Copy contrast and density control
    1.
    发明授权
    Copy contrast and density control 失效
    复制对比度和浓度控制

    公开(公告)号:US4350435A

    公开(公告)日:1982-09-21

    申请号:US137149

    申请日:1980-04-04

    CPC分类号: G03G15/50

    摘要: For use with a copier, apparatus is provided for selecting one of a plurality of sets for adjusting the contrast and density of copies. Each set defines a particular Din/Dout response curve. The apparatus includes a stored matrix of such sets with each set having at least three different values relating to: voltage Vo applied onto the photoconductor by the primary charger, copier exposure Eo, and bias voltage V.sub.B applied to a development station electrode. The operator designates a particular set and logic and control means, adjusts Vo, Eo, and V.sub.B in accordance with the designated set values, and causes the copier to have a particular Din/Dout response curve.

    摘要翻译: 为了与复印机一起使用,提供了用于选择多个组中的一个以调整复印件的对比度和浓度的设备。 每个集合定义特定的Din / Dout响应曲线。 该装置包括这样的集合的存储矩阵,其中每个集合具有至少三个不同的值,涉及:通过主充电器施加到光电导体上的电压Vo,复印机曝光Eo和施加到显影站电极的偏置电压VB。 操作人员指定一个特定的设置和逻辑和控制装置,根据指定的设定值调节Vo,Eo和VB,并使复印机具有特定的Din / Dout响应曲线。