公开(公告)号：US06544704B1

公开(公告)日：2003-04-08

申请号：US10231252

申请日：2002-08-30

申请人： Hiroaki Matsuda ,  Masanori Suzuki ,  Akemi Sugiyama ,  Hiroto Higuchi ,  Tsunemi Sugiyama ,  Fumihiro Sasaki ,  Yasuaki Iwamoto ,  Hiroshi Nakai ,  Kumi Hasegawa

发明人： Hiroaki Matsuda ,  Masanori Suzuki ,  Akemi Sugiyama ,  Hiroto Higuchi ,  Tsunemi Sugiyama ,  Fumihiro Sasaki ,  Yasuaki Iwamoto ,  Hiroshi Nakai ,  Kumi Hasegawa

IPC分类号： G03G9087

CPC分类号： G03G9/08795 ,  G03G9/107

摘要： A two-component developer comprises a toner which contains at least a resin and a colorant and to which an external additive is added, and a carrier. The toner has a number average molecular weight (Mn) not greater than 3,000 and contains particles having a molecular weight not greater than 1,000 in an amount not less than 40 number %. The carrier satisfies the relation 3,000,000≦&sgr;1000×Dc3≦20,000,00  (1) where &sgr;1000 represents a magnetization (emu/g) of the carrier at 1,000 oersted, and Dc represents a volume average particle diameter (&mgr;m) of the carrier.

摘要翻译： 双组分显影剂包括至少包含树脂和着色剂并且添加有外部添加剂的调色剂和载体。 调色剂的数均分子量（Mn）不大于3,000，并且含有不小于40数量％的分子量不大于1,000的颗粒。 载体满足关系，其中σ1000表示载体在1,000奥斯特的磁化强度（emu / g），Dc表示载体的体积平均粒径（mum）。

公开(公告)号：US06468706B2

公开(公告)日：2002-10-22

申请号：US09862436

申请日：2001-05-23

申请人： Hiroaki Matsuda ,  Masanori Suzuki ,  Akemi Sugiyama ,  Hiroto Higuchi ,  Tsunemi Sugiyama ,  Fumihiro Sasaki ,  Yasuaki Iwamoto ,  Hiroshi Nakai ,  Kumi Hasegawa

发明人： Hiroaki Matsuda ,  Masanori Suzuki ,  Akemi Sugiyama ,  Hiroto Higuchi ,  Tsunemi Sugiyama ,  Fumihiro Sasaki ,  Yasuaki Iwamoto ,  Hiroshi Nakai ,  Kumi Hasegawa

IPC分类号： G03G9087

CPC分类号： G03G9/08795 ,  G03G9/107

摘要： A two-component developer consists of a toner, which contains at least a resin and a colorant and to which an external additive is added, and a carrier. This two-component developer has the toner that has a number average molecular weight (Mn) of 3,000 or less and contains particles having a molecular weight of 1,000 or less at 40 number % or more, and also has the carrier that satisfies general formula (1) as follows: 3,000,000≦&sgr;1000×Dc3≦20,000,000  (1) where &sgr;1000 represents a magnetization (emu/g) of a carrier at 1,000 oersted, and Dc represents volume average particle diameter (&mgr;m) of the carrier.

摘要翻译： 双组分显影剂由包含至少一种树脂和着色剂并且加入外部添加剂的调色剂和载体组成。 该双组分显影剂具有数均分子量（Mn）为3000以下的调色剂，并且含有分子量为1,000以下的分子量在40数量％以上的颗粒，并且还具有满足通式（ 1）如下：其中sigma1000表示在1000奥斯特的载体的磁化强度（emu / g），Dc表示载体的体积平均粒径（mum）。

公开(公告)号：US07029816B2

公开(公告)日：2006-04-18

申请号：US10871009

申请日：2004-06-21

申请人： Fumihiro Sasaki ,  Mitsuo Aoki ,  Yasuaki Iwamoto ,  Naohito Shimota ,  Kazuyuki Yazaki ,  Hiroaki Matsuda ,  Hiroshi Nakai ,  Kumi Hasegawa ,  Shinichiro Yagi ,  Hiroto Higuchi ,  Akemi Sugiyama

发明人： Fumihiro Sasaki ,  Mitsuo Aoki ,  Yasuaki Iwamoto ,  Naohito Shimota ,  Kazuyuki Yazaki ,  Hiroaki Matsuda ,  Hiroshi Nakai ,  Kumi Hasegawa ,  Shinichiro Yagi ,  Hiroto Higuchi ,  Akemi Sugiyama

IPC分类号： G03G15/16

CPC分类号： G03G5/005 ,  G03G9/0827 ,  G03G13/16

摘要： An image formation method includes the steps of charging the surface of an electrophotographic photoconductor, exposing the charged photoconductor to a light image to form a latent electrostatic image on the photoconductor, developing the latent electrostatic image using a two-component developer containing a toner and a carrier to obtain a toner image, and transferring the toner image to an image receiving material directly or via an intermediate transfer member, with the photoconductor showing a surface friction coefficient of 0.40 or less, and the toner having toner particles with an average circularity of 0.930 or more.

摘要翻译： 图像形成方法包括以下步骤：对电子照相感光体的表面进行充电，将带电的感光体暴露于光图像以在感光体上形成静电潜像，使用含有调色剂的双组分显影剂和 载体以获得调色剂图像，并且将调色剂图像直接或经由中间转印部件转印到图像接收材料上，其中光电导体的表面摩擦系数为0.40或更小，并且调色剂具有平均圆形度为0.930的调色剂颗粒 或者更多。

公开(公告)号：US06667141B2

公开(公告)日：2003-12-23

申请号：US10077752

申请日：2002-02-20

申请人： Yasuaki Iwamoto ,  Fumihiro Sasaki ,  Hiroaki Matsuda ,  Hiroshi Nakai ,  Hiroto Higuchi ,  Bing Shu ,  Maiko Kondo

发明人： Yasuaki Iwamoto ,  Fumihiro Sasaki ,  Hiroaki Matsuda ,  Hiroshi Nakai ,  Hiroto Higuchi ,  Bing Shu ,  Maiko Kondo

IPC分类号： G03G1316

CPC分类号： G03G9/0821 ,  G03G9/0819 ,  G03G9/08795 ,  G03G13/025 ,  G03G2215/021

摘要： An image forming method and apparatus, wherein a surface of a photoconductor is charged with a contact-type charging roller having a surface roughness of 2-40 &mgr;m, and exposed imagewise to form an electrostatic latent image thereon, the latent image being developed with a toner, transferred to a transfer member and fixed, and wherein the toner comprises a colorant, and a binder resin containing a tetrahydrofuran-soluble component having such a molecular weight distribution that at least one peak having a half width not greater than 15,000 is present between 1,000 and 10,000 when measured by gel permeation chromatography.

公开(公告)号：US06911289B2

公开(公告)日：2005-06-28

申请号：US09965826

申请日：2001-10-01

申请人： Hiroto Higuchi ,  Fumihiro Sasaki ,  Yasuaki Iwamoto ,  Hiroshi Nakai ,  Bing Shu ,  Hiroaki Matsuda ,  Maiko Kondo

发明人： Hiroto Higuchi ,  Fumihiro Sasaki ,  Yasuaki Iwamoto ,  Hiroshi Nakai ,  Bing Shu ,  Hiroaki Matsuda ,  Maiko Kondo

IPC分类号： G03G9/08 ,  G03G9/083 ,  G03G9/087 ,  G03G9/097 ,  G03G9/10 ,  G03G15/08 ,  G03G15/20

CPC分类号： G03G9/08782 ,  G03G9/0808

摘要： A toner including toner particles including a binder resin and a release agent, wherein when the toner is molded into a plate upon application of a pressure of 478 kg/cm2, the toner plate has a surface having a coefficient of static friction of from 0.20 to 0.40. An image forming apparatus including an image bearing member, an image developer to form a toner image on the image bearing member, an image transferer configured to transfer the toner image on a receiving material and a fixer configured to fix the toner image thereon, wherein the apparatus has a waiting time not longer than 15 seconds, and a maximum power consumption not greater than 1.5 KW and 30 W in an image forming state and in a standby state, respectively, wherein the toner is the toner mentioned above.

摘要翻译： 包括调色剂颗粒的调色剂包括粘合剂树脂和脱模剂，其中当施加478kg / cm 2压力的调色剂成型为板时，调色剂板具有表面具有 静摩擦系数为0.20〜0.40。 一种图像形成装置，包括图像承载部件，图像显影剂，以在图像承载部件上形成调色剂图像;图像转印器，被配置为将调色剂图像转印在接收材料上;以及定影剂，其被配置为将调色剂图像固定在其上， 设备具有不超过15秒的等待时间，在图像形成状态和待机状态下的最大功耗不大于1.5KW和30W，其中调色剂是上述调色剂。

公开(公告)号：US06811944B2

公开(公告)日：2004-11-02

申请号：US10786549

申请日：2004-02-26

申请人： Hiroto Higuchi ,  Fumihiro Sasaki ,  Yasuaki Iwamoto ,  Hiroshi Nakai ,  Bing Shu ,  Hiroaki Matsuda ,  Maiko Kondo

发明人： Hiroto Higuchi ,  Fumihiro Sasaki ,  Yasuaki Iwamoto ,  Hiroshi Nakai ,  Bing Shu ,  Hiroaki Matsuda ,  Maiko Kondo

IPC分类号： G03G1520

CPC分类号： G03G9/08782 ,  G03G9/0808

摘要： A toner including toner particles including a binder resin and a release agent, wherein when the toner is molded into a plate upon application of a pressure of 478 kg/cm2, the toner plate has a surface having a coefficient of static friction of from 0.20 to 0.40. An image forming apparatus including an image bearing member, an image developer to form a toner image on the image bearing member, an image transferer configured to transfer the toner image on a receiving material and a fixer configured to fix the toner image thereon, wherein the apparatus has a waiting time not longer than 15 seconds, and a maximum power consumption not greater than 1.5 KW and 30 W in an image forming state and in a standby state, respectively, wherein the toner is the toner mentioned above.

公开(公告)号：US06699632B2

公开(公告)日：2004-03-02

申请号：US09996585

申请日：2001-11-30

申请人： Hiroto Higuchi ,  Fumihiro Sasaki ,  Yasuaki Iwamoto ,  Hiroaki Matsuda ,  Hiroshi Nakai ,  Bing Shu ,  Maiko Kondo

发明人： Hiroto Higuchi ,  Fumihiro Sasaki ,  Yasuaki Iwamoto ,  Hiroaki Matsuda ,  Hiroshi Nakai ,  Bing Shu ,  Maiko Kondo

IPC分类号： G03G908

CPC分类号： G03G15/5004 ,  G03G9/0819 ,  G03G9/0827 ,  G03G9/08795 ,  G03G13/20 ,  G03G2215/2016 ,  G03G2215/2032 ,  G03G2215/2038 ,  G03G2215/2041

摘要： An image forming toner is provided, including at least: a binder resin; a colorant; and a release agent, wherein a volume-average particle diameter of the toner measured by a Coulter counter is from 5 to 8 &mgr;m; the content of the toner having a volume-average particle diameter of not greater than 5 &mgr;m is 60 to 75% by number; and the content of the toner having a number-basis circle-equivalent particle diameter of from 0.6 to 3 &mgr;m measured by a flow-type particle image analyzer is not greater than 25%.

摘要翻译： 提供一种图像形成调色剂，至少包括：粘合剂树脂; 着色剂 和脱模剂，其中由库尔特计数器测量的调色剂的体积平均粒径为5至8μm; 体积平均粒径为5μm以下的调色剂的含量为60〜75数量％ 并且通过流动型粒子图像分析仪测量的数量基圆当量粒径为0.6〜3μm的调色剂的含量不大于25％。

公开(公告)号：US06813461B2

公开(公告)日：2004-11-02

申请号：US10786548

申请日：2004-02-26

申请人： Hiroto Higuchi ,  Fumihiro Sasaki ,  Yasuaki Iwamoto ,  Hiroshi Nakai ,  Bing Shu ,  Hiroaki Matsuda ,  Maiko Kondo

发明人： Hiroto Higuchi ,  Fumihiro Sasaki ,  Yasuaki Iwamoto ,  Hiroshi Nakai ,  Bing Shu ,  Hiroaki Matsuda ,  Maiko Kondo

IPC分类号： G03G1508

CPC分类号： G03G9/08782 ,  G03G9/0808

摘要： A toner including toner particles including a binder resin and a release agent, wherein when the toner is molded into a plate upon application of a pressure of 478 kg/cm2, the toner plate has a surface having a coefficient of static friction of from 0.20 to 0.40. An image forming apparatus including an image bearing member, an image developer to form a toner image on the image bearing member, an image transferer configured to transfer the toner image on a receiving material and a fixer configured to fix the toner image thereon, wherein the apparatus has a waiting time not longer than 15 seconds, and a maximum power consumption not greater than 1.5 KW and 30 W in an image forming state and in a standby state, respectively, wherein the toner is the toner mentioned above.

摘要翻译： 一种调色剂，包括包含粘合剂树脂和脱模剂的调色剂颗粒，其中当施加478kg / cm 2的压力将调色剂模塑成板时，调色剂板具有具有静态摩擦系数 从0.20到0.40。 一种图像形成装置，包括图像承载部件，图像显影剂，以在图像承载部件上形成调色剂图像;图像转印器，被配置为将调色剂图像转印在接收材料上;以及定影器，其被配置为将调色剂图像固定在其上， 设备具有不超过15秒的等待时间，在图像形成状态和待机状态下的最大功耗不大于1.5KW和30W，其中调色剂是上述调色剂。

公开(公告)号：US06593048B2

公开(公告)日：2003-07-15

申请号：US09982877

申请日：2001-10-22

申请人： Fumihiro Sasaki ,  Yasuaki Iwamoto ,  Hiroaki Matsuda ,  Hiroshi Nakai ,  Hiroto Higuchi ,  Hyou Shu ,  Maiko Kondo

发明人： Fumihiro Sasaki ,  Yasuaki Iwamoto ,  Hiroaki Matsuda ,  Hiroshi Nakai ,  Hiroto Higuchi ,  Hyou Shu ,  Maiko Kondo

IPC分类号： G03G9083

CPC分类号： G03G9/1075 ,  G03G9/083 ,  G03G9/0834 ,  G03G9/0835 ,  G03G9/0837 ,  G03G9/0839 ,  G03G9/0904 ,  G03G9/113 ,  G03G9/1131 ,  G03G9/1139

摘要： A two-component developer includes at least a magnetic toner and a magnetic carrier. The magnetic toner has magnetic particles coated with a carbon black layer. The magnetic toner adheres to the magnetic carrier due to the magnetic interaction.

摘要翻译： 双组分显影剂至少包括磁性调色剂和磁性载体。 磁性调色剂具有涂覆有炭黑层的磁性颗粒。 由于磁性相互作用，磁性调色剂粘附到磁性载体上。

公开(公告)号：US06856781B2

公开(公告)日：2005-02-15

申请号：US10077813

申请日：2002-02-20

申请人： Hiroaki Matsuda ,  Yasuaki Iwamoto ,  Hiroshi Nakai ,  Hiroto Higuchi ,  Bing Shu ,  Maiko Kondo ,  Fumihiro Sasaki

发明人： Hiroaki Matsuda ,  Yasuaki Iwamoto ,  Hiroshi Nakai ,  Hiroto Higuchi ,  Bing Shu ,  Maiko Kondo ,  Fumihiro Sasaki

IPC分类号： G03G9/087 ,  G03G9/08 ,  G03G9/113 ,  G03G13/09 ,  G03G15/08

CPC分类号： G03G9/0819 ,  G03G13/09

摘要： An image forming apparatus including a photoconductor, and a developing unit having a developing sleeve for carrying a developer and a developer regulating plate for regulating the amount of the developer carried on the sleeve, wherein the developer is composed of a carrier and a toner, wherein that portion of the toner which has a particle diameter of 2.0-4.0 μm accounts for 30-70% of a total number thereof, and wherein the developer regulating plate is grounded so that when the developing sleeve is applied with a bias voltage, an electric field is formed between the developer regulating plate and the developing sleeve, whereby toner deposits on the developing sleeve are transferred to the developer regulating plate.

摘要翻译： 包括光电导体的图像形成装置和具有用于承载显影剂的显影套筒和用于调节承载在套筒上的显影剂的量的显影剂调节板的显影单元，其中显影剂由载体和调色剂组成，其中 粒径为2.0-4.0μm的调色剂的部分占其总数的30-70％，其中显影剂调节板接地，当显影套筒施加偏压时，电 在显影剂调节板和显影套筒之间形成一个场，由此显影套筒上的调色剂沉积物被转印到显影剂调节板上。