Apparatus for forming multicolor electrophotographic images through
wet-type developing process
    41.
    发明授权
    Apparatus for forming multicolor electrophotographic images through wet-type developing process 失效
    用于通过湿式显影方法形成多色电子照相图像的装置

    公开(公告)号:US4640605A

    公开(公告)日:1987-02-03

    申请号:US783025

    申请日:1985-10-02

    IPC分类号: G03G15/01 G03G15/06

    CPC分类号: G03G15/0121

    摘要: An apparatus for forming multicolor electrophotographic images through a wet-type developing process has charging, exposure, development, transfer, and cleaning devices disposed around a rotatable latent image carrier. The development device has at least one roller disposed in confronting relation to the latent image carrier, and a development housing in which the roller is rotatably disposed. During the developing process, the development device is supplied with a desired one of liquid developers of different colors stored in respective liquid developer tanks.

    摘要翻译: 用于通过湿式显影方法形成多色电子照相图像的装置具有设置在可旋转潜像载体周围的充电,曝光,显影,转印和清洁装置。 显影装置具有至少一个与潜像载体相对设置的辊,以及显影壳体,其中辊可旋转地设置。 在显影过程中,向显影装置供应所需的一种不同颜色的液体显影剂,其存储在各自的液体显影剂罐中。

    Wet type electrophotographic copying machine
    42.
    发明授权
    Wet type electrophotographic copying machine 失效
    湿式电子照相复印机

    公开(公告)号:US4373800A

    公开(公告)日:1983-02-15

    申请号:US207999

    申请日:1980-11-18

    IPC分类号: G03G15/11 G03G21/00 G03G15/10

    CPC分类号: G03G15/11 G03G21/0088

    摘要: A wet type electrophotographic copying machine of the type capable of performing one copy making process during substantially two revolutions of a photoconductor, which is provided with means for forming a liquid developer deposition portion by charging, exposure and development, on the downstream side of an image formation area on the photoconductor, the liquid developer deposition portion capable of substantially narrowing the gap between the photoconductor and a squeegee roller, whereby the squeezing of excess developer from the surface of the photoconductor can be performed at the squeezing initiation point on the photoconductor, thus attaining a sharp squeezing effect, and the adhesion of the excess liquid developer to an image transfer material can be prevented.

    摘要翻译: 该类型的湿式电照相复印机能够在大致两圈的感光体中进行一次复印制作工艺,该感光体在图像的下游侧设置有用于通过充电,曝光和显影形成液体显影剂沉积部分的装置 光电导体上的形成区域,液体显影剂沉积部分能够基本上使得光电导体和刮板辊之间的间隙变窄,从而可以在光电导体的挤压起始点处从光电导体的表面挤压多余的显影剂,从而 达到急剧的挤压效果,并且可以防止多余的液体显影剂对图像转印材料的粘附。

    Electrostatic copying apparatus
    43.
    发明授权
    Electrostatic copying apparatus 失效
    静电复印机

    公开(公告)号:US4310238A

    公开(公告)日:1982-01-12

    申请号:US181609

    申请日:1980-08-27

    IPC分类号: G03G15/10 G03G15/00

    CPC分类号: G03G15/105 Y10S222/01

    摘要: First and second sensors (37), (39) are provided in a developing tank (36) containing a liquid developer consisting of a liquid carrier or dispersant and toner particles dispersed in the carrier. The first sensor (37) measures the electrical resistivity of the developer whereas the second sensor (39) measures the optical transmissibility thereof. Additional toner is supplied into the developer to maintain the transmissivity at a value which is a predetermined function of the resistivity. The transmissibility value is reduced as the resistivity increases, thereby maintaining the copy image density constant. The first sensor (37) includes two electrodes immersed in the developer and an A.C. or D.C. voltage is applied thereacross. The current flow through the electrodes (37) and thereby the developer is measured to determine the resistivity of the developer. Where the applied voltage is D.C., an arrangement is provided to mechanically scrape accumulated developer off the electrodes (37) at intermittent intervals.

    摘要翻译: 第一和第二传感器(37),(39)设置在包含由液体载体或分散剂组成的液体显影剂和分散在载体中的调色剂颗粒的显影槽(36)中。 第一传感器(37)测量显影剂的电阻率,而第二传感器(39)测量其透光率。 附加的调色剂被供应到显影剂中以将透射率保持在作为电阻率的预定函数的值。 透射率值随着电阻率的增加而减小,从而保持复印图像的密度不变。 第一传感器(37)包括浸在显影剂中的两个电极,并且在其上施加交流或直流电压。 测量通过电极(37)和由此显影剂的电流流动以确定显影剂的电阻率。 在施加的电压为直流电的情况下,提供了一种布置以间歇地间隔地将积聚的显影剂从电极(37)上刮除。

    Developing device in electrophotographic copying apparatus
    44.
    再颁专利
    Developing device in electrophotographic copying apparatus 失效
    显影装置在电子照相复印装置中

    公开(公告)号:USRE30535E

    公开(公告)日:1981-03-03

    申请号:US35897

    申请日:1979-05-03

    摘要: An improved developing device in electrophotographic copying apparatus in which a plurality of developing electrodes are disposed along a path of movement of a photosensitive drum surface. The electrodes are applied with voltages in a graded manner which conforms to the damping characteristic of the potential on the photosensitive surface at a developing station. The values of voltages applied can be controlled in accordance with the value of potential formed by an imaging area of the drum surface while maintaining the graded potential to thereby achieve an excellent developing effect. Further, the drum surface is provided with an unexposed and hence high potential portion which serves to remove toner which accumulates on the electrodes.

    Drum cleaning process and apparatus for electrophotography
    45.
    发明授权
    Drum cleaning process and apparatus for electrophotography 失效
    滚筒清洗工艺和电子照相设备

    公开(公告)号:US4201465A

    公开(公告)日:1980-05-06

    申请号:US919640

    申请日:1978-06-27

    IPC分类号: G03G21/00

    CPC分类号: G03G21/0005

    摘要: Charging, imaging, developing, transfer and cleaning units are operatively arranged about the circumference of a rotary photoconductive drum, the developing unit comprising a magnetic brush. A discharge unit is disposed between the transfer unit and the cleaning unit and comprises a light source and a corona discharge element to simultaneously illuminate the drum causing photoconduction and expose the drum to an electric field thereby neutralizing any residual charge on the drum and residual toner particles remaining on the drum after the transfer operation. The residual toner is subsequently removed by the magnetic brush of the developing unit.

    摘要翻译: 充电,成像,显影,转印和清洁单元围绕旋转感光鼓的圆周可操作地布置,显影单元包括磁刷。 放电单元设置在转印单元和清洁单元之间,并且包括光源和电晕放电元件,以同时对鼓进行照明,从而引起光感应并使滚筒暴露于电场,从而中和滚筒和残留调色剂颗粒上的任何残余电荷 转移操作后保留在鼓上。 随后通过显影单元的磁刷除去残留调色剂。

    Developing electrode contamination prevention system for
electrophotography
    46.
    发明授权
    Developing electrode contamination prevention system for electrophotography 失效
    开发用于电子照相的电极污染防止系统

    公开(公告)号:US4025184A

    公开(公告)日:1977-05-24

    申请号:US602059

    申请日:1975-08-05

    申请人: Manabu Mochizuki

    发明人: Manabu Mochizuki

    CPC分类号: G03G15/065 G03G15/047

    摘要: A photoconductive drum has an image portion and a non-image portion. A biasing voltage is applied to a developing electrode when the image portion of the drum is adjacent thereto. The developing electrode is grounded when the non-image portion of the drum is adjacent thereto to prevent toner particles from being attracted thereto to accumulate and contaminate the developing electrode. A low voltage is applied to the non-image portion of the drum to remove toner from the developing electrode which was attracted thereto during development of the image portion of the drum.

    摘要翻译: 感光鼓具有图像部分和非图像部分。 当滚筒的图像部分相邻时,施加偏压电压到显影电极。 当鼓的非图像部分与其相邻时,显影电极接地,以防止调色剂颗粒被吸引到其上,从而累积并污染显影电极。 对滚筒的非图像部分施加低电压以在显影滚筒的图像部分期间从显影电极移除调色剂,该显影电极被吸引到其上。

    Developing device in electrophotographic copying apparatus
    47.
    发明授权
    Developing device in electrophotographic copying apparatus 失效
    显影装置在电子照相复印装置中

    公开(公告)号:US4021111A

    公开(公告)日:1977-05-03

    申请号:US584294

    申请日:1975-06-06

    摘要: An improved developing device in electrophotographic copying apparatus in which a plurality of developing electrodes are disposed along a path of movement of a photosensitive drum surface. The electrodes are applied with voltages in a graded manner which conforms to the damping characteristic of the potential on the photosensitive surface at a developing station. The values of voltages applied can be controlled in accordance with the value of potential formed by an imaging area of the drum surface while maintaining the graded potential to thereby achieve an excellent developing effect. Further, the drum surface is provided with an unexposed and hence high potential portion which serves to remove toner which accumulates on the electrodes.

    摘要翻译: 一种电子照相复印装置中的改进的显影装置,其中多个显影电极沿着感光鼓表面的移动路径设置。 电极以分级方式施加,其符合显影站处的感光表面上的电位的阻尼特性。 施加的电压值可以根据由滚筒表面的成像区域形成的电势值进行控制,同时保持分级电位从而达到优异的显影效果。 此外,鼓表面设置有未暴露的高电位部分,其用于去除积聚在电极上的调色剂。