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    Electrophotographic imaging member having two charge transport layers for limiting toner consumption
    3.
    发明授权
    Electrophotographic imaging member having two charge transport layers for limiting toner consumption 有权
    具有两个用于限制调色剂消耗的电荷输送层的电子照相成像构件

    公开(公告)号：US06379853B1

    公开(公告)日：2002-04-30

    申请号：US09722578

    申请日：2000-11-28

    申请人： Liang-bih Lin ,  Cindy C. Chen ,  Richard H. Nealey ,  Harold F. Hammond ,  Robert W. Nolley ,  Kenny-Tuan T. Dinh

    发明人： Liang-bih Lin ,  Cindy C. Chen ,  Richard H. Nealey ,  Harold F. Hammond ,  Robert W. Nolley ,  Kenny-Tuan T. Dinh

    IPC分类号： G03G5047

    CPC分类号： G03G5/0614 ,  G03G5/043 ,  G03G5/047 ,  G03G5/0616

    摘要： An electrophotographic imaging member including a supporting substrate, an optional charge blocking layer, an optional adhesive layer, a charge generating layer, and a charge transporting element including two sequentially deposited charge transport layers each including a hole transport material and an optional film forming binder. A first charge transport layer exhibits a first charge carrier transit time and second charge transport layer exhibits a second charge carrier transit time. The two charge transport layers are formed in one of two ways. First, each layer can be formed from a different charge transport material so that the charge mobility of the charge transport material of the first charge transport layer is about 4 to about 20 times lower than the charge mobility of the charge transport material of the second charge transport layer. Or, alternatively, each charge transport layer can be made using a different amount of the same charge transport material. In this case, the first charge transport layer includes of an amount of charge transport material that is about 5% to about 30% less than an amount of charge transport material used to form the second charge transport layer. In either case, the resulting electrophotographic imaging member exhibits a discharge surface potential at a light exposure greater than about 3 erg/cm2, at a post exposure delay between about 20 milliseconds and about 500 milliseconds that can be raised from about 20 to about 200 volts above a discharge potential of an imaging member having the same components as the imaging member of the present invention except having only a single charge transport layer with a thickness that is equivalent to the charge transporting element of the present invention.

    摘要翻译： 一种电子照相成像构件，包括支撑衬底，可选的电荷阻挡层，任选的粘合剂层，电荷产生层和电荷输送元件，其包括两个依次沉积的电荷输送层，每个电荷输送层包括空穴传输材料和任选的成膜粘合剂。 第一电荷传输层表现出第一电荷载流子传输时间，第二电荷传输层表现出第二电荷载流子传输时间。 两个电荷输送层以两种方式之一形成。 首先，每个层可以由不同的电荷传输材料形成，使得第一电荷输送层的电荷输送材料的电荷迁移率比第二电荷的电荷输送材料的电荷迁移率低约4至约20倍 运输层 或者，可以使用不同量的相同的电荷传输材料来制造每个电荷传输层。 在这种情况下，第一电荷输送层包含比用于形成第二电荷输送层的电荷输送材料量少约5％至约30％的电荷输送材料的量。 在任一情况下，所得到的电子照相成像构件在约20毫秒至约500毫秒之间的后曝光延迟时表现出大于约3埃格/厘米2的曝光时的放电表面电位，其可以从约20至约200伏 高于具有与本发明的成像构件相同的成分的成像构件的放电电位，只是具有与本发明的电荷输送元件相当的厚度的单个电荷输送层。

    Imaging member with partially conductive overcoating
    5.
    发明授权
    Imaging member with partially conductive overcoating 有权
    具有部分导电涂层的成像构件

    公开(公告)号：US06139999A

    公开(公告)日：2000-10-31

    申请号：US429387

    申请日：1999-10-28

    申请人： Timothy J. Fuller ,  Damodar M. Pai ,  John F. Yanus ,  Paul J. DeFeo ,  Anthony T. Ward ,  Dale S. Renfer ,  Harold F. Hammond ,  Merlin E. Scharfe ,  Markus R. Silvestri ,  William W. Limburg

    发明人： Timothy J. Fuller ,  Damodar M. Pai ,  John F. Yanus ,  Paul J. DeFeo ,  Anthony T. Ward ,  Dale S. Renfer ,  Harold F. Hammond ,  Merlin E. Scharfe ,  Markus R. Silvestri ,  William W. Limburg

    IPC分类号： G03G5/05 ,  G03G5/147

    CPC分类号： G03G5/0592 ,  G03G5/0571 ,  G03G5/14765 ,  G03G5/14791

    摘要： An electrophotographic imaging member includingat least one photographic imaging layer anda partially electrically conductive overcoat layer includingfinely divided charge injection enabling particles dispersed ina charge transporting continuous matrix including a cross linked polyamide, charge transport molecules and oxidized charge transport molecules, the continuous matrix being formed from a solution selected from the group includinga first solution includingcrosslinkable alcohol soluble polyamide containing methoxy methyl groups attached to amide nitrogen atoms,an acid having a pK.sub.a of less than about 3,a cross linking agent selected from the group comprising a formaldehyde generating cross linking agent, an alkoxylated cross linking agent, a methylolamine cross linking agent and mixtures thereof,a dihydroxy arylamine, anda liquid selected from the group including alcohol solvents, diluent and mixtures thereof,a second solution includingcrosslinkable alcohol soluble polyamide free of methoxy methyl groups attached to amide nitrogen atoms,an acid having a pK.sub.a of less than about 3,an alkoxylated cross linking agent, a methylolamine cross linking agent and mixtures thereof,a dihydroxy arylamine, anda liquid selected from the group including alcohol solvents, diluent and mixtures thereof.The electrophotographic imaging process is also disclosed.

    摘要翻译： 一种电子照相成像构件，包括至少一个照相成像层和部分导电的外涂层，其包括分散在包含交联聚酰胺，电荷传输分子和氧化电荷传输分子的电荷传输连续基质中的细碎电荷注入使颗粒，连续基质 由选自包含第一溶液的溶液形成，所述溶液包括含有与酰胺氮原子连接的甲氧基甲基的可交联醇可溶性聚酰胺，pKa小于约3的酸，选自甲醛的交联剂 产生交联剂，烷氧基化交联剂，羟甲基胺交联剂及其混合物，二羟基芳基胺和选自醇溶剂，稀释剂及其混合物的液体;第二溶液，包括可交联醇可溶性聚 不含与酰胺氮原子连接的甲氧基甲基，pKa小于约3的酸，烷氧基化交联剂，羟甲基胺交联剂及其混合物，二羟基芳基胺和选自以下的液体： 醇溶剂，稀释剂及其混合物。 还公开了电子照相成像方法。