Electrophotographic apparatus including a screen member for decreasing
side edge electrostatic charge
    1.
    发明授权
    Electrophotographic apparatus including a screen member for decreasing side edge electrostatic charge 失效
    包括用于减少侧边静电电荷的屏幕部件的电子照相设备

    公开(公告)号:US4320956A

    公开(公告)日:1982-03-23

    申请号:US128563

    申请日:1980-03-10

    CPC分类号: G03G15/30 G03G15/0275

    摘要: An electrophotographic apparatus comprising a corona charger, a photosensitive and electrostatic-charge retentive drum including an electrically conductive substrate and a photosensitive layer having a narrower width than that of a record paper, and a screening member inserted between the corona charger and a peripheral part of the photosensitive and electrostatic-charge-retentive member for gradually decreasing a quantity of electrostatic charge charged at side edge portions of the photosensitive layer in a direction toward the side edges of the photosensitive layer, whereby black line and stripe can be prevented from appearing along the side edges of the record paper.

    摘要翻译: 一种电子照相设备,包括电晕充电器,感光和静电充电保持性鼓,其包括导电基底和具有比记录纸窄的宽度的感光层,以及插入电晕充电器和周围部分之间的屏蔽元件 感光和静电电荷保持部件,用于逐渐减小在感光层的侧边缘的方向上在感光层的侧边缘部分充电的静电荷量,从而可以防止沿着感光层的侧边缘出现黑线和条纹 记录纸的侧边缘。

    Electrophotographic apparatus having means for removing undesired charge
concentrated on an edge portion of a photosensitive member
    2.
    发明授权
    Electrophotographic apparatus having means for removing undesired charge concentrated on an edge portion of a photosensitive member 失效
    具有用于去除集中在感光构件的边缘部分上的不期望电荷的装置的电子照相设备

    公开(公告)号:US4405224A

    公开(公告)日:1983-09-20

    申请号:US210386

    申请日:1980-11-17

    CPC分类号: G03G15/22 G03G15/047

    摘要: An electrophotographic apparatus for producing one or more copied images of an original by forming an electrostatic latent image of the original on a photosensitive member whose width is narrower than that of a recording paper, developing the latent image, and transferring the developed image onto the recording paper, the apparatus including a device for removing electric charge from edge portions of the photosensitive member after said transferring but before next succeeding development of said latent image in the course of repeating developments and transferrings of one electrostatic latent image formed on said photosensitive member.

    摘要翻译: 一种电子照相设备,用于通过在其宽度窄于记录纸的感光构件上形成原稿的静电潜像,显影潜像并将显影图像转印到记录上来产生原稿的一个或多个复印图像 纸,该装置包括用于在所述转印之后,但在形成在所述感光构件上形成的一个静电潜像的重复发展和转印过程中的所述潜像的下一次显影之前从所述感光构件的边缘部分移除电荷的装置。

    Duplicating system comprising electrophotographic copying apparatus and
option devices
    3.
    发明授权
    Duplicating system comprising electrophotographic copying apparatus and option devices 失效
    复印系统包括电子照相复印装置和选项装置

    公开(公告)号:US4408870A

    公开(公告)日:1983-10-11

    申请号:US261740

    申请日:1981-05-07

    摘要: A duplicating system comprises an electrophotographic copying apparatus which includes a first optical scanning system for making a slit exposure, a first document feeder for feeding a first document to be copied at a first speed with respect to the first optical scanning system, a rotating photosensitive drum for forming an electrostatic latent image corresponding to the image of document, and means for forming a duplicated copy with the aid of the latent image; and an option device detachably mounted onto the copying apparatus and comprising a second optical scanning system for making a slit exposure, a second document feeder for feeding a second document to be copied at a second speed with respect to the second optical scanning system and an optional optical system for projecting the image of second document onto the photosensitive drum. The first document feeder in the copying apparatus and the second document feeder in the option device are so constructed that the first and second documents are fed in the same direction.

    摘要翻译: 复制系统包括电子照相复印设备,其包括用于进行狭缝曝光的第一光学扫描系统,用于相对于第一光学扫描系统以第一速度馈送要被复制的第一文档的第一文件馈送器,旋转感光鼓 用于形成对应于文件图像的静电潜像,以及借助于潜像形成复制副本的装置; 以及可拆卸地安装在所述复印设备上并且包括用于进行狭缝曝光的第二光学扫描系统的第二文件馈送器,用于相对于所述第二光学扫描系统以第二速度馈送待复制的第二文档的第二文档馈送器, 用于将第二文件的图像投影到感光鼓上的光学系统。 复印装置中的第一送稿器和选件装置中的第二送稿器被构造成使得第一和第二文件沿相同方向进给。

    Electrographic apparatus
    4.
    发明授权
    Electrographic apparatus 失效
    电子仪器

    公开(公告)号:US4298270A

    公开(公告)日:1981-11-03

    申请号:US116391

    申请日:1980-01-29

    CPC分类号: G03G15/605

    摘要: An electrographic apparatus comprising a main body, a manuscript discharge tray, a slit light exposure portion, a manuscript feed mechanism including upper and lower feed mechanisms, the upper feed mechanism being arranged movably with respect to the lower feed mechanism, a photosensitive body, a sheet manuscript edge guide, a thick manuscript edge guide and means for automatically changing the two edge guides in response to a movement of the upper feed mechanism with respect to the lower feed mechanism; the apparatus being constructed and arranged such that in the case of obtaining copies of a sheet manuscript the sheet manuscript is fed by the manuscript feed mechanism under a condition that the upper feed mechanism is mounted on the lower feed mechanism and scanned by exposed light by one time and in the case of obtaining copies of a thick manuscript a thick manuscript carriage on which is disposed the thick manuscript is fed by the lower feed mechanism under a condition that the upper feed mechanism is moved from the lower feed mechanism and scanned by exposed light by one time.

    摘要翻译: 一种电摄影装置,包括主体,原稿排出托盘,狭缝曝光部分,包括上部和下部进给机构的原稿进给机构,上部进给机构相对于下部进给机构可移动地布置,感光体, 片材原稿边缘引导件,厚的原稿边缘引导件和用于响应于上部进给机构相对于下部进给机构的运动而自动改变两个边缘引导件的装置; 该装置的构造和布置使得在获得原稿的副本的情况下,在原稿进给机构安装在下进给机构上并通过暴露的光被一个扫描的条件下,原稿进给机构进给纸原稿 时间,并且在获得厚厚的原稿的副本的情况下,厚厚的原稿放置在其上的厚的手稿托架由下进给机构在上进给机构从下进给机构移动并被暴露的光扫描的条件下进给 一次

    Bias voltage adjusting means for electrophotographic apparatus
    5.
    发明授权
    Bias voltage adjusting means for electrophotographic apparatus 失效
    用于电子照相设备的偏压调节装置

    公开(公告)号:US4293213A

    公开(公告)日:1981-10-06

    申请号:US1927

    申请日:1979-01-08

    IPC分类号: G03G15/05 G03G15/00

    CPC分类号: G03G15/051

    摘要: An electrographic apparatus comprising a photosensitive screen composed of an insulating layer, two electrically conductive layers coated on opposite sides of the insulating layer and a photosensitive layer coated on one of said electrically conductive layers, and a bias electric source connected between the two electrically conductive layers and producing, on a dielectric coated record sheet, an electrostatic latent image corresponding to an image to be reproduced is disclosed. The apparatus comprises means for adjusting a bias voltage supplied from the bias electric source and applied between the two electrically conductive layers.

    摘要翻译: 一种电摄影装置,包括由绝缘层,涂覆在绝缘层的相对侧上的两个导电层和涂覆在所述导电层中的一个上的感光层组成的感光屏和连接在两个导电层之间的偏置电源 并且在电介质涂覆的记录片材上产生对应于要再现的图像的静电潜像。 该装置包括用于调节从偏置电源提供并施加在两个导电层之间的偏置电压的装置。

    Toner cleaning device for an electrophotographic apparatus
    6.
    发明授权
    Toner cleaning device for an electrophotographic apparatus 失效
    用于电子照相设备的调色剂清洁装置

    公开(公告)号:US4264190A

    公开(公告)日:1981-04-28

    申请号:US29351

    申请日:1979-04-11

    IPC分类号: B01D46/10 G03G21/00 G03G21/10

    CPC分类号: G03G21/0035

    摘要: A cleaning device for an electrophotographic apparatus including a cleaning brush for cleaning unnecessary residual toner particles adhered to an electrostatic latent image retentive member, a cleaning fan for obtaining an air flow to suck the toner particles scraped by the brush and a filter for collecting the sucked toner particles is disclosed. The cleaning device comprises a path of the air flow for sucking the toner particles being made thick at the vicinity of the filter thereby to slow down a speed of the air flow, to easily catch the toner particles by the filter and to drop down the toner particles in front of the filter, and a toner reservoir being provided for collecting the toner particles dropped in front of the filter.

    摘要翻译: 一种用于电子照相设备的清洁装置,包括用于清洁粘附到静电潜像保持构件的不必要的残留调色剂颗粒的清洁刷,用于获得空气流以吸收由刷刮下的调色剂颗粒的清洁风扇和用于收集被吸附的 公开了调色剂颗粒。 清洁装置包括用于吸附在过滤器附近制成厚度的调色剂颗粒的空气流的路径,从而减缓空气流的速度,从而容易地通过过滤器捕获调色剂颗粒并将调色剂下降 在过滤器前面的颗粒,以及调色剂储存器,用于收集落在过滤器前面的调色剂颗粒。

    Corona discharge device for electrographic apparatus
    7.
    发明授权
    Corona discharge device for electrographic apparatus 失效
    用于电子照相设备的电晕放电装置

    公开(公告)号:US4227233A

    公开(公告)日:1980-10-07

    申请号:US838233

    申请日:1977-09-30

    IPC分类号: G03G15/02 H01T19/00 G03G15/00

    CPC分类号: G03G15/0291 H01T19/00

    摘要: A corona discharge device for electrographic apparatus which makes use of a drum-shaped photosensitive screen. The device is provided with a corona electric field establishing electrode extending in parallel with a corona discharge wire and supplied with an electric potential which is intermediate the electric potential of a field electrode and the electric potential of the corona discharge wire.

    摘要翻译: 一种用于电摄影装置的电晕放电装置,其使用鼓形感光屏。 该装置设置有与电晕放电线并联延伸的电晕电场建立电极,并且被提供有位于场电极的电位和电晕放电线的电位之间的电位。

    Electrophotographic apparatus
    8.
    发明授权

    公开(公告)号:US4215931A

    公开(公告)日:1980-08-05

    申请号:US30623

    申请日:1979-04-16

    IPC分类号: G03G21/14 G03G15/00

    摘要: An electrophotographic apparatus for forming or printing any desired number of copies of a document from the same and single electrostatic charge latent image comprisinga photosensitive member such as a photoconductive drum which is rotated at a constant velocity;a corona charger for uniformly charging the photosensitive drum;a document feeding device for advancing the document through an exposure-scanning portion at a constant speed;an optical device for projecting an image of the document at the exposure-scanning portion onto the drum to form an electrostatic charge latent image thereon;a developing device for developing the latent image with toner particles to form a toner image;a transferring device for transferring the toner image onto a record paper;a fixing device for fixing the toner image on the record paper to form a final copy;a clock pulse generator for producing clock pulses in synchronism with the rotation of the photosensitive drum;master and slave timing pulse generators for receiving the clock pulses to produce timing pulses;means for detecting the document at the document feeding means to produce a document detection signal;means for setting the desired copy number to be formed to produce a copy number signal; anda control device for receiving the timing pulses, the document detection signal, and the copy number signal to produce control signals necessary for controlling the operation of the various devices of the apparatus. Duplicating operation for forming a single copy is divided into two portions each of which is assigned to the master and slave timing pulse generators, respectively, whereby during the duplication for the last copy of the desired number of copies under the control of the slave timing pulse generator, a new duplication for a next document can be initiated under the control of the master timing pulse generator which produces timing pulses necessary for duplication during one rotation of the photosensitive drum.

    Filter assembly for collecting used toner of electrophotographic copying
machine
    10.
    发明授权
    Filter assembly for collecting used toner of electrophotographic copying machine 失效
    用于收集电子照相复印机用过的碳粉的过滤器组件

    公开(公告)号:US4295734A

    公开(公告)日:1981-10-20

    申请号:US104444

    申请日:1979-12-17

    摘要: A filter assembly for use in an electrophotographic copying machine to collect used toner which is swept off a member carrying an electrostatic latent image, by means of a rotating brush comprises a filter unit having a toner receiver and a filter holder which are integrally formed together. The filter holder carries a filter element or elements therein, and the toner receiver allows the toner which falls down in front of the filter element to form a pile thereon. The unit is detachably mounted on the copying machine. A labyrinth seal is formed between the unit and the machine when the unit is mounted in place.

    摘要翻译: 一种用于电子照相复印机中的滤光器组件,用于收集通过旋转刷子扫过携带静电潜像的构件的用过的调色剂,该过滤器组件具有一体形成在一起的调色剂接收器和过滤器保持器。 过滤器支架在其中承载过滤器元件,并且调色剂接收器允许在过滤器元件前面落下的调色剂在其上形成绒毛。 该单元可拆卸地安装在复印机上。 当设备安装就位时,在设备和机器之间形成迷宫式密封。