Image forming apparatus and method having gradation control in a dense
area in which gradation characteristics are non-linear
    82.
    发明授权
    Image forming apparatus and method having gradation control in a dense area in which gradation characteristics are non-linear 失效
    在灰度特性是非线性的密集区域中具有灰度控制的图像形成装置和方法

    公开(公告)号:US5566372A

    公开(公告)日:1996-10-15

    申请号:US410372

    申请日:1995-03-24

    CPC分类号: H04N1/4078 G03G15/5062

    摘要: An image forming apparatus performs excellent gradation control in a dense area in which gradation characteristics are non-linear. The image forming apparatus has a pattern forming unit which forms a gradation pattern on a recording member, and a read unit which reads the gradation pattern formed by the pattern forming unit. An adjusting unit adjusts image forming conditions on the basis of the gradation pattern read by the pattern read unit. In a density area in which gradation characteristics are non-linear, the number of steps of the gradation pattern is set to be larger than that in another density area.

    摘要翻译: 图像形成装置在灰度特性是非线性的密集区域中执行优异的灰度控制。 图像形成装置具有在记录构件上形成渐变图案的图案形成单元和读取由图案形成单元形成的渐变图案的读取单元。 调整单元基于由图案读取单元读取的灰度图案来调整图像形成条件。 在灰度特性为非线性的浓度区域中,灰度图案的步数被设定为大于其他浓度区域的步数。