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44 条记录 (耗时 0.026 秒)

    Toner and developer, and image forming apparatus, image forming method and process cartridge
    4.
    发明公开
    Toner and developer, and image forming apparatus, image forming method and process cartridge 有权
    Toner und Entwickler

    公开(公告)号：EP1925983A2

    公开(公告)日：2008-05-28

    申请号：EP07121216.1

    申请日：2007-11-21

    申请人： Ricoh Company, Ltd.

    发明人： Nakayama, Shinya ,  Kotsugai, Akihiro ,  Iwamoto, Yasuaki ,  Shitara, Yasutada ,  Watanabe, Yohichiroh

    IPC分类号： G03G9/08 ,  G03G9/087 ,  G03G9/10

    CPC分类号： G03G9/0819 ,  G03G9/08755 ,  G03G9/08797 ,  G03G9/1135 ,  G03G9/1136

    摘要： Provided is a toner that comprises a binder resin, a releasing agent, and a colorant, wherein the mass average particle diameter of the toner is 3 µm to 8 µm, the content of particles having a particle diameter of no more than 5 µm is from 60% by number to 90% by number, the binder resin comprises a polyester resin (A) having a softening temperature Tm(A) from no lower than 120°C to no higher than 160°C and a polyester resin (B) having a softening temperature Tm(B) from no lower than 80°C to lower than 120°C, and at least one of the polyester resins (A) and (B) is prepared by condensation polymerization between an alcohol component and a carboxylic acid component, and the alcohol component comprises divalent alcohol of 1,2-propanediol in a content of no less than 65% by mole and consists substantially of aliphatic alcohol; and also provided is a developer that comprises the toner and a carrier

    摘要翻译： 提供了包含粘合剂树脂，脱模剂和着色剂的调色剂，其中调色剂的质量平均粒径为3μm至8μm，粒径不大于5μm的颗粒的含量来自 60〜数量％〜90％的粘合剂树脂包含软化温度Tm（A）为120℃以上且160℃以下的聚酯树脂（A）和具有不低于160℃的聚酯树脂（B） 通过醇组分和羧酸组分之间的缩聚制备不低于80℃至低于120℃的软化温度Tm（B）和至少一种聚酯树脂（A）和（B） 醇组分包含不少于65摩尔％的1,2-丙二醇的二价醇，并且基本上由脂族醇组成; 并且还提供了包括调色剂和载体的显影剂

    Image forming apparatus, image forming method and process cartridge including a toner
    5.
    发明公开
    Image forming apparatus, image forming method and process cartridge including a toner 有权
    Bilderzeugungsvorrichtung，Bilderzeugungsverfahren und Prozesskartusche mit Toner

    公开(公告)号：EP1862864A1

    公开(公告)日：2007-12-05

    申请号：EP07109342.1

    申请日：2007-05-31

    申请人： Ricoh Company, Ltd.

    发明人： Watanabe, Yohichiroh ,  Iwamoto, Yasuaki ,  Shitara, Yasutada

    IPC分类号： G03G15/00 ,  G03G9/087 ,  G03G21/18

    CPC分类号： G03G15/00 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797

    摘要： To provide an image forming apparatus including a latent electrostatic image bearing member; a charging unit; an exposing unit; a developing unit; a transferring unit; and a fixing unit, wherein the binder resin of a toner comprises a polyester-based resin (A) and a polyester-based resin (B) having a melting point which is at least 10°C higher than that of the polyester-based resin (A), the polyester-based resins (A) is a resin which is derived from a (meth)acrylic acid-modified rosin and which has a polyester unit obtained by condensation polymerization of an alcohol component and a carboxylic acid component containing a (meth)aciylic acid-modified rosin, and the polyester-based resin (B) is a resin derived from a fumaric acid/maleic acid-modified rosin and has a polyester unit obtained by condensation polymerization of an alcohol component and a carboxylic acid component containing any one of a fumaric acid-modified rosin and a maleic acid-modified rosin.

    摘要翻译： 提供一种包括静电潜像承载部件的图像形成装置; 充电单元; 曝光单元; 一个发展单位; 转移单元; 和定影单元，其中调色剂的粘合剂树脂包括聚酯基树脂（A）和聚酯基树脂（B），其熔点比聚酯基树脂的熔点高至少10℃ （A）中，聚酯类树脂（A）是衍生自（甲基）丙烯酸改性松香的树脂，其具有通过醇成分和含有（甲基）丙烯酸改性松香的羧酸成分的羧酸成分缩聚得到的聚酯单元， 甲基）丙烯酸改性松香，聚酯类树脂（B）是来自富马酸/马来酸改性松香的树脂，具有通过醇成分和含有羧酸成分的羧酸成分缩聚得到的聚酯单元 任何一种富马酸改性松香和马来酸改性松香。

    Method and apparatus for producing toner
    8.
    发明公开
    Method and apparatus for producing toner 有权
    Verfahren und Vorrichtung zur Herstellung von Tonern

    公开(公告)号：EP2431811A2

    公开(公告)日：2012-03-21

    申请号：EP11181679.9

    申请日：2011-09-16

    申请人： Ricoh Company, Ltd.

    发明人： Makabe, Keiji ,  Watanabe, Yohichiroh ,  Masuda, Minoru ,  Shitara, Yasutada ,  Norikane, Yoshihiro

    IPC分类号： G03G9/08

    CPC分类号： G03G9/0806 ,  B01J2/04 ,  B01J2/18 ,  G03G9/0804

    摘要： An apparatus for producing a toner, including a liquid droplet-forming unit configured to discharge a toner composition liquid containing at least a resin and a colorant at a uniform discharge speed from a plurality of discharge holes some of which have different shapes from each other to thereby form liquid droplets, and a particle-forming unit configured to solidify the liquid droplets of the toner composition liquid to thereby form particles.

    摘要翻译： 一种调色剂的制造装置，包括：液滴形成单元，被配置为以均匀的排出速度将至少含有树脂和着色剂的调色剂组合物液体从多个排出孔排出，所述多个排出孔具有彼此不同的形状， 从而形成液滴，以及构造成使调色剂组合物液体的液滴固化从而形成颗粒的颗粒形成单元。