Image forming apparatus controlled by a plurality of image density
detectors
    12.
    发明授权
    Image forming apparatus controlled by a plurality of image density detectors 失效
    由多个图像浓度检测器控制的图像形成装置

    公开(公告)号:US4674863A

    公开(公告)日:1987-06-23

    申请号:US637792

    申请日:1984-08-06

    IPC分类号: G03F7/20 G03G15/00

    摘要: An improved image forming apparatus for controlling image density at an optimum level. The image forming apparatus has a plurality of detectors for detecting an original image density. The detectors have mutually different detecting characteristics, wherein image forming conditions are controlled based on the outputs of the detectors. Control may be effected in accordance with a comparison of the detected values, and in accordance with a selected operation mode.

    摘要翻译: 一种用于以最佳水平控制图像浓度的改进的图像形成装置。 图像形成装置具有用于检测原始图像浓度的多个检测器。 检测器具有相互不同的检测特性,其中基于检测器的输出来控制图像形成条件。 可以根据检测值的比较,并根据所选择的操作模式进行控制。

    Image reproducing apparatus controlled in response to detected density
of an original image
    14.
    发明授权
    Image reproducing apparatus controlled in response to detected density of an original image 失效
    响应于检测到的原始图像的密度而控制的图像再现装置

    公开(公告)号:US4922296A

    公开(公告)日:1990-05-01

    申请号:US309975

    申请日:1989-02-13

    IPC分类号: G03G15/00

    摘要: An image reproducing apparatus with or without an ADF has an optical system for scanning an original, a developing unit, a fixing unit, a differential amplifier, and a microcomputer. Original image density can be measured properly in any mode of the apparatus. The image is reproduced to have optimal density by a lamp control voltage from the differential amplifier. Toner deficiency or the like can be indicated with a few number or displays and/or indicators. Upon detection of toner deficiency or the like, the current copying cycle is completed first and the apparatus is stopped. The copying operation can be resumed after the toner deficiency or the like is eliminated.

    摘要翻译: 具有或不具有ADF的图像再现装置具有用于扫描原稿的光学系统,显影单元,定影单元,差分放大器和微计算机。 可以在设备的任何模式下正确测量原始图像浓度。 通过来自差分放大器的灯控制电压,再现图像以具有最佳密度。 可以用少数或显示器和/或指示器指示碳粉不足等。 在检测到墨粉不足等时,首先完成当前复印周期,并停止该装置。 在消除了碳粉不足等之后,可以恢复复印操作。