Electrode configuration for ac electrophotography
    31.
    发明授权
    Electrode configuration for ac electrophotography 失效
    电气电路的电极配置

    公开(公告)号:US3598485A

    公开(公告)日:1971-08-10

    申请号:US3598485D

    申请日:1969-04-01

    摘要: A persistent internal polarization (PIP) electrophotography printing or copying system uniquely adapted to be used in combination with alternating current wherein a pair of electrodes, each including a plurality of elements disposed in spaced array alternating with each other in the same plane, are utilized in combination with a PIP layer such that an alternating current electric field may be simultaneously applied to the PIP layer while permitting light radiation to reach the PIP layer. In the specific practice, the pair of electrodes are positioned on top of or embedded in the surfaces of the PIP layer which is to be toned; that is, the top surface.

    LIGHT SCANNING APPARATUS AND IMAGE FORMING APPARATUS

    公开(公告)号:US20240310748A1

    公开(公告)日:2024-09-19

    申请号:US18594985

    申请日:2024-03-04

    发明人: YU MIYAJIMA

    IPC分类号: G03G15/04 G03G15/056

    CPC分类号: G03G15/0409 G03G15/056

    摘要: Provided is an apparatus including: an element in which a fine structure changing a polarization state of a light flux from a light source is formed on at least one of an incident surface or an exit surface thereof; a deflecting unit deflecting light flux that has passed through optical element to scan a scanned surface in a main scanning direction; and an optical system guiding light flux deflected by deflecting unit to scanned surface, wherein fine structure includes a plurality of protruding portions each extending in a first direction, the plurality of protruding portions being arrayed in a second direction perpendicular to first direction, and wherein the following condition is satisfied:


    1/20≤Δ1/λ1≤1/6,

    where Δ1 represents a phase difference between first direction and second direction of birefringence caused by fine structure, and λ1 represents a wavelength of light flux.

    Optical apparatus and image pickup apparatus

    公开(公告)号:US10139548B2

    公开(公告)日:2018-11-27

    申请号:US15636750

    申请日:2017-06-29

    发明人: Yutaka Yamaguchi

    摘要: An optical apparatus is configured to introduce light from an object to an image pickup element, and includes first, second, and third retardation plates, a polarizer, and a setter. The first retardation plate, the second retardation plate, and the polarizer are arranged in this order from a side of the object to a side of the image pickup element. The slow axis direction or the fast axis direction of the second retardation plate tilts to the slow axis direction or the fast axis direction of the first retardation plate. The setter sets the retardation of the second retardation plate according to the polarization component of the light from the object.

    Light amount measuring device, image forming apparatus, and toner density measuring apparatus
    37.
    发明授权
    Light amount measuring device, image forming apparatus, and toner density measuring apparatus 有权
    光量测量装置,图像形成装置和调色剂浓度测量装置

    公开(公告)号:US07885559B2

    公开(公告)日:2011-02-08

    申请号:US11846912

    申请日:2007-08-29

    申请人: Osamu Takahashi

    发明人: Osamu Takahashi

    IPC分类号: G03G15/056

    摘要: A light amount measuring device, according to the present invention can include, a light-receiving sensor capable of outputting a voltage corresponding to an amount of incident light, an A/D converting portion capable of converting an input voltage into a digital value, a light amount calculating portion capable of calculating the amount of light incident on the light-receiving sensor on the basis of the digital value obtained by conversion by the A/D converting portion, a resistor connected between the A/D converting portion and the light-receiving sensor, a zener diode has one end connected between the A/D converting portion and the resistor, wherein the zener diode is capable of allowing a breakdown current flow from the one end to another end if an output voltage from the light-receiving sensor is not less than a predetermined value.

    摘要翻译: 根据本发明的光量测量装置可以包括:能够输出与入射光量相对应的电压的光接收传感器,能够将输入电压转换为数字值的A / D转换部, 光量计算部,其能够基于通过A / D转换部的转换获得的数字值来计算入射到光接收传感器的光量;连接在A / D转换部和发光元件之间的电阻, 接收传感器,齐纳二极管的一端连接在A / D转换部分和电阻器之间,其中齐纳二极管能够允许击穿电流从一端流到另一端,如果来自光接收传感器的输出电压 不小于预定值。

    Process cartridge and image forming apparatus using the same
    38.
    发明授权
    Process cartridge and image forming apparatus using the same 失效
    处理盒和使用其的成像装置

    公开(公告)号:US5442421A

    公开(公告)日:1995-08-15

    申请号:US038058

    申请日:1993-03-30

    申请人: Hisayoshi Kojima

    发明人: Hisayoshi Kojima

    摘要: A process cartridge has an electrophotographic photoconductive member and a developing device for developing a latent image on the photoconductive member as a unit and which is detachable from the apparatus body, and a multiple image forming apparatus with the cartridge mounted therein. Since a contact portion for bringing a developing agent bearing member of a developing device in the apparatus body into contact with the process cartridge is disposed on the side of the process cartridge, it is possible to improve the positioning accuracy of the photoconductive member in the cartridge and the developing device in the apparatus body.

    摘要翻译: 处理盒具有电子照相感光体和显影装置,用于将感光体上的潜像作为一个单元显影,并且可与装置主体分离;以及多个图像形成装置,其中安装有盒。 由于用于将显影装置的显影装置的显影剂承载构件与处理盒接触的接触部分设置在处理盒的侧面上,所以可以提高感光体在盒中的定位精度 和显影装置。

    Reversible or irreversible production of an image
    39.
    发明授权
    Reversible or irreversible production of an image 失效
    可逆或不可逆转的图像制作

    公开(公告)号:US5418555A

    公开(公告)日:1995-05-23

    申请号:US975886

    申请日:1992-11-13

    摘要: In a novel process for the reversible or irreversible production of an image by the imagewise action of energy on a recording layer, resulting in a pattern of surface charges which corresponds to the imagewise action of the energy, on the surface of the recording layer, the recording layer used is one which contains or consists of an organic material which solidifies in glassy form, is nonphotoconductive or only slightly photoconductive and has permanent dipoles, wherein the pattern of surface charges is produced, without or almost without formation of free charge carriers, by reversible imagewise orientation of some or all of the permanent dipoles present in the recording layer, with the aid of an electric field applied imagewise. The novel process is advantageously carried out using a novel apparatus which comprises a suitable recording element, apparatus for the imagewise action of an electric field on the recording layer of the recording element and a counter-electrode which is in direct, non-frictional contact with the recording layer and can be removed again therefrom. The pattern of surface charges which is produced by the novel process can be treated with liquid or solid toners. The resulting toner image can then either be fixed on the recording layer or transferred from the recording layer to another surface, after which the pattern of surface charges can be deleted by uniform action of energy. Thereafter, a further image can be produced. In this way, it is possible to produce photocopies without the high voltage sources required in the conventional electrophotographic processes having to be used.

    摘要翻译: 在通过能量在记录层上的成像作用的可逆或不可逆的图像生成的新颖方法中,在记录层的表面上产生对应于能量的成像作用的表面电荷的图案, 使用的记录层是含有或由有机材料组成的材料,其以玻璃状固化,不受光导或仅具有光导电性并且具有永久偶极子,其中产生表面电荷的图案,没有或几乎不形成游离载流子,由 借助于成像的电场,存在于记录层中的一些或全部永久偶极子的可逆图像取向。 新颖的方法有利地使用新颖的装置进行,该装置包括合适的记录元件,用于在记录元件的记录层上的电场的成像作用的装置和与电极直接,非摩擦接触的对电极 记录层,并且可以从其再次移除。 通过新方法生产的表面电荷的图案可以用液体或固体调色剂处理。 所得到的调色剂图像然后可以固定在记录层上或从记录层转移到另一个表面,之后可以通过均匀的能量作用来删除表面电荷的图案。 此后,可以产生另外的图像。 以这种方式,可以在没有必须使用常规电子照相方法所需的高电压源的情况下生产复印件。

    Reversible or irreversible production of an image
    40.
    发明授权
    Reversible or irreversible production of an image 失效
    可逆或不可逆转的图像制作

    公开(公告)号:US5312703A

    公开(公告)日:1994-05-17

    申请号:US838293

    申请日:1992-03-13

    摘要: A process for the reversible or irreversible production of an image by imagewise exposure of a recording layer to energy in the presence or absence of an electrical and/or magnetic field, resulting in a pattern of surface charges on the surface of the recording layer corresponding to the imagewise exposure to energy. The recording layer consists essentially ofan organic material which solidifies in a glass-like manner, is non-photoconductive or substantially non-photoconductive and contains permanent dipoles, in whichthe pattern of surface charges is produced without or substantially without the formation of free charge carriers by reversible imagewise alignment of at least some of the permanent dipoles present in the recording layer.The process is advantageously carried out using an apparatus which comprises a suitable recording element, devices for imagewise exposure of the recording layer of the recording element to energy, and a counter-electrode which is in direct contact with the recording layer and can be removed therefrom. The pattern of surface charges produced by the process can be toned with liquid or solid toners. The resultant toner image can then either be fixed on the recording layer or transferred from the recording layer to another surface, after which the pattern of surface charges can be erased by exposing the entire surface to energy. A further image can then be produced. In this way, photocopies can be produced without the need to use the high-voltage sources which are necessary in conventional electrophotographic processes.

    摘要翻译: PCT No.PCT / EP90 / 01539 Sec。 371日期:1992年3月13日 102(e)1992年3月13日PCT PCT 1990年9月12日PCT公布。 出版物WO91 / 04514 日期1991年4月4日。一种通过在存在或不存在电场和/或磁场的情况下通过将记录层图像曝光成能量来逆转或不可逆地产生图像的方法,导致在 记录层的表面对应于图像曝光能量。 记录层基本上由有机材料组成,其以玻璃状的方式固化,是非光导或基本上非光导的,并且包含永久偶极子,其中表面电荷的图案不产生或基本上不形成游离电荷 载体通过存在于记录层中的至少一些永久偶极子的可逆图像取向。 该方法有利地使用包括合适的记录元件的装置,用于将记录元件的记录层成像曝光到能量的装置以及与记录层直接接触并可从其移除的对电极 。 由该方法产生的表面电荷的图案可以用液体或固体调色剂调色。 所得到的调色剂图像然后可以固定在记录层上或从记录层转移到另一个表面,之后可以通过将整个表面暴露于能量来消除表面电荷的图案。 然后可以产生另一图像。 以这种方式,可以生产复印件,而不需要使用常规电子照相方法中所需的高压源。