公开(公告)号：US5534982A

公开(公告)日：1996-07-09

申请号：US205107

申请日：1994-03-03

申请人： Katsuhiro Sakaizawa ,  Motoo Urawa ,  Tsutomu Kukimoto ,  Satoshi Yoshida

发明人： Katsuhiro Sakaizawa ,  Motoo Urawa ,  Tsutomu Kukimoto ,  Satoshi Yoshida

IPC分类号： G03G9/08 ,  G03G15/06 ,  G03B21/00 ,  G03B15/06

CPC分类号： G03G9/0823 ,  G03G15/065

摘要： A developing apparatus includes a developer carrying member for opposing to an image bearing member bearing an electrostatic image, and for carrying a developer to develop the electrostatic image on the image bearing member, the developer having a polarity which is the same as a charging polarity of the image bearing member, and a bias voltage source for applying an oscillating bias voltage to the developer carrying member. The bias voltage oscillates interposing an image portion potential of the image bearing member, and an absolute value of a peak level of a background portion side potential is smaller than an absolute value of a background portion potential.

摘要翻译： 显影装置包括显影剂承载构件，用于与承载静电图像的图像承载构件相对，并且用于承载显影剂以使图像承载构件上的静电图像显影，显影剂具有与充电极性相同的极性 图像承载部件和用于向显影剂承载部件施加振荡偏压的偏置电压源。 偏置电压使图像承载部件的图像部分电位发生振荡，背景部分侧电位的峰值电平的绝对值小于背景部分电位的绝对值。

公开(公告)号：US5774771A

公开(公告)日：1998-06-30

申请号：US599375

申请日：1996-02-09

申请人： Tsutomu Kukimoto ,  Motoo Urawa ,  Kenji Okado ,  Toshiyuki Ugai ,  Keita Nozawa ,  Satoshi Yoshida ,  Yuki Karaki

发明人： Tsutomu Kukimoto ,  Motoo Urawa ,  Kenji Okado ,  Toshiyuki Ugai ,  Keita Nozawa ,  Satoshi Yoshida ,  Yuki Karaki

IPC分类号： G03G9/08 ,  G03G9/09 ,  G03G9/097 ,  G03G15/08 ,  G03G15/14

CPC分类号： G03G9/0827 ,  G03G9/08 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/0825 ,  G03G9/09 ,  G03G9/09716

摘要： An image forming method has a developing step of developing an electrostatic latent image by the use of a developer to form a toner image on an electrostatic latent image bearing member, a primary transfer step of transferring the toner image onto an intermediate transfer member to which a voltage is applied, and a secondary transfer step of transferring onto a transfer medium the toner image held on the intermediate transfer member, while a transfer means to which a voltage is applied is pressed against the transfer medium. The developer has a toner. The toner is a black toner having at least i) black toner particles formed of a binder resin with a colorant dispersed therein and ii) an inorganic fine powder. The black toner has the value of shape factor SF-1 of 110

摘要翻译： 图像形成方法具有通过使用显影剂使静电潜像显影以在静电潜像承载部件上形成调色剂图像的显影步骤，将调色剂图像转印到中间转印部件上的一次转印步骤， 施加电压，以及二次转印步骤，在将施加有电压的转印装置压在转印介质上的同时，转印到转印介质上，保持在中间转印部件上的调色剂图像。 显影剂有一个墨粉。 调色剂是具有至少i）由分散有着色剂的粘合剂树脂形成的黑色调色剂颗粒和ii）无机细粉末的黑色调色剂。 黑色调色剂的形状因子SF-1的值为110

公开(公告)号：US5618647A

公开(公告)日：1997-04-08

申请号：US520558

申请日：1995-08-28

申请人： Tsutomu Kukimoto ,  Yasuhide Goseki ,  Motoo Urawa ,  Masayoshi Shimamura ,  Keiji Okano ,  Keita Nozawa ,  Satoshi Yoshida ,  Masaki Ojima

发明人： Tsutomu Kukimoto ,  Yasuhide Goseki ,  Motoo Urawa ,  Masayoshi Shimamura ,  Keiji Okano ,  Keita Nozawa ,  Satoshi Yoshida ,  Masaki Ojima

IPC分类号： G03G9/08 ,  G03G9/097 ,  G03G9/083

CPC分类号： G03G9/09716 ,  G03G9/0819 ,  G03G9/0821

摘要： A magnetic toner has magnetic toner particles containing a binder resin and a magnetic material, and an inorganic fine powder treated with an organic compound. The magnetic toner has a volume average particle diameter D.sub.v (.mu.m) of 3 .mu.m.ltoreq.D.sub.v

摘要翻译： 磁性调色剂具有含有粘合剂树脂和磁性材料的磁性调色剂颗粒和用有机化合物处理的无机细粉末。 磁性调色剂的体积平均粒径Dv（μm）为3μm，Dv <6μm，重均粒径D4（μm）为3.5μmD4 =6.5μm， 磁性调色剂的粒径分布为5μm以下的粒径为5μm以下的粒子的百分数Mr％为Mr％，数量为60％，颗粒与粒子的比率为Nr 磁性调色剂的粒径分布为3.17μm或更小，磁性调色剂的体积粒度分布为3.17μm或更小的粒子的Nv为2.0至8.0，Nv / Nv 。

公开(公告)号：US5915150A

公开(公告)日：1999-06-22

申请号：US803506

申请日：1997-02-20

申请人： Tsutomu Kukimoto ,  Motoo Urawa ,  Shuichi Aita ,  Satoshi Yoshida

发明人： Tsutomu Kukimoto ,  Motoo Urawa ,  Shuichi Aita ,  Satoshi Yoshida

IPC分类号： G03G9/08 ,  G03G9/097 ,  G03G13/08 ,  G03G21/00 ,  G03G15/30

CPC分类号： G03G13/08 ,  G03G21/0064 ,  G03G9/0819 ,  G03G9/0827 ,  G03G9/097 ,  G03G2215/0617 ,  G03G2215/1614 ,  G03G2221/0005 ,  G03G9/0825

摘要： An electrophotographic image forming method according to (I) a so-called simultaneous development and cleaning scheme or cleaner-less scheme is effectively operated by using a specific non-magnetic toner. (II) The non-magnetic toner comprises non-magnetic toner particles having a shape factor SF-1 of 120-160, a shape factor SF-2 of 115-140 and a weight-average particle size of 4-9 .mu.m. (III) The non-magnetic toner further includes inorganic fine particles (a) having a number-average primary particle size of at most 50 nm and spherical fine particles (b) having a number-average primary particle size of 50-1000 nm and a surface area-based sphericity .psi. of 0.91-1.00, respectively externally added to the non-magnetic toner particles.

摘要翻译： 通过使用特定的非磁性调色剂有效地操作根据（I）所谓的同时显影和清洁方案或无清洁方案的电摄影图像形成方法。 （II）非磁性调色剂包括形状因子SF-1为120-160，形状因子SF-2为115-140，重均粒径为4-9μm的非磁性调色剂颗粒。 （III）非磁性调色剂还包括数均一次粒径为50nm以下的无机微粒（a）和数均一次粒径为50〜1000nm的球状微粒（b）， 分别外部添加到非磁性调色剂颗粒上的基于表面积的球形度psi为0.91-1.00。

公开(公告)号：US5731122A

公开(公告)日：1998-03-24

申请号：US555341

申请日：1995-11-08

申请人： Satoshi Yoshida ,  Motoo Urawa ,  Shuichi Aita ,  Tsutomu Kukimoto ,  Yoshifumi Hano ,  Yuki Nishio

发明人： Satoshi Yoshida ,  Motoo Urawa ,  Shuichi Aita ,  Tsutomu Kukimoto ,  Yoshifumi Hano ,  Yuki Nishio

IPC分类号： G03G5/05 ,  G03G5/147 ,  G03G9/08 ,  G03G21/00 ,  G03G13/16

CPC分类号： G03G5/14726 ,  G03G21/0064 ,  G03G5/0503 ,  G03G5/0539 ,  G03G9/0819 ,  G03G2221/0005

摘要： An image forming method and image forming apparatus for charging a photosensitive member, exposing the charged photosensitive member thereby forming an electrostatic latent image, carrying toner with a toner carrying member to bring the toner into contact with the photosensitive member surface, thereby developing the electrostatic latent image and forming a toner image upon the photosensitive member, transferring the toner image that is on the photosensitive member to transfer material such as paper, and conducting a simultaneous developing-cleaning process which recovers residual toner remaining on the photosensitive member following the transfer process, so that toner consumption is greatly reduced and high image quality is maintained at the same time. The angle of contact of the photosensitive member surface to water is 85.degree. or greater, the toner is comprised of at least toner particles possessing binder resin and coloring agent, and an inorganic fine powder, and the toner has an average particle diameter by volume DV (.mu.m) of 3 .mu.m.ltoreq.DV.ltoreq.8 .mu.m, an average particle diameter by weight D4 (.mu.m) of 3.5 .mu.m.ltoreq.D4.ltoreq.9 .mu.m, and the ratio Nr of particles having a particle diameter smaller than 5 .mu.m in particle diameter distribution by number of 17% by number.ltoreq.Nr.ltoreq.90% by number.

摘要翻译： 一种图像形成方法和图像形成装置，用于对感光构件充电，使带电的感光构件曝光，从而形成静电潜像，带有调色剂承载构件的调色剂，使调色剂与感光构件表面接触，从而显影静电潜像 在感光构件上形成调色剂图像，转印感光构件上的调色剂图像以转印诸如纸的材料，并且进行同时显影清洁处理，其恢复在转印过程之后残留在感光构件上的残留调色剂， 使得墨粉消耗量大大降低，同时保持高图像质量。 感光构件表面与水的接触角为85度以上，调色剂至少包含具有粘合剂树脂和着色剂的调色剂颗粒和无机细粉末，调色剂具有平均粒径（体积）DV （μm），平均颗粒直径D4（μm）为3.5μm，D4

公开(公告)号：US5712070A

公开(公告)日：1998-01-27

申请号：US597876

申请日：1996-02-07

申请人： Keita Nozawa ,  Motoo Urawa ,  Osamu Tamura ,  Tsutomu Kukimoto

发明人： Keita Nozawa ,  Motoo Urawa ,  Osamu Tamura ,  Tsutomu Kukimoto

IPC分类号： G03G9/08 ,  G03G9/083

CPC分类号： G03G9/0821 ,  G03G9/0819 ,  G03G9/0834

摘要： A toner for developing electrostatic images is constituted by toner particles comprising a binder resin and a colorant. The toner is characterized by having (i) a particle size distribution including a weight-average particle size D.sub.4 of X .mu.m and Y% by number of toner particles having a particle size of at most 3.17 .mu.m satisfying the following conditions (1) and (2): -5X+35.ltoreq.Y.ltoreq.-25X+180 (1) 3.5.ltoreq.X.ltoreq.6.5 (2), (ii) at least one heat absorption peak in a temperature region of at most 110.degree. C. as measured by differential thermal analysis, and (iii) a tap void of 0.45-0.70. The toner is effective for obviating the sleeve ghost phenomenon.

摘要翻译： 用于显影静电图像的调色剂由包含粘合剂树脂和着色剂的调色剂颗粒构成。 调色剂的特征在于：（i）包括重均粒径D4为Xμm的颗粒尺寸分布，以及颗粒尺寸至多为3.17μm的调色剂颗粒数量Y％满足以下条件（1） 和（2）： - 5X + 35

公开(公告)号：US5715501A

公开(公告)日：1998-02-03

申请号：US770408

申请日：1997-01-22

申请人： Shuichi Aita ,  Toshiyuki Yoshihara ,  Motoo Urawa ,  Tsutomu Kukimoto ,  Yoshifumi Hano

发明人： Shuichi Aita ,  Toshiyuki Yoshihara ,  Motoo Urawa ,  Tsutomu Kukimoto ,  Yoshifumi Hano

IPC分类号： G03G5/00 ,  G03G5/147 ,  G03G9/08 ,  G03G9/097 ,  G03G13/08 ,  G03G15/00

CPC分类号： G03G15/75 ,  G03G13/08 ,  G03G5/005 ,  G03G5/14726 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/0823 ,  G03G9/09708 ,  G03G2221/183

摘要： An image forming method includes forming an electrostatic latent image on an image bearing member having a surface of which contact angle with water is at least 90.degree., forming a toner layer on a toner carrying member, bringing the toner layer into contact with the surface of the image bearing member on which the electrostatic latent image has been formed, while rotating the image bearing member and the toner carrying member reciprocally, and developing the electrostatic latent image by the use of the toner of the toner layer to form a toner image.

摘要翻译： 图像形成方法包括在具有与水的接触角至少为90°的表面的图像承载部件上形成静电潜像，在调色剂承载部件上形成调色剂层，使调色剂层与 图像承载部件，其上形成有静电潜像，同时使图像承载部件和调色剂承载部件往复地旋转，并且通过使用调色剂层的调色剂使静电潜像显影以形成调色剂图像。

公开(公告)号：US4518672A

公开(公告)日：1985-05-21

申请号：US494866

申请日：1983-05-16

申请人： Motoo Urawa ,  Eiichi Imai

发明人： Motoo Urawa ,  Eiichi Imai

IPC分类号： G03G9/08 ,  G03G9/09 ,  G03G15/01 ,  G03G9/10

CPC分类号： G03G9/0918

摘要： A cyan color toner for developing electrostatic images was provided which comprises a compound respresented by the general formula shown below in the resin and which has excellent spectral reflection characteristics. ##STR1## where X.sub.1, X.sub.2, X.sub.3 and X.sub.4 are ##STR2## or --H, but are not simultaneously hydrogen, and R and R' are alkylene group of carbon number of from 1 to 5.

摘要翻译： 提供了用于显影静电图像的青色调色剂，其包含在树脂中由下列通式表示的化合物，并且具有优异的光谱反射特性。 其中X1，X2，X3和X4为“IMAGE”或“-H”，但不能同时为氢，R和R'为碳原子数为1至5的亚烷基。

公开(公告)号：US5071727A

公开(公告)日：1991-12-10

申请号：US552859

申请日：1990-07-11

申请人： Takeshi Ikeda ,  Eiichi Imai ,  Hiroshi Fukumoto ,  Katsuhiko Tanaka ,  Koshi Suematsu ,  Motoo Urawa ,  Masanori Takenouchi

发明人： Takeshi Ikeda ,  Eiichi Imai ,  Hiroshi Fukumoto ,  Katsuhiko Tanaka ,  Koshi Suematsu ,  Motoo Urawa ,  Masanori Takenouchi

IPC分类号： G03G9/097 ,  G03G15/08

CPC分类号： G03G9/09775 ,  G03G15/0812 ,  G03G15/0818 ,  G03G9/097 ,  G03G9/09783 ,  Y10S430/146

摘要： A triboelectrically chargeable composition for use in development of electrostatic latent images. The composition comprises a positively chargeable compound and a base material carrying the positively chargeable compound. The positively chargeable compound has an oxidation potential of 750 mV or below, a whiteness W of 0.5 or above and an average particle size of 5.0 microns or smaller. The composition is embodied typically as a positively chargeable toner and also as a charge-imparting material for charging a toner. The positively chargeable toner is especially adapted for development of digital latent images, e.g., as produced by laser beam scanning.

摘要翻译： 用于静电潜像显影的摩擦电荷充电组合物。 该组合物包含带正电荷的化合物和携带可带正电的化合物的基体材料。 正电荷化合物的氧化电位为750mV以下，白度W为0.5以上，平均粒径为5.0μm以下。 该组合物通常体现为可充正电的调色剂，并且还作为用于带电调色剂的电荷赋予材料。 可充正电的调色剂特别适用于数字潜像的开发，例如通过激光束扫描产生的。

公开(公告)号：US4590139A

公开(公告)日：1986-05-20

申请号：US789348

申请日：1985-10-21

申请人： Eiichi Imai ,  Motoo Urawa

发明人： Eiichi Imai ,  Motoo Urawa

IPC分类号： G03G5/12 ,  G03G9/09 ,  G03G13/01 ,  G03G9/08

CPC分类号： G03G9/091 ,  G03G5/12 ,  G03G9/0908 ,  G03G9/0914 ,  G03G9/0918

摘要： By combination of a resin exhibiting a melt viscosity of 10.sup.5 cp at a temperature of T.sub.1 and a melt viscosity of 0.5.times.10.sup.5 cp at a temperature of T.sub.2, said temperatures satisfying the following relationships:T.sub.1 =100.degree.-150.degree. C., and .vertline..DELTA.T.vertline.=.vertline.T.sub.1 -T.sub.2 .vertline.=5.degree.-30.degree. C., and at least one of yellow, magenta and cyan colorants having specific structures, a color toner for electrostatic copying excellent in overlapping characteristic, spectral reflection characteristic, transparency, charging characteristic, durability, etc. can be obtained.

摘要翻译： 通过在T1的温度下表现出105cp的熔融粘度和在温度为T2的熔融粘度为0.5×105cp的树脂的组合，所述温度满足以下关系：T1 = 100-150℃， DELTA T| = | T1-T2 | = 5°-30℃，以及具有特定结构的黄色，品红色和青色着色剂中的至少一种，用于静电复印的彩色调色剂，重叠特性优异，光谱反射特性，透明度， 充电特性，耐久性等。