OPTICAL WRITING DEVICE, IMAGE FORMING APPARATUS, AND METHOD AND PROGRAM PRODUCT FOR CONTROLLING OPTICAL WRITING DEVICE
    11.
    发明申请
    OPTICAL WRITING DEVICE, IMAGE FORMING APPARATUS, AND METHOD AND PROGRAM PRODUCT FOR CONTROLLING OPTICAL WRITING DEVICE 有权
    光学写入装置,图像形成装置,以及用于控制光学写入装置的方法和程序产品

    公开(公告)号:US20120056961A1

    公开(公告)日:2012-03-08

    申请号:US13224987

    申请日:2011-09-02

    IPC分类号: B41J2/385

    CPC分类号: G06K15/1247

    摘要: An optical writing device is provided with a pixel information acquiring unit that acquires multilevel pixel information in which one pixel is expressed in multilevel scales, a line pixel information storing unit that stores the multilevel pixel information for each main scanning line, a light emission control unit that optically exposes the photosensitive element by controlling the binary light source on the basis of the multilevel pixel information. The photosensitive element is exposed to the binary light source with a period corresponding to N-fold in a sub scanning direction resolution of the multilevel pixel information, wherein N is a positive integer, so that the N times exposures corresponds to an exposure for one pixel in the original resolution. The switch on/off statuses of the binary light source are controlled in the N times exposures for each pixel, on the basis of lighting rate information for converting the multilevel scales into a lighting rate in the N times exposures.

    摘要翻译: 一种光写入装置,具备:像素信息取得部,取得多像素信息,其中一个像素以多级尺度表示;行像素信息存储部,存储各主扫描线的多级像素信息;发光控制部 通过基于多级像素信息控制二值光源来光学曝光光敏元件。 感光元件以多级像素信息的副扫描方向分辨率对应于N倍的周期曝光到二进制光源,其中N是正整数,使得N次曝光对应于一个像素的曝光 在原来的决议。 基于用于将多级尺转换为N次曝光中的照明率的照明率信息,对于每个像素,在二次曝光的N次曝光中控制二进制光源的开/关状态。

    OPTICAL WRITING DEVICE, IMAGE FORMING APPARATUS, AND METHOD OF CONTROLLING OPTICAL WRITING DEVICE
    16.
    发明申请
    OPTICAL WRITING DEVICE, IMAGE FORMING APPARATUS, AND METHOD OF CONTROLLING OPTICAL WRITING DEVICE 有权
    光学写入装置,图像形成装置以及控制光学写入装置的方法

    公开(公告)号:US20140139607A1

    公开(公告)日:2014-05-22

    申请号:US13683248

    申请日:2012-11-21

    IPC分类号: B41J2/435

    摘要: An optical writing device is configured to form electrostatic latent images on a plurality of photosensitive elements by a plurality of light sources. The optical writing device includes: an image-data acquiring section that acquires image data; and a light-source control section that performs light-emission control on the light source based on pixel data generated from acquired image data, and also performs a neutralization process on the photosensitive element by controlling the light source to expose the photosensitive element to light. In the neutralization process, the light-source control section divides a period during which light-on/off control can be performed on the light source, into sub-periods based on pixel data input to the light-source control section, and causes the light sources to be lit in any one of the sub-periods so as to always place at least one of the plurality of light sources in a light-off state.

    摘要翻译: 光学写入装置被配置为通过多个光源在多个光敏元件上形成静电潜像。 光写入装置包括:图像数据获取部,其获取图像数据; 以及光源控制部,其基于从所获取的图像数据生成的像素数据对光源进行发光控制,并且还通过控制光源将光敏元件曝光以对光敏元件进行中和处理。 在中和处理中,光源控制部根据输入到光源控制部的像素数据,将能够对光源进行点亮/熄灭控制的期间分割成子周期, 在任何一个子周期中要点亮的光源,以便总是将多个光源中的至少一个光源置于熄灭状态。