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11 条记录 (耗时 0.018 秒)

    Toner and developer
    4.
    发明公开
    Toner and developer 有权
    Toner und Entwickler

    公开(公告)号：EP2365393A1

    公开(公告)日：2011-09-14

    申请号：EP11157501.5

    申请日：2011-03-09

    申请人： Ricoh Company, Ltd.

    发明人： Sugimoto, Tsuyoshi ,  Sasaki, Fumihiro ,  Yamashita, Hiroshi ,  Ogawa, Satoshi ,  Awamura, Junichi ,  Shu, Hyo ,  Suzuki, Tomomi ,  Kusahara, Teruki ,  Inoue, Ryota ,  Inoue, Daisuke

    IPC分类号： G03G9/08 ,  G03G9/087

    CPC分类号： G03G9/0804 ,  G03G9/0821 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797

    摘要： A toner comprising a colorant, a crystalline polyester resin, and an amorphous polyester resin, in which the crystalline polyester resin satisfies the following relations: 60 ≤ T ⁢ 2 - cp 80 T ⁢ 2 - cs ⁢ 2 - T ⁢ 2 - cp 10 T ⁢ 2 - cp - T ⁢ 2 - cs ⁢ 1 10
    wherein (T2-cp) (°C) represents an endothermic peak temperature, (T2-cs1) (°C) represents a first endothermic shoulder temperature, and (T2-cs2) (°C) represents a second endothermic shoulder temperature, each determined from a second heating in a differential scanning calorimetry.

    摘要翻译： 包含着色剂，结晶聚酯树脂和非晶聚酯树脂的调色剂，其中结晶性聚酯树脂满足以下关系：60‰¤¢¢2 - cp <80 T ¢2 - cs ¢2 - T （T2-cp）（℃）（℃）表示吸热峰温度（T2-cs1）（℃）（℃）（℃）（℃） 表示第一吸热肩温度，（T2-cs2）（℃）表示第二吸热肩温度，各自由差示扫描量热法中的第二次加热确定。

    NIP FORMER, FIXING DEVICE, AND IMAGE FORMING APPARATUS
    6.
    发明公开
    NIP FORMER, FIXING DEVICE, AND IMAGE FORMING APPARATUS 审中-公开

    公开(公告)号：EP4155830A1

    公开(公告)日：2023-03-29

    申请号：EP22192341.0

    申请日：2022-08-26

    申请人： Ricoh Company, Ltd.

    发明人： Kabata, Toshiyuki ,  Yamaguchi, Yoshiki ,  Seto, Takashi ,  Yoshinaga, Hiroshi ,  Yamashita, Kentaro ,  Inoue, Daisuke

    IPC分类号： G03G15/20

    摘要： A nip former (27; 27S) that forms a nip (N) between an endless belt (21; 121) and a pressure rotator (22) includes a base (27a) that is made of aluminum and has a nip forming face (27c) disposed opposite the nip (N). An anodic oxidation coating (27b; 27bS) is treated with sealing and coats at least the nip forming face (27c). The anodic oxidation coating (27b; 27bS) has a thickness that is not smaller than 22 µm and is not greater than 45 µm and a variation in thickness that is not greater than 20 percent. The base (27a) and the anodic oxidation coating (27b; 27bS) define a nip forming portion (27d; 27dS) that is disposed opposite the nip (N). The nip forming portion (27d; 27dS) has a thickness that is not smaller than 0.40 mm and is not greater than 1.20 mm.

    Toner, two-component developer, and image forming apparatus
    10.
    发明公开
    Toner, two-component developer, and image forming apparatus 有权
    Toner，Zweikomponenten-Entwickler und Bilderzeugungsvorrichtung

    公开(公告)号：EP2639642A1

    公开(公告)日：2013-09-18

    申请号：EP13158739.6

    申请日：2013-03-12

    申请人： Ricoh Company, Ltd.

    发明人： Kojima, Satoshi ,  Nagatomo, Tsuneyasu ,  Satoh, Syouko ,  Uchinokura, Osamu ,  Awamura, Junichi ,  Ogawa, Satoshi ,  Honda, Takahiro ,  Ito, Daisuke ,  Kusahara, Teruki ,  Watanabe, Masaki ,  Inoue, Daisuke

    IPC分类号： G03G9/097

    CPC分类号： G03G9/0825 ,  G03G9/097 ,  G03G9/09708

    摘要： A toner including: toner base particles; and external additive, the toner base particles each comprising binder resin and colorant, wherein the external additive comprises coalesced particles, the coalesced particles are each a non-spherical secondary particle in which primary particles are coalesced together, and an index of a particle size distribution of the coalesced particles is expressed by Formula (1): Db 50 Db 10 ≦ 1.20 where, in a distribution diagram where particle diameters in nm of the coalesced particles are on horizontal axis and cumulative percentages in % by number of the coalesced particles are on vertical axis and in which the coalesced particles are accumulated from those having smaller particle diameters to those having larger particle diameters, Db 50 denotes a particle diameter of the coalesced particle at which the cumulative percentage is 50% by number, and Db 10 denotes a particle diameter of the coalesced particle at which the cumulative percentage is 10% by number.

    摘要翻译： 一种调色剂，包括：调色剂基础颗粒; 和外部添加剂，每个包含粘合剂树脂和着色剂的调色剂基础颗粒，其中外部添加剂包括聚结颗粒，聚结颗粒各自是一次颗粒聚结在一起的非球形二次颗粒，并且粒度分布指数 的聚结粒子由式（1）表示：Db 50 Db 10‰| 1.20其中，在聚结粒子的粒径在水平轴上的累积百分比（以％表示的聚结粒子的数量）的分布图中， 在垂直轴上并且其中聚结的颗粒从具有较小粒径的聚结颗粒聚集到具有较大颗粒直径的粒子的数量，Db 50表示累积百分比为50数量％的聚结颗粒的粒径，Db 10表示 累积百分比为10％的聚结颗粒的粒径。