Laser plate-making apparatus
    1.
    发明授权
    Laser plate-making apparatus 失效
    激光制版设备

    公开(公告)号:US4774532A

    公开(公告)日:1988-09-27

    申请号:US116338

    申请日:1987-11-04

    IPC分类号: G03G15/10 G03G15/22

    CPC分类号: G03G15/10 G03G15/22

    摘要: A laser plate-making apparatus includes a moistureproof paper feed magazine for feeding plate materials one by one, each having a photosensitive layer, a charger for charging the plate material with an electric charge, an exposing unit for exposing the plate material charged with the electric charge, using a laser beam modulated in accordance with a plate-making image to partially neutralize the electric charge and form an electrostatic latent image, a developing unit for developing the electrostatic latent image by applying a developing solution to the plate material, the developing unit being located at the lowest position in a convey path, and including an arcuated pair of electrodes through which the plate material passes and to which a predetermined voltage is applied, a developing solution concentration sensor having detachable special cells and using a light-emitting diode, and a squeezing roller pair for squeezing out an excess developing solution from the developed plate material, the developing solution being sprayed on a surface of the squeezing roller to prevent the surface thereof from being dried, a fixing unit for drying the developed plate material with hot air, and fixing the developed plate-making image.

    摘要翻译: 一种激光制版装置,包括一个一个一个地供给平板材料的防湿纸进给盒,每个具有一个感光层,用一个电荷对该板材充电的一个充电器,一个曝光单元, 充电,使用根据制版图像调制的激光束部分中和电荷并形成静电潜像;显影单元,用于通过将显影溶液施加到平板材料来显影静电潜像;显影单元 位于传送路径中的最低位置,并且包括弧形的电极对,板材通过该对电极并施加预定电压,具有可拆卸的特殊电池并使用发光二极管的显影液浓度传感器, 以及用于从显影板挤出过量显影液的挤压辊对 将显影溶液喷在挤压辊的表面上以防止其表面干燥,用热空气干燥显影板材的定影单元和固定显影的制版图像。

    Ink supply device for an inking type wire dot printer
    2.
    发明授权
    Ink supply device for an inking type wire dot printer 失效
    供墨装置用于墨水型点阵打印机

    公开(公告)号:US4545694A

    公开(公告)日:1985-10-08

    申请号:US516894

    申请日:1983-07-25

    CPC分类号: B41J2/305 B41J2/255

    摘要: An ink supply device for an inking type dot matrix printer wherein an ink occlusion body as an ink dipping portion is provided at the extreme end of a printing head, printing wires are inserted through the ink occlusion body to dip tips of the printing wires in ink, and dot-like characters are printed on a sheet of recording paper with the ink. In the ink supply device, the ink occlusion body has an ink occlusion body mounted on the lower surface thereof in a required spaced relation and a pair of detection electrodes for detection of a quantity of ink in a way that a portion thereof is positioned in said space. Each detection electrode is partly in pressure contact with the ink occlusion body. It is controlled so that when a critical output signal generated when detection electrodes are directly connected by ink overflown as the result of a sufficient supply of ink to the ink occlusion body varies, upper and lower limit values for controlling a supply of ink are set so that an optimal quantity of ink may be always supplied to the ink occlusion body.

    摘要翻译: 一种用于墨水型点阵打印机的墨水供应装置,其中作为墨水浸渍部分的墨水吸收体设置在打印头的最末端,印刷丝线通过墨水吸收体插入墨水中以将印刷丝线的尖端浸入墨水 ,并且在墨水的一张记录纸上印上点状字符。 在供墨装置中,油墨闭塞体具有以所需间隔的关系安装在其下表面上的油墨闭塞体,以及一对检测电极,用于检测一定量的油墨,使其中的一部分位于所述 空间。 每个检测电极部分地与油墨闭塞体压力接触。 控制使得当由于足够的油墨供应到油墨堵塞体而导致检测电极直接连接墨水溢出时产生的关键输出信号变化时,将用于控制油墨供应的上下限值设定为 可以总是向油墨闭塞体供给最佳量的油墨。