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36 条记录 (耗时 0.023 秒)

    TONER, DEVELOPER, AND IMAGE FORMING APPARATUS
    21.
    发明公开
    TONER, DEVELOPER, AND IMAGE FORMING APPARATUS 审中-公开
    墨粉，显影剂和图像形成装置

    公开(公告)号：EP2945017A1

    公开(公告)日：2015-11-18

    申请号：EP15166791.2

    申请日：2015-05-07

    申请人： Ricoh Company, Ltd.

    发明人： Takeyama, Akihiro ,  Nakayama, Shinya ,  Saitoh, Akinori ,  Nagai, Shinsuke ,  Takeda, Hiroyuki

    IPC分类号： G03G9/087 ,  G03G9/097 ,  G03G9/08

    摘要： A toner, wherein an amount of Al detected in the toner is 0.7% to 1.3%, where the amount of Al detected is determined based on quantitative analysis of Al by X-ray photoelectron spectroscopic analysis (XPS), and wherein [Tg2nd (THF insoluble matter)] is -40°C to 30°C, where the [Tg2nd (THF insoluble matter)] is a glass transition temperature measured in second heating of differential scanning calorimetry (DSC) of THF insoluble matter of the toner.

    摘要翻译： 一种调色剂，其中调色剂中检测到的Al的量为0.7％至1.3％，其中基于通过X射线光电子光谱分析（XPS）对Al的定量分析来确定检测到的Al的量，并且其中[Tg2nd（THF （Tg2nd（THF不溶物质）]是在调色剂的THF不溶物质的差示扫描量热测定（DSC）的第二次加热中测量的玻璃化转变温度。

    Toner, image forming apparatus, image forming method and process cartridge using the toner
    24.
    发明公开
    Toner, image forming apparatus, image forming method and process cartridge using the toner 有权
    Toner，Bilderzeugungsvorrichtung，Bilderzeugungsverfahren und den Toner verwendende Prozesskartusche

    公开(公告)号：EP1990683A2

    公开(公告)日：2008-11-12

    申请号：EP08155945.2

    申请日：2008-05-09

    申请人： Ricoh Company, Ltd.

    发明人： Nakayama, Shinya ,  Kotsugai, Akihiro ,  Sabu, Akiyoshi ,  Yamashita, Hiroshi ,  Yamada, Hiroshi ,  Awamura, Junichi ,  Sugimoto, Tsuyoshi

    IPC分类号： G03G9/087

    CPC分类号： G03G9/08755 ,  G03G9/08711 ,  G03G9/08775 ,  G03G9/08786 ,  G03G9/08795 ,  G03G9/08797

    摘要： A toner containing at least a binder resin, a releasing agent, and a colorant, wherein the binder resin contains at least a polyester resin (A) having a softening point Tm (A) of 120°C to 160°C, a polyester resin (B) having a softening point Tm (B) of 80°C or more and less than 120°C and a composite resin (C) containing a condensation polymerization monomer and an addition polymerization monomer, at least any one of the polyester resins (A) and (B) is a polyester resin prepared by condensation-polymerizing an alcohol component substantially composed of only aliphatic alcohol with a carboxylic acid component, and 65% or more of the alcohol component is 1,2-propanediol.

    摘要翻译： 含有至少粘合剂树脂，脱模剂和着色剂的调色剂，其中粘合剂树脂至少含有软化点Tm（A）为120℃至160℃的聚酯树脂（A），聚酯树脂 （B）为80℃以上且低于120℃的软化点（B）和含有缩聚单体和加成聚合单体的复合树脂（C），至少任一种聚酯树脂（ A）和（B）是通过将基本上仅由脂肪醇组成的醇成分与羧酸成分进行缩聚而制得的聚酯树脂，65％以上的醇成分是1,2-丙二醇。

    Toner and developer, and image forming apparatus, image forming method and process cartridge
    25.
    发明公开
    Toner and developer, and image forming apparatus, image forming method and process cartridge 有权
    调色剂和显影剂，图像形成装置，图像形成方法和处理盒

    公开(公告)号：EP1925983A3

    公开(公告)日：2008-09-03

    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

    Toner, image forming apparatus using the same, image forming method using the same, and process cartridge
    26.
    发明公开
    Toner, image forming apparatus using the same, image forming method using the same, and process cartridge 有权
    调色剂，使用其的成像装置，使用该成像装置的成像方法以及处理盒

    公开(公告)号：EP1925982A2

    公开(公告)日：2008-05-28

    申请号：EP07121212.0

    申请日：2007-11-21

    申请人： Ricoh Company, Ltd.

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

    IPC分类号： G03G9/08 ,  G03G9/097

    CPC分类号： G03G9/09783 ,  G03G9/0823 ,  G03G9/08755 ,  G03G9/08775 ,  G03G9/08795 ,  G03G9/08797

    摘要： A toner that is excellent in low-temperature fixing property, offset resistance, storage stability, charge rising property, charge stability with time and pulverizability and allows for forming high-quality images over a long period of time The toner contains at least a binder resin, a colorant and a charge controlling agent, wherein the charge controlling agent contains an aromatic oxycarboxylic acid metal compound having a trivalent or more central metal, the binder resin comprises a polyester resin (A) having a softening point Tm (A) of 120°C to 160°C and a polyester resin (B) having a softening point Tm (B) of 80°C to less than 120°C, and at least any one of the polyester resins (A) and (B) contains 1,2-propane diol at 65 mol% or more in a divalent alcohol component and can be obtained by condensation polymerizing an alcohol component substantially composed of only an aliphatic alcohol with a carboxylic acid component,

    摘要翻译： 低温定影性，耐反印性，保存稳定性，电荷上升性，经时充电稳定性和粉化性优异并且允许长时间形成高质量图像的调色剂。调色剂至少含有粘合剂树脂 ，着色剂和电荷控制剂，其中电荷控制剂含有具有三价或更多中心金属的芳族含氧羧酸金属化合物，粘合剂树脂包括软化点Tm（A）为120°的聚酯树脂（A） （B）为80℃以上且小于120℃的聚酯树脂（B），聚酯树脂（A）和（B）中的至少任一种含有1〜 在二元醇成分中为65摩尔％以上的2-丙二醇，可以通过使实质上仅由脂肪族醇构成的醇成分与羧酸成分缩聚而得到，

    IMAGE FORMING APPARATUS
    29.
    发明授权
    IMAGE FORMING APPARATUS 有权

    公开(公告)号：EP1857888B1

    公开(公告)日：2018-01-17

    申请号：EP07108265.5

    申请日：2007-05-15

    申请人： Ricoh Company, Ltd.

    发明人： Sawai, Yuuji ,  Nakayama, Shinya

    IPC分类号： G03G15/16 ,  G03G15/01

    CPC分类号： G03G15/0131 ,  G03G15/162 ,  G03G2215/0119 ,  G03G2215/1614

    摘要： An image forming apparatus includes an image carrier (40), an endless belt (10) whose front surface moves endlessly and contacts the image carrier to form a transfer nip, and a bias applying roller (62) configured to apply a transfer bias to a back surface of the endless belt. An image is formed of a toner having an additive embedded rate of not less than 40 percent. The toner includes a mother particle having a binder resin and a colorant, and an external additive. The bias applying roller (62) is located so as to satisfy a relationship, L > (A/2)+(B/2)+C, where A is a diameter of the image carrier (40), B is a diameter of the bias applying roller (62), C is a thickness of the endless belt (10), and L is a distance between centers of the image carrier and the bias applying roller, on a virtual plane perpendicular to an axis direction of the image carrier.