公开(公告)号：US06242146B1

公开(公告)日：2001-06-05

申请号：US09499454

申请日：2000-02-07

申请人： Yuka Ishihara ,  Hiroshi Nakazawa ,  Akihiro Iizuka ,  Yoshifumi Iida ,  Kaori Oishi ,  Tomohito Nakajima ,  Takashi Imai ,  Masanori Ichimura

发明人： Yuka Ishihara ,  Hiroshi Nakazawa ,  Akihiro Iizuka ,  Yoshifumi Iida ,  Kaori Oishi ,  Tomohito Nakajima ,  Takashi Imai ,  Masanori Ichimura

IPC分类号： G03G9113

CPC分类号： G03G9/10

摘要： A carrier for two-component electrostatic-charged image developer, at least the surface of which is coated with a resin, is provided. The apparent density &rgr; (g/cm3) of the carrier, the mean particle diameter D (cm) of the carrier, and the specific area S (cm2/g) of the carrier core material satisfy the following conditions: 600≦S≦1500 10/(D×&rgr;)−S≦300. A two-component developer and an image-forming process using the carrier are also provided.

摘要翻译： 提供了至少其表面涂覆有树脂的双组分静电电荷显影剂载体。 载体的表观密度rho（g / cm 3），载体的平均粒径D（cm）和载体芯材的比表面积S（cm 2 / g）满足以下条件：双组分显影剂 并且还提供使用该载体的图像形成处理。

公开(公告)号：US6101358A

公开(公告)日：2000-08-08

申请号：US418826

申请日：1999-10-15

申请人： Takashi Imai ,  Akihiro Iizuka ,  Yoshifumi Iida ,  Hiroshi Nakazawa ,  Masanori Ichimura

发明人： Takashi Imai ,  Akihiro Iizuka ,  Yoshifumi Iida ,  Hiroshi Nakazawa ,  Masanori Ichimura

IPC分类号： G03G15/09 ,  G03G9/08 ,  G03G9/10 ,  G03G9/107 ,  G03G13/09 ,  G03G15/08

CPC分类号： G03G9/107 ,  G03G13/09 ,  G03G9/08 ,  G03G9/10

摘要： Provided is an image-forming method including a step of forming a layer of a developer on a surface of a developer support member disposed facing a latent image support member, a developing step of developing an electrostatic latent image on the latent image support member using the layer of the developer formed to obtain a toner image, a transferring step of transferring the toner image onto a transfer material and a fixing step of fixing the transferred toner image, wherein the developer support member has therein a development magnetic pole in which a magnetic force of a main pole is 100 mT or more, said developer having a toner and a carrier which has a volume average particle diameter of 50 .mu.m or less, and image formation method is conducted at a process speed of 200 mm/sec or more.In the image-forming method of the invention, high-quality images free from blurring in a half-tone portion adjacent to a solid image can be formed in a high-speed image-forming process using the two-component developer of a small particle diameter without migration of the carrier into the latent image.

摘要翻译： 提供了一种图像形成方法，包括在面向潜像支撑部件设置的显影剂支撑部件的表面上形成显影剂层的步骤，使用该显影步骤使潜像支撑部件上的静电潜像显影 形成以获得调色剂图像的显影剂层，将调色剂图像转印到转印材料上的转印步骤和固定转印的调色剂图像的定影步骤，其中显影剂支撑构件中具有显影磁极，其中磁力 所述显影剂具有体积平均粒径为50μm以下的调色剂和载体，以200mm / sec以上的处理速度进行图像形成方法。 在本发明的图像形成方法中，可以在使用小粒子的双组分显影剂的高速图像形成处理中形成没有与实心图像相邻的半色调部分中的模糊的高质量图像 直径，而不会使载体迁移到潜像中。

公开(公告)号：US6096466A

公开(公告)日：2000-08-01

申请号：US244127

申请日：1999-02-04

申请人： Takashi Imai ,  Akihiro Iizuka ,  Yoshifumi Iida ,  Masanori Ichimura

发明人： Takashi Imai ,  Akihiro Iizuka ,  Yoshifumi Iida ,  Masanori Ichimura

IPC分类号： G03G9/08 ,  G03G9/10 ,  G03G9/107 ,  G03G9/113 ,  G03G13/09 ,  G03G15/08

CPC分类号： G03G13/09 ,  G03G9/10 ,  G03G9/107 ,  G03G9/1139 ,  G03G2215/0177

摘要： A developer for replenishment for use in a developing system in which a latent image on a latent image holding member is developed with a developing unit containing a two-component developer comprising a toner and a carrier while replenishing the developer with a developer for replenishment, the developer for replenishment comprising a carrier and from 1 to 30 parts by weight of a toner per 1 part by weight of the carrier, and the developer for replenishment having an electrical resistance substantially equal to that of the carrier previously contained in the developing unit, but giving a larger charge quantity to the toner than the carrier previously contained in the developing unit does. Also disclosed is a developing method using the developer for replenishment.

摘要翻译： 一种用于补充显影剂的显影剂，其中潜像保持部件上的潜像用显影单元显影，所述显影单元含有包含调色剂和载体的双组分显影剂，同时用用于补充的显影剂补充显影剂， 用于补充的显影剂，其包含载体和每1重量份载体1至30重量份的调色剂，并且用于补充的显影剂具有基本上等于显影单元中预先包含的载体的电阻，但是 相对于先前容纳在显影单元中的载体​​，赋予调色剂更大的电荷量。 还公开了一种使用显影剂进行补充的开发方法。

公开(公告)号：US6001527A

公开(公告)日：1999-12-14

申请号：US995221

申请日：1997-12-19

申请人： Yuka Ishihara ,  Masanori Ichimura ,  Takashi Imai ,  Hiroshi Takano ,  Hiroshi Nakazawa ,  Yoshifumi Iida ,  Susumu Yoshino

发明人： Yuka Ishihara ,  Masanori Ichimura ,  Takashi Imai ,  Hiroshi Takano ,  Hiroshi Nakazawa ,  Yoshifumi Iida ,  Susumu Yoshino

IPC分类号： G03G9/08 ,  G03G9/087 ,  G03G9/09 ,  G03G9/097 ,  G03G9/113 ,  G03G15/08

CPC分类号： G03G9/09716 ,  G03G9/0819 ,  G03G9/08755 ,  G03G9/09725 ,  G03G9/113

摘要： The present invention provides an electrostatic image developer comprising a toner and a carrier wherein the toner includes toner particles having an average particle diameter of 3 to 9 .mu.m, a hydrophobic silica microparticles having a BET specific surface area of 40 to 120 m.sup.2 /g, and a hydrophobic titanium compound microparticles having a BET specific surface area of 40 to 250 m.sup.2 /g; and wherein the carrier is a resin coated carrier having a coating layer of a resin. The electrostatic image developer can improve the environmental dependency of charging, power fluidity, resistance to caking of a toner and reduced change in charging with time course to provide an image with an excellent image quality for a long period of time.

摘要翻译： 本发明提供一种包含调色剂和载体的静电图像显影剂，其中调色剂包括平均粒径为3至9μm的调色剂颗粒，BET比表面积为40至120m 2 / g的疏水性二氧化硅微粒， 和BET比表面积为40〜250m 2 / g的疏水钛化合物微粒; 并且其中所述载体是具有树脂涂层的树脂涂布载体。 静电图像显影剂可以改善充电的环境依赖性，功率流动性，抵抗调色剂的结块和随时间变化的充电变化，以长时间提供具有优异图像质量的图像。

公开(公告)号：US5884129A

公开(公告)日：1999-03-16

申请号：US863914

申请日：1997-05-27

申请人： Masanori Ichimura ,  Michio Take ,  Hidekazu Yaguchi ,  Masaki Hashimoto ,  Takashi Imai ,  Hiroshi Takano ,  Masahiro Takagi ,  Akihiro Iizuka ,  Yuka Ishihara

发明人： Masanori Ichimura ,  Michio Take ,  Hidekazu Yaguchi ,  Masaki Hashimoto ,  Takashi Imai ,  Hiroshi Takano ,  Masahiro Takagi ,  Akihiro Iizuka ,  Yuka Ishihara

IPC分类号： G03G9/08 ,  G03G9/087 ,  G03G9/09 ,  G03G9/10 ,  G03G13/08 ,  G03G15/08 ,  G03G15/09

CPC分类号： G03G9/0821 ,  G03G13/08 ,  G03G9/0904 ,  G03G9/10

摘要： An electrostatic-image developer which comprises: (i) a toner comprising: (a) toner particles containing carbon black in an amount of from 6 to 8% by weight based on the weight of the toner particles and having a volume-average particle diameter of from 3 to 9 .mu.m; and (b) an external additive; and (ii) a resin-coated carrier having a volume resistivity of from 10.sup.7 to 10.sup.11 .OMEGA..multidot.cm in an electric field of 10.sup.3.8 V/cm and an average particle diameter of from 30 to 60 .mu.m. Also disclosed are a process for forming a black image and a process for forming a full-color image each using the electrostatic-image developer.

摘要翻译： 一种静电图像显影剂，其包括：（i）调色剂，其包含：（a）基于调色剂颗粒的重量，含有6至8重量％的碳黑的调色剂颗粒，并且具有体积平均粒径 3〜9亩; 和（b）外部添加剂; 和（ii）电场为103.8V / cm，平均粒径为30〜60μm的体积电阻率为107〜1011欧米伽×厘米的树脂被覆载体。 还公开了一种用于形成黑色图像的过程和用于形成使用静电图像显影剂的全色图像的处理。

公开(公告)号：US5296324A

公开(公告)日：1994-03-22

申请号：US877733

申请日：1992-05-04

申请人： Hideyuki Akagi ,  Susumu Saito ,  Masaru Miura ,  Takashi Imai ,  Masayuki Takei ,  Masanori Ichimura ,  Michio Take ,  Satoshi Inoue ,  Yasuo Yamamoto ,  Toshiaki Murofushi ,  Hiroshi Nakazawa ,  Koji Fukushima

发明人： Hideyuki Akagi ,  Susumu Saito ,  Masaru Miura ,  Takashi Imai ,  Masayuki Takei ,  Masanori Ichimura ,  Michio Take ,  Satoshi Inoue ,  Yasuo Yamamoto ,  Toshiaki Murofushi ,  Hiroshi Nakazawa ,  Koji Fukushima

IPC分类号： G03G9/08

CPC分类号： G03G9/0808 ,  G03G9/0827

摘要： A toner for developing an electrostatic charge image is disclosed, which is formed by adding and mixing an external additive with toner particles having an average particle size of not larger than 9 .mu.m and comprising at least a colorant and a binder resin, wherein the external additive is fine particles having a particle size of 20 to 80 nm. There is also disclosed a process for preparing the toner which comprises adding external additives to the toner particles and mixing them, wherein the addition and mixing of said external additive are carried out under specific conditions.

摘要翻译： 公开了一种用于显影静电荷图像的调色剂，其通过将外部添加剂与平均粒度不大于9（my）m并且至少包含着色剂和粘合剂树脂的调色剂颗粒相加和混合而形成，其中 外部添加剂是粒径为20〜80nm的细颗粒。 还公开了一种调色剂的制备方法，其包括向调色剂颗粒中加入外部添加剂并进行混合，其中所述外部添加剂的添加和混合在特定条件下进行。

公开(公告)号：US06582869B2

公开(公告)日：2003-06-24

申请号：US09818864

申请日：2001-03-28

申请人： Katsumi Daimon ,  Norihito Fukushima ,  Takashi Imai ,  Manabu Serizawa ,  Hirokazu Hamano ,  Masanori Ichimura

发明人： Katsumi Daimon ,  Norihito Fukushima ,  Takashi Imai ,  Manabu Serizawa ,  Hirokazu Hamano ,  Masanori Ichimura

IPC分类号： G03G9087

CPC分类号： G03G9/08755 ,  G03G9/08771 ,  G03G9/08795 ,  G03G9/08797

摘要： An electrophotographic toner contains a colorant and a binder resin which includes and a crystalline polyester resin as a main component. An ester density M of the crystalline polyester resin, as defined in the following Formula 1, is from 0.01 to 0.12: M=K/A  Formula 1 wherein M denotes an ester density, K denotes a number of ester groups, and A denotes a number of atoms which constitute the high molecular chain of a polymer.

摘要翻译： 电子照相调色剂含有着色剂和粘合剂树脂，其包含结晶性聚酯树脂作为主要成分。 如下式1所定义的结晶性聚酯树脂的酯密度M为0.01〜0.12，式中，M表示酯密度，K表示酯基数，A表示构成高分子数的原子数 聚合物的分子链。

公开(公告)号：US06500594B2

公开(公告)日：2002-12-31

申请号：US09978031

申请日：2001-10-17

申请人： Hirokazu Hamano ,  Katsumi Daimon ,  Manabu Serizawa ,  Norihito Fukushima ,  Takashi Imai ,  Masanori Ichimura

发明人： Hirokazu Hamano ,  Katsumi Daimon ,  Manabu Serizawa ,  Norihito Fukushima ,  Takashi Imai ,  Masanori Ichimura

IPC分类号： G03G9113

CPC分类号： G03G9/08797 ,  G03G9/08755 ,  G03G9/10 ,  G03G9/1135

摘要： An electrophotographic developer and a process for forming an image are provided in that the fixing can be conducted at a lower temperature than the conventional technique, and that are excellent in the powder storage stability, the anti-blocking property and the image storage stability after fixing without impairing the density, the coloring property and the transparency of the image after fixing, and further have appropriate electric charging property without any problem of fogging or cloud with excellent maintenance property of electric charge. The electrophotographic developer contains a toner for developing an electrostatic image containing a coloring agent and a binder resin containing, as a main component, a crystalline resin having a melting point of about from 60 to 120° C., and a carrier having a resin film containing a nitrogen-containing resin on a surface thereof. The process for forming an image is carried out by using the electrophotographic developer.

摘要翻译： 提供电子照相显影剂和形成图像的方法，其中可以在比常规技术更低的温度下进行定影，并且在固定之后粉末储存稳定性，防粘连性和图像保存稳定性优异 而不损害固定后的图像的密度，着色性和透明度，并且进一步具有适当的充电性能，没有任何雾化或云状的问题，并且具有优异的电荷维持性。 电子照相显影剂含有用于显影含有着色剂和粘合剂树脂的静电图像的调色剂，所述着色剂和粘合剂树脂含有熔点为约60至120℃的结晶树脂和作为主要成分的结晶树脂，并且具有树脂膜 在其表面含有含氮树脂。 形成图像的方法是通过使用电子照相显影剂进行的。

公开(公告)号：US5665511A

公开(公告)日：1997-09-09

申请号：US471729

申请日：1995-06-06

申请人： Takashi Imai ,  Satoshi Inoue ,  Masanori Ichimura ,  Yutaka Sugizaki ,  Susumu Saito ,  Masaru Miura ,  Michio Take ,  Yasuo Yamamoto ,  Koji Fukushima ,  Manabu Serizawa

发明人： Takashi Imai ,  Satoshi Inoue ,  Masanori Ichimura ,  Yutaka Sugizaki ,  Susumu Saito ,  Masaru Miura ,  Michio Take ,  Yasuo Yamamoto ,  Koji Fukushima ,  Manabu Serizawa

IPC分类号： C09K3/00 ,  C09K3/16 ,  C09K3/18 ,  G03G9/08 ,  G03G9/097

CPC分类号： G03G9/09708 ,  G03G9/09716 ,  Y10S430/104

摘要： A surface-treated inorganic fine particle includes an inorganic fine particle, a hydrophobizing agent deposited on the surface of the inorganic fine particle and an amino group-containing coupling agent deposited on the surface of the inorganic fine particle, wherein the hydrophobizing agent and the amino group-containing coupling agent in a ratio of 1/(0.01 to 0.1) by weight are deposited on the surface of the inorganic fine particle by treating the surface of the inorganic fine particle with the hydrophobizing agent and the amino group-containing coupling agent. An electrophotographic developer contains toner particles and the surface-treated inorganic fine particles.

摘要翻译： 表面处理无机细颗粒包括无机细颗粒，沉积在无机细颗粒表面上的疏水化剂和沉积在无机细颗粒表面上的含氨基偶联剂，其中疏水化剂和氨基 通过用疏水化剂和含氨基的偶联剂处理无机细颗粒的表面，将1 /（0.01至0.1）重量比的含基团的偶联剂沉积在无机细颗粒的表面上。 电子照相显影剂含有调色剂颗粒和表面处理的无机细颗粒。

公开(公告)号：US5529871A

公开(公告)日：1996-06-25

申请号：US276488

申请日：1994-07-18

申请人： Masanori Ichimura ,  Hiroshi Takayama ,  Michio Take ,  Hideyuki Akagi ,  Takashi Imai ,  Satoshi Inoue ,  Yasuo Yamamoto ,  Yutaka Sugizaki ,  Koji Fukushima ,  Masayuki Takei ,  Masaru Miura

发明人： Masanori Ichimura ,  Hiroshi Takayama ,  Michio Take ,  Hideyuki Akagi ,  Takashi Imai ,  Satoshi Inoue ,  Yasuo Yamamoto ,  Yutaka Sugizaki ,  Koji Fukushima ,  Masayuki Takei ,  Masaru Miura

IPC分类号： G03G9/08 ,  G03G9/09 ,  G03G9/00

CPC分类号： G03G9/0804 ,  G03G9/081 ,  G03G9/09 ,  G03G9/0906

摘要： A color toner providing a toner image excellent in brightness, clearness and graininess and a process for producing the same are disclosed, wherein a proportion of dispersed pigment particles having a circle-equivalent diameter of 0.3 .mu.m or greater does not exceed 0.1% of the total number of said dispersed pigment particles. The process comprises kneading a water-containing pigment paste and a binder resin at a temperature of 100.degree. C. or higher under pressure in a heat and pressure kneader to remove a water content to obtain a pigment dispersion, melt-kneading the resulting pigment dispersion together with a binder resin, and grinding the mixture.

摘要翻译： 本发明提供一种提供亮度，清晰度和颗粒度优异的调色剂图像的彩色调色剂，其中，当量圆直径为0.3μm以上的分散颜料颗粒的比例不超过0.1μm 所述分散的颜料颗粒的总数。 该方法包括在100℃或更高的温度下在加压和捏合机中捏合含水颜料糊和粘合剂树脂以除去水分，得到颜料分散体，将得到的颜料分散体 与粘合剂树脂一起研磨混合物。