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    • 4. 发明授权
    • Image writing device, image forming apparatus, and image writing method
    • 图像写入装置,图像形成装置和图像写入方法
    • US09310710B2
    • 2016-04-12
    • US14632188
    • 2015-02-26
    • Masashi SuzukiKoichi MurotaTatsuo OhyamaYuichiro ShukuyaTatsuya Miyadera
    • Masashi SuzukiKoichi MurotaTatsuo OhyamaYuichiro ShukuyaTatsuya Miyadera
    • G03G15/043
    • G03G15/043
    • An image writing device includes an exposure device to repeatedly expose a surface of an image bearer along a main-scanning direction during an image forming period to write an image on the image bearer, a speed change detector to detect a change in moving speed in a sub-scanning direction of the surface of the image bearer, a first signal generation circuit to generate a first signal, an image forming period signal generation circuit to generate an image forming period signal synchronously with the first signal, a second signal generation circuit to generate a second signal, the second signal initially appearing in the image forming period being in synchronization with the first signal, and a line synchronization signal generation circuit to generate a line synchronization signal synchronously with the second signal and transmit the line synchronization signal to the exposure device during the image forming period.
    • 一种图像写入装置,包括:曝光装置,用于在图像形成期间沿图像载体的主扫描方向反复曝光以在图像载体上写入图像;速度变化检测器,用于检测图像载体中的移动速度的变化; 图像载体表面的副扫描方向,产生第一信号的第一信号产生电路,与第一信号同步产生图像形成周期信号的图像形成周期信号产生电路,产生第二信号产生电路 第二信号,最初出现在图像形成周期中的第二信号与第一信号同步;线同步信号产生电路,用于与第二信号同步产生线路同步信号,并将线路同步信号发送到曝光装置 在图像形成期间。
    • 6. 发明授权
    • Optical writing controller, image forming apparatus, and optical writing control method
    • 光学写入控制器,图像形成装置和光学写入控制方法
    • US09041756B2
    • 2015-05-26
    • US14338412
    • 2014-07-23
    • Tatsuya Miyadera
    • Tatsuya Miyadera
    • B41J2/385B41J2/435B41J2/47G03G15/043G03G15/01
    • G03G15/043G03G15/011G03G15/0189G03G15/5058G03G2215/0161
    • An optical writing controller that controls a light source to expose a photoconductor and forms an electrostatic latent image on the photoconductor calculates a correction value for correcting a superimposing position where the developed images for different colors developing each of the electrostatic latent images formed on each of the multiple photoconductors are superimposed based on the detection signal output by a pattern detection sensor that detects a pattern for correcting the superimposing position, controls the multiple light sources to draw a predetermined pattern repeatedly in the sub-scanning direction so that stepwise patterns whose width in the main scanning direction varies with repetition are formed, and determines the width in the main scanning direction of the patterns for correcting based on the strength of the detection signal output by the pattern detection sensor.
    • 控制光源曝光光电导体并在感光体上形成静电潜像的光学写入控制器计算修正值,用于校正叠加位置,其中显影各种不同颜色的显影图像,以形成每个静电潜像 基于由检测用于校正叠加位置的图案的图案检测传感器输出的检测信号叠加多个感光体,控制多个光源在副扫描方向上重复地绘制预定图案,使得在 主扫描方向随着重复而变化,并且基于由图案检测传感器输出的检测信号的强度来确定用于校正的图案的主扫描方向上的宽度。