Line-head control device, image forming apparatus, and line-head control method
    14.
    发明授权
    Line-head control device, image forming apparatus, and line-head control method 有权
    线头控制装置,图像形成装置和线头控制方法

    公开(公告)号:US08817320B2

    公开(公告)日:2014-08-26

    申请号:US13300834

    申请日:2011-11-21

    IPC分类号: G06F15/00 G06K15/12 G06K15/02

    摘要: A line-head control device that controls a line head includes: a calculation unit that divides image data into a plurality of areas in sub-scanning direction and calculates a printing percentage for each of the areas; an allocation unit that allocates a total correction amount, for correcting magnification of the image data in the sub-scanning direction, to the areas according to the printing percentage for each of the areas calculated by the calculation unit; and a control unit that changes an emission period of the light emitted from the line head so as to satisfy a partial correction amount that is an allocation of the total correction amount to each of the areas, exposes the image carrier to the light emitted from the line head with the changed light emission period, thereby causing a latent image to be formed on the image carrier based on the image data.

    摘要翻译: 控制行头的行头控制装置包括:计算单元,其将图像数据分割成副扫描方向的多个区域,并计算每个区域的打印百分比; 分配单元,其分配用于将副扫描方向上的图像数据的倍率校正到根据由计算单元计算出的每个区域的打印百分比的区域的总校正量; 以及控制单元,其改变从线路头发射的光的发射周期以满足作为对每个区域的总校正量的分配的部分校正量,将图像载体暴露于从 具有改变的发光周期的线头,从而基于图像数据在图像载体上形成潜像。

    Image processing apparatus, image processing method, and computer program product for image processing
    17.
    发明授权
    Image processing apparatus, image processing method, and computer program product for image processing 失效
    图像处理装置,图像处理方法以及用于图像处理的计算机程序产品

    公开(公告)号:US08659630B2

    公开(公告)日:2014-02-25

    申请号:US13230065

    申请日:2011-09-12

    IPC分类号: B41J2/415 G03G13/04

    摘要: An embodiment of the image processing apparatus for controlling the lighting of a line head that is driven with binary data and performs exposure with subline lighting to thereby form images, includes: a subline generating unit that generates a plurality of sublines from a same image data; an inclination correcting unit that exposes the generated sublines so as to generate correction image data used to correct an inclination of an exposure position; a gradation control unit that controls the lighting of sublines based on the correction image data generated by the inclination correcting unit to express gradation; and a light intensity correction unit that corrects and controls the light intensity based on the correction image data generated by the inclination correcting unit, wherein an output of the gradation control unit and an output of the light intensity correction unit are input into the line head in parallel.

    摘要翻译: 用于控制用二进制数据驱动的线头照明的图像处理装置的实施例,并且利用子线照明进行曝光从而形成图像,包括:从线图生成单元,从同一图像数据生成多个子线; 倾斜校正单元,其暴露所生成的子线以产生用于校正曝光位置的倾斜度的校正图像数据; 灰度控制单元,其基于由倾斜校正单元生成的校正图像数据来控制子系列的点亮以表示灰度; 以及光强度校正单元,其基于由倾斜校正单元生成的校正图像数据校正和控制光强度,其中灰度控制单元的输出和光强度校正单元的输出被输入到行头中 平行。

    Optical writing device, image forming apparatus, and method and program product for controlling optical writing device
    18.
    发明授权
    Optical writing device, image forming apparatus, and method and program product for controlling optical writing device 有权
    光写入装置,图像形成装置以及用于控制光写入装置的方法和程序产品

    公开(公告)号:US08411124B2

    公开(公告)日:2013-04-02

    申请号:US13224987

    申请日:2011-09-02

    IPC分类号: B41J2/435 B41J2/47 B41J2/45

    CPC分类号: G06K15/1247

    摘要: A pixel information acquiring unit acquires multilevel pixel information in which one pixel is expressed in multilevel scales. A line pixel information storing unit stores the multilevel pixel information for each main scanning line. A light emission control unit optically exposes a photosensitive element by controlling a 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 an 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: 像素信息获取单元获取其中以多级尺度表示一个像素的多级像素信息。 线像素信息存储单元存储每条主扫描线的多级像素信息。 光发射控制单元通过基于多级像素信息控制二进制光源光学曝光光敏元件。 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 以原始决议。 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 AND PROGRAM PRODUCT FOR CONTROLLING OPTICAL WRITING DEVICE
    19.
    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。

    Light emission control device, light emission control method, and image forming apparatus
    20.
    发明授权
    Light emission control device, light emission control method, and image forming apparatus 失效
    发光控制装置,发光控制方法和图像形成装置

    公开(公告)号:US08547409B2

    公开(公告)日:2013-10-01

    申请号:US13307865

    申请日:2011-11-30

    IPC分类号: B41J2/435

    摘要: A light emission control device images an electrostatic latent image on a photosensitive element by a plurality of light emitting elements corresponding to a line in a second direction perpendicular to a first direction which is a rotational direction the photosensitive element. The light emission control device includes: a detecting unit that detects a rotational position of the photosensitive element, in the first direction, corresponding to a line in the second direction; an acquiring unit that acquires a distance between the light emitting elements and the rotational position of the photosensitive element in the first direction detected by the detecting unit; and a control unit that controls light emission by the light emitting elements according to the distance acquired by the acquiring unit and corrects a fluctuation in a density of a visible image converted from the electrostatic latent image.

    摘要翻译: 发光控制装置通过与作为感光元件的旋转方向的第一方向垂直的第二方向上的线对应的多个发光元件将感光元件上的静电潜像成像。 发光控制装置包括:检测单元,其在与第二方向上的线对应的第一方向上检测感光元件的旋转位置; 获取单元,其获取由所述检测单元检测到的所述发光元件与所述感光元件在所述第一方向上的旋转位置之间的距离; 以及控制单元,其根据由所述获取单元获取的距离来控制所述发光元件的发光,并校正从所述静电潜像转换的可见图像的浓度的波动。