magnetic brush on the photoreceptor drum can be prevented for a prolonged period and a good image characteristic (in image density and background fogging) can be maintained for a prolonged period, and an image forming method using the magnetic toner. A two-component developer comprising carriers and toner which contains magnetic particle at least in a binder resin thereof, the magnetic particle being of basically polyhedral shaped shape, vertexes and edges of said polyhedral shape being curved surfaces, said shape having peripheral parts taken as straight lines in a projected image thereof, saturation magnetization of said toner in a magnetic field of 79.6 kA/m being 4.0 to 15.0 Am2/kg, is prepared, and the toner retaining members (carriers) bearing at least said magnetic toner to which electric charge is injected are allowed to face a latent image retaining member and an electrostatic latent image on said latent image retaining member is developed with said magnetic toner.

摘要翻译： 本发明的目的是提供一种磁性调色剂，其中调色剂飞散，用于载体的调色剂，感光鼓上的磁刷产生刮痕，可以延长时间并且具有良好的图像特性（图像浓度和背景雾化） 可以维持较长时间，以及使用该磁性调色剂的图像形成方法。 至少在其粘合剂树脂中含有磁性颗粒的载体和调色剂的双组分显影剂，所述磁性颗粒基本上是多面体形状，所述多面体形状的顶点和边缘是曲面，所述形状具有周边部分 在其投影图像中的线，在79.6kA / m的磁场中的所述调色剂的饱和磁化强度为4.0至15.0Am 2 / kg，并且调色剂保持构件（载体）承载于 允许注入电荷的至少所述磁性调色剂面对潜像保持部件，并且利用所述磁性调色剂使所述潜像保持部件上的静电潜像显影。

公开(公告)号：US07575839B2

公开(公告)日：2009-08-18

申请号：US11394349

申请日：2006-03-30

申请人： Yukinori Nakayama ,  Kousuke Satou ,  Kouzou Teramoto ,  Hiroshi Mizuhata

发明人： Yukinori Nakayama ,  Kousuke Satou ,  Kouzou Teramoto ,  Hiroshi Mizuhata

IPC分类号： G03G9/00

CPC分类号： G03G9/0835 ,  G03G9/0837 ,  G03G9/0838

摘要： The object is to provide a magnetic toner with which toner scattering, toner spent to carrier, development of scratch streaks by the magnetic brush on the photoreceptor drum can be prevented for a prolonged period and a good image characteristic (in image density and background fogging) can be maintained for a prolonged period, and an image forming method using the magnetic toner. A two-component developer comprising carriers and toner which contains magnetic particle at least in a binder resin thereof, the magnetic particle being of basically polyhedral shaped shape, vertexes and edges of said polyhedral shape being curved surfaces, said shape having peripheral parts taken as straight lines in a projected image thereof, saturation magnetization of said toner in a magnetic field of 79.6 kA/m being 4.0 to 15.0 Am2/kg, is prepared, and the toner retaining members (carriers) bearing at least said magnetic toner to which electric charge is injected are allowed to face a latent image retaining member and an electrostatic latent image on said latent image retaining member is developed with said magnetic toner.

摘要翻译： 本发明的目的是提供一种磁性调色剂，其中调色剂飞散，用于载体的调色剂，感光鼓上的磁刷产生刮痕，可以延长时间并且具有良好的图像特性（图像浓度和背景雾化） 可以维持较长时间，以及使用该磁性调色剂的图像形成方法。 至少在其粘合剂树脂中含有磁性颗粒的载体和调色剂的双组分显影剂，所述磁性颗粒基本上是多面体形状，所述多面体形状的顶点和边缘是曲面，所述形状具有周边部分 在其投影图像中的线条，在79.6kA / m的磁场中所述调色剂的饱和磁化强度为4.0至15.0Am 2 / kg，并且将至少带有所述磁性调色剂的调色剂保持部件（载体） 被注入面对潜像保持构件，并且利用所述磁性调色剂使所述潜像保持构件上的静电潜像显影。

公开(公告)号：US07410740B2

公开(公告)日：2008-08-12

申请号：US11376623

申请日：2006-03-15

申请人： Yukinori Nakayama ,  Kouzou Teramoto ,  Kousuke Satou ,  Hiroshi Mizuhata

发明人： Yukinori Nakayama ,  Kouzou Teramoto ,  Kousuke Satou ,  Hiroshi Mizuhata

IPC分类号： G03G9/00

CPC分类号： G03G9/0837 ,  G03G9/0819 ,  G03G9/0827 ,  G03G9/0835 ,  G03G9/0838

摘要： The developer comprises magnetic toners and the magnetic carriers which forms magnetic ears on the surface of the developing roller. The magnetic toner is of an average particle size 0.01 μm through 0.50 μm and is of octahedron shape that is a convex polyhedron surrounded by eight triangles as a basis, each of the vertexes edges of the octahedron shape toner being in a curved surface shape and having a portion that can be taken as a straight line on the outer periphery of a projected image of the octahedron shape toner. The magnetic ears are electrically charged by the friction between the magnetic toner and the magnetic carriers and the magnetic ears on the developing roller are carried to the electrostatic latent image on the photoreceptor. The latent image is developed by the magnetic toners in the magnetic ears, in a small gap between the developing roller and the photoreceptor.

摘要翻译： 显影剂包括磁性调色剂和在显影辊表面上形成磁耳的磁性载体。 磁性调色剂的平均粒径为0.01μm至0.50μm，是八面体形状，是由八个三角形围绕的凸多面体作为基准，八面体形状调色剂的每个顶点边缘为曲面形状，并具有 可以在八面体形状调色剂的投影图像的外周上被视为直线的部分。 磁性耳朵由磁性调色剂和磁性载体之间的摩擦带电，并且显影辊上的磁耳被承载在感光体上的静电潜像上。 潜影由磁性耳朵中的磁性调色剂在显影辊和感光体之间的小间隙中显影。

公开(公告)号：US20070092818A1

公开(公告)日：2007-04-26

申请号：US11258205

申请日：2005-10-26

申请人： Hiroshi Mizuhata ,  Yukinori Nakayama ,  Kouzou Teramoto ,  Kousuke Satou ,  Akira Tanaka

发明人： Hiroshi Mizuhata ,  Yukinori Nakayama ,  Kouzou Teramoto ,  Kousuke Satou ,  Akira Tanaka

IPC分类号： G03G9/083

CPC分类号： G03G9/0832 ,  G03G9/0833 ,  G03G9/09708 ,  G03G9/09716 ,  G03G9/09725

摘要： A magnetic single component toner for electrostatic latent image development, which is used in a magnetic single component toner projection development method using an a-Si photosensitive member having a film thickness of no more than 30 μm, and a cleaning blade as a cleaning means for removing toner from the surface of this photosensitive member, so as to develop an electrostatic latent image formed on the photosensitive member, with a developing agent bearing member, comprises strontium titanate which has been rendered hydrophobic and has a specific surface area of 8.0 to 30 m2/g, and which is added as an external additive at a ratio of 0.3 to 5.0 parts by mass with respect to 100 parts by mass of the toner particle.

摘要翻译： 一种用于静电潜像显影的磁性单组分调色剂，其用于使用具有不超过30μm的膜厚的a-Si感光构件的磁性单组分调色剂投影显影方法和清洁刮板作为清洁装置 从该感光构件的表面去除调色剂，以显影形成在感光构件上的静电潜像与显影剂承载构件一起包括已经变得疏水并且具有8.0至30μm的比表面积的钛酸锶 相对于100质量份的调色剂颗粒，其以0.3-5.0质量份的比例作为外部添加剂加入。

公开(公告)号：US07582400B2

公开(公告)日：2009-09-01

申请号：US11245489

申请日：2005-10-07

申请人： Yukinori Nakayama ,  Kouzou Teramoto ,  Hiroshi Mizuhata ,  Kousuke Satou

发明人： Yukinori Nakayama ,  Kouzou Teramoto ,  Hiroshi Mizuhata ,  Kousuke Satou

IPC分类号： G03G9/083

CPC分类号： G03G9/0839 ,  G03G9/081 ,  G03G9/0833 ,  G03G9/0834 ,  G03G9/0836 ,  G03G9/0837 ,  G03G9/0838

摘要： Magnetic toner involves magnetic powder 1 having the particle shape of an octahedron 2 that is a convex polyhedron surrounded by eight triangles as a basis, each of the vertexes and edges of the octahedron being in a curved surface shape, and having a portion 3 that can be taken as a straight line on the outer periphery of its projected image. Therefore, the magnetic toner is superior in both two contradictory properties, that is the property of making it easy for a charging amount to quickly rise as well as improving the charging amount and the property of making it difficult for charge-up to occur, thereby making it possible to form a good image under a wide environment. In an image forming method, an electrostatic latent image is developed into a toner image by a magnetic one-component jumping developing method using the magnetic toner.

摘要翻译： 磁性调色剂包括磁性粉末1，其具有作为基础的八角三角形包围的凸面多面体的八面体2的粒子形状，八面体的每个顶点和边缘为曲面形状，并且具有可以 在其投影图像的外周被视为直线。 因此，磁性调色剂在两种相互矛盾的性质方面都是优越的，即使充电量容易快速上升的性质以及提高充电量和使电荷难以发生的性质， 使得在广泛的环境下形成良好的形象成为可能。 在图像形成方法中，通过使用磁性调色剂的磁性单组分跳跃显影方法将静电潜像显影成调色剂图像。

公开(公告)号：US20060222984A1

公开(公告)日：2006-10-05

申请号：US11396389

申请日：2006-03-31

申请人： Kouzou Teramoto ,  Yukinori Nakayama ,  Kousuke Satou ,  Hiroshi Mizuhata

发明人： Kouzou Teramoto ,  Yukinori Nakayama ,  Kousuke Satou ,  Hiroshi Mizuhata

IPC分类号： G03G9/083

CPC分类号： G03G9/0835 ,  G03G9/0837 ,  G03G9/0838

摘要： The toner of the present invention is characterized in that the charges rise up rapidly, the charge quantity is not insufficient nor excessive, the photoreceptor contamination is minimized and the toner is endurable under harsh conditions and against the high stress usage. The magnetic particle contained in the toner is of average particle size 0.01 μm through 0.50 μm, is of octahedron shape that is a convex polyhedron surrounded by eight triangles as a basis, each of vertexes and edges of the octahedron being in a curved surface shape and having a portion that can be taken as a straight line on the outer periphery of a projected image of said octahedron. The sphericity of the toner is 0.94 through 0.98. Here, the sphericity is defined by C2/C1, where C1 is a circumferential length of an image projected on a plane and C2 is a circumferential length of an assumed circle area as same as that of the projected image. Further, a number content of the toner of particle size 0.6 μm through 2.0 μm is smaller than 10%.

公开(公告)号：US20060216622A1

公开(公告)日：2006-09-28

申请号：US11376623

申请日：2006-03-15

申请人： Yukinori Nakayama ,  Kouzou Teramoto ,  Kousuke Satou ,  Hiroshi Mizuhata

发明人： Yukinori Nakayama ,  Kouzou Teramoto ,  Kousuke Satou ,  Hiroshi Mizuhata

IPC分类号： G03G9/083

CPC分类号： G03G9/0837 ,  G03G9/0819 ,  G03G9/0827 ,  G03G9/0835 ,  G03G9/0838

摘要： The two component developer comprises magnetic toners and the magnetic carriers which forms magnetic ears on the surface of the developing roller. The magnetic toner is of an average particle size 0.01 μm through 0.50 μm and is of octahedron shape that is a convex polyhedron surrounded by eight triangles as a basis, each of the vertexes and edges of the octahedron shape toner being in a curved surface shape and having a portion that can be taken as a straight line on the outer periphery of a projected image of the octahedron shape toner. The magnetic ears are electrically charged by the friction between the magnetic toner and the magnetic carriers and the magnetic ears on the developing roller are carried to the electrostatic latent image on the photoreceptor. The latent image is developed by the magnetic toners in the magnetic ears, in a small gap between the developing roller and the photoreceptor. Due to the two component developer, the toner charges are rapidly induced and moreover the toners are not excessively charged.

摘要翻译： 双组分显影剂包括磁性调色剂和在显影辊表面上形成磁耳的磁性载体。 磁性调色剂的平均粒径为0.01μm至0.50μm，为八面体形状，是由八个三角形围绕的凸多面体的基础，八面体形状调色剂的顶点和边缘为曲面形状， 具有可以在八面体形状调色剂的投影图像的外周上被视为直线的部分。 磁性耳朵由磁性调色剂和磁性载体之间的摩擦带电，并且显影辊上的磁耳被承载在感光体上的静电潜像上。 潜影由磁性耳朵中的磁性调色剂在显影辊和感光体之间的小间隙中显影。 由于双组分显影剂，调色剂电荷迅速诱导，而且调色剂不会过度充电。

公开(公告)号：US20060141379A1

公开(公告)日：2006-06-29

申请号：US11288448

申请日：2005-11-29

申请人： Kouzou Teramoto ,  Yukinori Nakayama ,  Hiroshi Mizuhata ,  Kousuke Satou

发明人： Kouzou Teramoto ,  Yukinori Nakayama ,  Hiroshi Mizuhata ,  Kousuke Satou

IPC分类号： G03G9/083

CPC分类号： G03G9/0834 ,  G03G5/08214 ,  G03G5/08221 ,  G03G9/0833 ,  G03G9/0837 ,  G03G9/0838

摘要： Magnetic toner involves magnetic powder 1 having the particle shape of an octahedron2 that is a convex polyhedron surrounded by eight triangles as a basis, each of the vertexes and edges of the octahedron being in a curved surface shape, and having a portion 3 that can be taken as a straight line on the outer periphery of its projected image. Therefore, the magnetic toner is superior in both two contradictory properties, that is, the property of making it easy for a charging amount to quickly rise as well as improving the charging amount and the property of preventing dielectric breakdown of the photosensitive layer of the amorphous silicon photoreceptor from occurring within a short period due to charge-up, thereby making it possible to form a good image under a wide environment. In an image forming method, an electrostatic latent image is developed into a toner image by a magnetic one-component jumping developing method using the magnetic toner.

摘要翻译： 磁性调色剂涉及磁性粉末1，该磁性粉末1具有八面体2的颗粒形状，八面体2是由八个三角形包围的凸多面体作为基础，八面体的每个顶点和边缘呈弯曲表面形状，并且具有可以是 作为其投影图像的外周上的直线。 因此，磁性调色剂在两种相互矛盾的特性中都是优越的，即使充电量容易快速上升的特性以及提高充电量和防止非晶态感光层的电介质击穿的性质 硅感光体由于充电而在短时间内发生，从而可以在宽的环境下形成良好的图像。 在图像形成方法中，通过使用磁性调色剂的磁性单组分跳跃显影方法将静电潜像显影成调色剂图像。

公开(公告)号：US20060078813A1

公开(公告)日：2006-04-13

申请号：US11245489

申请日：2005-10-07

申请人： Yukinori Nakayama ,  Kouzou Teramoto ,  Hiroshi Mizuhata ,  Kousuke Satou

发明人： Yukinori Nakayama ,  Kouzou Teramoto ,  Hiroshi Mizuhata ,  Kousuke Satou

IPC分类号： G03G9/083

CPC分类号： G03G9/0839 ,  G03G9/081 ,  G03G9/0833 ,  G03G9/0834 ,  G03G9/0836 ,  G03G9/0837 ,  G03G9/0838

摘要： Magnetic toner involves magnetic powder 1 having the particle shape of an octahedron 2 that is a convex polyhedron surrounded by eight triangles as a basis, each of the vertexes and edges of the octahedron being in a curved surface shape, and having a portion 3 that can be taken as a straight line on the outer periphery of its projected image. Therefore, the magnetic toner is superior in both two contradictory properties, that is the property of making it easy for a charging amount to quickly rise as well as improving the charging amount and the property of making it difficult for charge-up to occur, thereby making it possible to form a good image under a wide environment. In an image forming method, an electrostatic latent image is developed into a toner image by a magnetic one-component jumping developing method using the magnetic toner.