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37 条记录 (耗时 0.036 秒)

    Electrophotographic image forming method and apparatus
    1.
    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。

    Toner and developer, and image forming apparatus, image forming method and process cartridge
    2.
    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
    3.
    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, image forming method and process cartridge
    4.
    发明公开
    Image forming apparatus, image forming method and process cartridge 有权
    Bilderzeugungsverfahren

    公开(公告)号：EP1847883A1

    公开(公告)日：2007-10-24

    申请号：EP07106584.1

    申请日：2007-04-20

    申请人： Ricoh Company, Ltd.

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

    IPC分类号： G03G9/087

    CPC分类号： G03G9/08755 ,  G03G9/08775 ,  G03G9/08786 ,  G03G9/08791 ,  G03G15/2064 ,  G03G2215/0602 ,  G03G2215/2032

    摘要： Provided are image forming apparatuses, image forming methods, and process cartridges using a toner that is excellent in low temperature fixing ability, hot offset resistance, and storage stability, and also generate less odor, and thus that can provide high quality images with superior fixing ability, far from tone change with time, and less likely to occur abnormal images such as density-drop and background smear. The image forming apparatuses comprise a latent electrostatic image bearing member, a charging unit, an exposing unit, a developing unit, a transfer unit, and a fixing unit, wherein the toner comprises a binder resin and a colorant, the binder resin comprises a polyester resin prepared by condensation polymerization between an alcohol component that contains an aliphatic polyvalent alcohol and a carboxylic acid component that contains (meth)acrylic acid-modified rosin.

    摘要翻译： 提供了使用具有优异的低温定影能力，耐热粘合性和储存稳定性的调色剂的图像形成装置，图像形成方法和处理盒，并且还产生较少的气味，因此可以提供具有优异固定性的高质量图像 能力，远离音调随时间变化，并且不太可能发生异常图像，如密度下降和背景涂片。 图像形成装置包括静电潜像承载部件，充电单元，曝光单元，显影单元，转印单元和定影单元，其中调色剂包括粘合剂树脂和着色剂，粘合剂树脂包括聚酯 通过在含有脂肪族多元醇的醇成分和含有（甲基）丙烯酸改性松香的羧酸成分之间进行缩聚而制备的树脂。

    Image forming apparatus, toner, and process cartridge
    10.
    发明公开
    Image forming apparatus, toner, and process cartridge 有权
    Bilderzeugungsvorrichtung，Toner und Prozesskartusche

    公开(公告)号：EP2068199A1

    公开(公告)日：2009-06-10

    申请号：EP07122245.9

    申请日：2007-12-04

    申请人： Ricoh Company, Ltd.

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

    IPC分类号： G03G9/087 ,  G03G9/097

    CPC分类号： G03G9/08755 ,  G03G9/08782 ,  G03G9/08795 ,  G03G9/08797 ,  G03G15/2025

    摘要： An image forming apparatus including a fixing device to fix a toner image on a recording medium including a heat roller and an oil applicator to apply a silicone oil to the heat roller, having a system speed of from 500 to 1700 mm/sec, and using a toner including a binder resin including a crystalline polyester resin and an amorphous polyester resin; a fatty acid amide compound; and a colorant, wherein the ratio (W/R) of the height (W) of a peak at a wavenumber of 1638 cm -1 specific for the fatty acid amide compound, to the height (R) of a peak at a wavenumber of 829 cm -1 , specific for the amorphous polyester resin, is from 0.010 to 0.040 in an absorption spectrum obtained by an ATR method (total reflectance method) using a Courier transformation infrared (FT-IR) spectrophotometer.

    摘要翻译： 一种图像形成装置，包括固定装置，用于将调色剂图像定影在包括加热辊和油涂布器的记录介质上，以将硅油施加到加热辊上，系统速度为500至1700mm /秒，并且使用 包含结晶聚酯树脂和无定形聚酯树脂的粘合剂树脂的调色剂; 脂肪酸酰胺化合物; 和着色剂，其中特定于脂肪酸酰胺化合物的波数为1638cm -1处的峰的高度（W）与波数的峰值（R）的比（W / R） 829cm -1，对于无定形聚酯树脂，使用Courier转换红外（FT-IR）分光光度计，通过ATR法（全反射率法）获得的吸收光谱中为0.010〜0.040。