IMAGE RECORDING METHOD, APPARATUS FOR SAID METHOD AND METHOD OF PRODUCING SAID APPARATUS
    3.
    发明公开
    IMAGE RECORDING METHOD, APPARATUS FOR SAID METHOD AND METHOD OF PRODUCING SAID APPARATUS 失效
    图像记录方法,用于描述方法的装置和生产装置的方法

    公开(公告)号:EP0456827A4

    公开(公告)日:1993-09-08

    申请号:EP90916801

    申请日:1990-11-16

    摘要: A photoconductive photosensitive member (2) and a charge retaining medium (1), which face one another at a predetermined interval, are exposed to light while a voltage is applied between them from an external power source (E). The discharge occurring in the exposed areas produces an electrostatic image on the charge retaining medium. In this method, the applied voltage is removed a predetermined time after a shutter (13) is closed so that all the carriers generated in the photosensitive member can be transferred to the charge retaining medium. Accordingly, the quantity of charge corresponding to an exposure quantity is stored in the charge retaining medium irrespective of the kind of the photoconductive member used. If the charge retaining medium or photosensitive member is charged in advance in this case, a positive image can be obtained with the external power source disconnected. Alternatively, the applied voltage may be removed after the photosensitive members are separated from the charge retaining member on which an electrostatic charge image has been formed. In this case, the image is prevented from distortion. On the other hand, if a spacer for keeping the photosensitive member and the charge retaining member in a spaced-apart relation is formed integrally with either the photosensitive member or the charge retaining medium, the discharge gap can easily be kept constant. Further, if the electrode of the photosensitive member or that of the charge retaining medium at a spacer portion is removed, it is effective to prevent dielectric breakdown which may be caused through the spacer.

    ELECTROSTATIC IMAGING BY MODULATION OF ION FLOW.
    5.
    发明公开
    ELECTROSTATIC IMAGING BY MODULATION OF ION FLOW. 失效
    ELEKTROSTATISCHE BILDFORMUNG在IONENFLUSSMODULIERUNG。

    公开(公告)号:EP0241459A4

    公开(公告)日:1989-07-11

    申请号:EP85905352

    申请日:1985-10-15

    申请人: DENNISON MFG CO

    IPC分类号: B41J2/415 G03G15/05 G03G15/32

    CPC分类号: G03G15/323

    摘要: Method and apparatus for ion projection electrographic imaging using a self-limiting discharge ion source (10). A pool of ions is generated by a high voltage time-varying potential (17) between two electrodes (14 and 18) separated by a solid dielectric (16); ions are extracted by means of an electrical field between one of the electrodes and a further electrode member (160). An apertured ion-modulating plate (20) is interposed between the ion source (10) and an image receptor surface (150) in order to modulate the cross-section of ion flow, thereby forming a desired electrographic image. This device enjoys the advantages of high print uniformity, simplicity of construction, and reliable, durable operation.

    摘要翻译: 用于使用自限制放电离子源(10)的离子投影电摄影成像的方法和装置。 通过由固体电介质(16)分开的两个电极(14和18)之间的高电压时变电势(17)产生离子池; 通过电极中的一个与另一个电极构件(160)之间的电场来提取离子。 在离子源(10)和图像接收表面(150)之间插入有孔离子调制板(20),以调制离子流的横截面,由此形成期望的电子照相图像。 该设备具有印刷均匀度高,结构简单,可靠耐用的优点。

    METHOD OF FORMING IMAGE.
    6.
    发明公开
    METHOD OF FORMING IMAGE. 失效
    程序显示图像。

    公开(公告)号:EP0165319A4

    公开(公告)日:1987-11-09

    申请号:EP84904179

    申请日:1984-11-22

    CPC分类号: B82Y15/00 G03G13/016

    摘要: An image-forming method includes a step of allowing electrically-conductive light-transmitting particles to adhere electrostatically to the surface of a photo-conductive substrate, a step of exposing the surface to the light of an image above the particles, and a step of separating particles which transmitted the light from those which did not transmit the light, to obtain a particle image formed by either of these groups of particles. The method includes an additional step, which is carried out after to the exposure step, of equalizing the potentials of the particles which transmitted the light, and the potentials of the particles which did not transmit the light. Thus it is possible to eliminate the conventional disadvantage that color purity is reduced in portions of high color density.