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    Toner, developer, developer container, method of manufacturing toner, and image forming method
    1.
    发明公开
    Toner, developer, developer container, method of manufacturing toner, and image forming method 有权
    Toner，Entwicklerbehälter，Verfahren zur Tonerherstellung und Bilderzeugungsverfahren

    公开(公告)号：EP2328033A1

    公开(公告)日：2011-06-01

    申请号：EP10192960.2

    申请日：2010-11-29

    申请人： Ricoh Company Ltd.

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

    IPC分类号： G03G9/08 ,  G03G9/087

    CPC分类号： G03G9/0806 ,  G03G9/0819 ,  G03G9/08755 ,  G03G9/08768 ,  G03G9/08782 ,  G03G9/08797

    摘要： A toner including a binder resin comprising a modified polyester having an ester bond and a chemical bond other than the ester bond, and a crystalline polyester; and a release agent comprising a microcrystalline wax comprising a hydrocarbon having 20 to 80 carbon atoms which comprises 55 to 70 % by weight of a linear hydrocarbon. The microcrystalline wax has an acid value of from 0.1 to 20 mgKOH/g and a melting point of from 65 to 90°C. The melting point is a temperature at which a local maximum endothermic peak is observed in a differential thermal curve measured by differential scanning calorimetry (DSC). The release agent is dispersed in the toner with a dispersion diameter of from 0.06 to 1.50 µm.

    摘要翻译： 包含具有酯键和除了酯键以外的化学键的改性聚酯的粘合剂树脂的调色剂和结晶性聚酯; 和包含含有碳原子数为20〜80的烃的微晶蜡的脱模剂，其包含55〜70重量％的直链烃。 微晶蜡的酸值为0.1〜20mgKOH / g，熔点为65〜90℃。 熔点是通过差示扫描量热法（DSC）测量的差热热曲线中观察到局部最大吸热峰的温度。 脱模剂分散在分散体直径为0.06至1.50μm的调色剂中。

    Image forming apparatus and process cartridge
    4.
    发明公开
    Image forming apparatus and process cartridge 有权
    成像设备和处理盒

    公开(公告)号：EP2261746A2

    公开(公告)日：2010-12-15

    申请号：EP10182141.1

    申请日：2005-09-16

    申请人： Ricoh Company Ltd.

    发明人： Hasegawa, Kumi ,  Aoki, Mitsuo ,  Shu, Hyo ,  Masuda, Minoru ,  Utsumi, Tomoko

    IPC分类号： G03G9/08 ,  G03G9/087 ,  G03G9/097 ,  G03G15/00 ,  G03G21/00

    CPC分类号： G03G9/00 ,  G03G9/0806 ,  G03G9/0821 ,  G03G9/0823 ,  G03G9/08782 ,  G03G9/09708 ,  G03G9/09733 ,  G03G15/0855 ,  G03G15/0865 ,  G03G15/0879

    摘要： An image forming apparatus comprising: a latent electrostatic image bearing member; a charging unit configured to uniformly charge a surface of the image bearing member; an exposing unit configured to form a latent electrostatic image on the surface of the charged image bearing member; a developing unit configured to develop the latent electrostatic image formed on the surface of the image bearing member by supplying a toner to form a visible image; a transferring unit configured to transfer the visible image formed on the surface of the image bearing member to a recording medium; a fixing unit configured to fix the visible image on the recording medium by application of at least one of heat and pressure; a cleaning unit configured to clean a residual toner on the image bearing member; and a toner replenishing device configured to replenish the toner to the developing unit, wherein the toner is replenished by the toner replenishing device comprising a pump configured to supply the toner and a toner container arranged in conjunction with the pump, and wherein the toner comprises a binder resin, a colorant and a releasing agent and has a dynamic friction coefficient of 0.15 to 0.35.

    摘要翻译： 一种图像形成设备，包括：静电潜像承载部件; 充电单元，被配置为均匀地充电图像承载部件的表面; 曝光单元，被配置为在带电图像承载部件的表面上形成静电潜像; 显影单元，其被配置为通过供应调色剂来形成在图像承载部件的表面上形成的静电潜像以形成可见图像; 转印单元，被配置为将形成在图像承载部件的表面上的可见图像转印到记录介质; 定影单元，被配置为通过施加热量和压力中的至少一种来将可见图像定影在记录介质上; 清洁单元，其构造成清洁图像承载构件上的残留调色剂; 以及调色剂补给装置，其构造成将调色剂补充到显影单元，其中调色剂补充装置包括构造成供给调色剂的泵和与泵联合布置的调色剂容器，并且其中调色剂包括 粘合剂树脂，着色剂和脱模剂，动摩擦系数为0.15〜0.35。

    Electrophotographic image forming method and apparatus
    5.
    发明公开
    Electrophotographic image forming method and apparatus 有权
    电子照相成像方法和设备

    公开(公告)号：EP2065757A1

    公开(公告)日：2009-06-03

    申请号：EP07121966.1

    申请日：2007-11-30

    申请人： Ricoh Company, Ltd.

    发明人： Shitara, Yasutada ,  Masuda, Minoru ,  Iwamoto, Yasuaki ,  Shu, Hyo

    IPC分类号： G03G9/087 ,  G03G15/20 ,  G03G15/00 ,  G03G11/00

    CPC分类号： G03G9/08782 ,  G03G9/08755 ,  G03G9/08795 ,  G03G11/00 ,  G03G15/2025

    摘要： An image forming method including electrostatic image forming step, developing step, transferring step, fixing step and oil application step for applying an oil to a fixing member, wherein the toner includes a binder resin, a colorant and a wax, and the relationship (A2/A1) x 100 1.0 atomic percent, and X2 > 1.0 atomic percent, are satisfied, wherein X1 and X2 represent amounts of Si atoms of the silicone oil measured by subjecting the toner image to X-ray photoelectron spectroscopy at times 5 minutes and 24 hours, respectively, after fixing the toner image.

    摘要翻译： 一种图像形成方法，其包括静电图像形成步骤，显影步骤，转印步骤，定影步骤和用于将油施加到定影部件的油施加步骤，其中所述调色剂包含粘合剂树脂，着色剂和蜡，并且关系式（A2 / A1）×100 <200，其中A1表示在滴油后30秒测量的滴落在墨粉颗粒上的油的面积，A2表示落下油后24小时测量的落下油的面积。 或者，满足关系（X1-X2）<0.5原子百分比，X1> 1.0原子百分比和X2> 1.0原子百分比，其中X1和X2表示通过对调色剂图像进行测量而测量的硅油的Si原子的量 在定影调色剂图像之后，分别在5分钟和24小时的时间进行X射线光电子能谱分析。