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    IMAGE FORMING APPARATUS AND IMAGE DENSITY DETECTING METHOD
    1.
    发明申请
    IMAGE FORMING APPARATUS AND IMAGE DENSITY DETECTING METHOD 有权
    图像形成装置和图像密度检测方法

    公开(公告)号：US20120229866A1

    公开(公告)日：2012-09-13

    申请号：US13415082

    申请日：2012-03-08

    申请人： Susumu MIYAZAKI ,  Izumi KINOSHITA ,  Motohiro KAWANABE ,  Takeshi SHIKAMA ,  Takuhei YOKOYAMA ,  Tatsuya MIYADERA

    发明人： Susumu MIYAZAKI ,  Izumi KINOSHITA ,  Motohiro KAWANABE ,  Takeshi SHIKAMA ,  Takuhei YOKOYAMA ,  Tatsuya MIYADERA

    IPC分类号： H04N1/405

    CPC分类号： H04N1/3878 ,  H04N1/407 ,  H04N1/409

    摘要： An image forming apparatus performs pseudo gradation processing using dithering, and includes an image carrier; a plurality of light-emitting element arrays arranged in a main-scanning direction and including a plurality of light-emitting elements; an image forming unit performing lighting control of the arrays and forming a pattern image on the image carrier; a detecting unit detecting a density of the pattern image; a position detecting unit detecting a position in the main-scanning direction of the detecting unit with respect to the light-emitting element arrays; a determining unit that, based on the detected position, determines whether the detecting unit is positioned at a proper detection position with respect to the pattern image on which noise has no effect; and an operation control unit that, when the detecting unit is positioned at the proper detection position, performs an image density detection operation on the pattern image using the detecting unit.

    摘要翻译： 图像形成装置使用抖动进行伪灰度处理，并且包括图像载体; 沿主扫描方向排列并包括多个发光元件的多个发光元件阵列; 图像形成单元，对所述阵列执行点亮控制，并在所述图像载体上形成图案图像; 检测单元，检测图案图像的浓度; 位置检测单元，相对于所述发光元件阵列检测所述检测单元的主扫描方向的位置; 确定单元，其基于所检测的位置，确定所述检测单元是否位于相对于其上没有影响的图案图像的适当检测位置; 以及操作控制单元，当所述检测单元位于适当的检测位置时，使用所述检测单元对所述图案图像执行图像浓度检测操作。

    IMAGE FORMING APPARATUS AND METHOD FOR CONTROLLING THE SAME
    2.
    发明申请
    IMAGE FORMING APPARATUS AND METHOD FOR CONTROLLING THE SAME 有权
    图像形成装置及其控制方法

    公开(公告)号：US20130242318A1

    公开(公告)日：2013-09-19

    申请号：US13782248

    申请日：2013-03-01

    申请人： Akinori YAMAGUCHI ,  Masayuki HAYASHI ,  Hiroaki IKEDA ,  Kunihiro KOMAI ,  Tatsuya MIYADERA ,  Takeshi SHIKAMA ,  Takuhei YOKOYAMA ,  Yoshinori SHIRASAKI ,  Motohiro KAWANABE

    发明人： Akinori YAMAGUCHI ,  Masayuki HAYASHI ,  Hiroaki IKEDA ,  Kunihiro KOMAI ,  Tatsuya MIYADERA ,  Takeshi SHIKAMA ,  Takuhei YOKOYAMA ,  Yoshinori SHIRASAKI ,  Motohiro KAWANABE

    IPC分类号： G06K15/02

    CPC分类号： G06K15/1878 ,  G03G15/5058 ,  G03G2215/0141

    摘要： In the invention, an inclination amount of sensors is reflected in positional deviation correction patterns, and for correcting formation positions of images of various colors, the positional deviation correction patterns are formed on a conveying belt. The positional deviation correction patterns are detected by the sensors. A control unit calculates positional deviation correction amounts based on detection results of the positional deviation correction patterns. Based on the calculated positional deviation correction amounts, the control unit performs calculation for correcting the positional deviation correction patterns, and cancels the inclination amount reflected in the calculation results to obtain final positional deviation correction amounts. Skew correction is performed based on the final positional deviation correction amounts, and thus, the positional deviations are corrected.

    摘要翻译： 在本发明中，传感器的倾斜量反映在位置偏差校正图案中，并且为了校正各种图像的形成位置，在输送带上形成位置偏差校正图案。 位置偏差校正图案由传感器检测。 控制单元基于位置偏差校正图案的检测结果来计算位置偏差校正量。 基于所计算的位置偏差校正量，控制单元进行用于校正位置偏差校正图案的计算，并且取消反映在计算结果中的倾斜量，以获得最终位置偏差校正量。 基于最终位置偏差校正量执行偏斜校正，因此校正位置偏差。

    LINE-HEAD CONTROL DEVICE, IMAGE FORMING APPARATUS, AND LINE-HEAD CONTROL METHOD
    5.
    发明申请
    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：US20120154827A1

    公开(公告)日：2012-06-21

    申请号：US13300834

    申请日：2011-11-21

    申请人： Yoshinori SHIRASAKI ,  Izumi KINOSHITA ,  Kunihiro KOMAI ,  Tatsuya MIYADERA ,  Takeshi SHIKAMA ,  Takuhei YOKOYAMA ,  Akinori YAMAGUCHI

    发明人： Yoshinori SHIRASAKI ,  Izumi KINOSHITA ,  Kunihiro KOMAI ,  Tatsuya MIYADERA ,  Takeshi SHIKAMA ,  Takuhei YOKOYAMA ,  Akinori YAMAGUCHI

    IPC分类号： G06K15/02 ,  G06F15/00

    CPC分类号： G06K15/1247 ,  G06K15/1223 ,  G06K15/1868

    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。