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    • 39. 发明申请
    • IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD AND PROGRAM
    • 图像处理设备,图像处理方法和程序
    • WO2012060432A1
    • 2012-05-10
    • PCT/JP2011/075363
    • 2011-10-27
    • CANON KABUSHIKI KAISHATAKIGAWA, YoichiKUBO, HidekiOCHIAI, Takashi
    • TAKIGAWA, YoichiKUBO, HidekiOCHIAI, Takashi
    • B41J2/44G03G15/00
    • H04N1/40093G03G15/043G06K15/1209G06K15/1219
    • There is provided an image forming apparatus comprising: detection means for detecting position information indicating a scanning position; interval prediction means for predicting a first scanning line interval indicating a distance in the sub-scanning direction between the scanning line of interest and a succeeding scanning line to be scanned after the scanning line of interest; interval calculation means for calculating, by using the position information held by the holding means, a second scanning line interval indicating a distance in the sub-scanning direction between the scanning line of interest and the scanned scanning line; and rate calculation means for calculating a correction rate on an exposure amount for the scanning line of interest so that a predicted density calculated using the first scanning line interval and the second scanning line interval matches with a predicted density calculated using a predetermined reference scanning line interval.
    • 提供了一种图像形成装置,包括:检测装置,用于检测指示扫描位置的位置信息; 间隔预测装置,用于在感兴趣的扫描线之后,预测指示扫描线之间的副扫描方向上的距离与待扫描的扫描线之间的距离的第一扫描行间隔; 间隔计算装置,用于通过使用由保持装置保持的位置信息来计算指示在扫描扫描线和扫描扫描线之间的副扫描方向上的距离的第二扫描线间隔; 以及速率计算装置,用于计算关于所述扫描线的曝光量的校正速率,使得使用所述第一扫描行间隔和所述第二扫描行间隔计算的预测浓度与使用预定参考扫描行间隔计算的预测浓度相匹配 。
    • 40. 发明申请
    • METHOD AND APPARATUS FOR MINIMIZING VISUAL ARTIFACTS GENERATED BY AN ELECTROPHOTOGRAPHIC MACHINE DURING IMAGING
    • 用于最小化成像期间电子照相机产生的视觉艺术的方法和装置
    • WO01088626A1
    • 2001-11-22
    • PCT/US2001/015618
    • 2001-05-15
    • B41J2/44G03G15/04G06K15/12H04N1/04H04N1/047H04N1/113H04N1/12H04N1/23G03G15/01H04N1/00
    • H04N1/0473G06K15/1209H04N1/1135H04N1/12H04N2201/04767H04N2201/04787H04N2201/04791H04N2201/04793H04N2201/04796
    • A method and apparatus provides for minimizing visual artifacts resulting from laser scan process direction position errors in an electrophotographic machine (10). The electrophotographic machine has defined therein a process direction (46), and includes a photoconductive device (28) having an image forming surface (28a). A printhead unit (12) is provided for generating a laser beam (38), wherein the printhead unit includes optics for scanning the laser beam to form a plurality of scan lines (72, 74, 76, 78, 80) extending across the photoconductive device in a scan direction (81) which traverses the process direction. Adjacent scan lines of the plurality of scan lines are separated by a scan line separation distance. A controller (64) is electrically coupled to the printhead unit for controlling the power of the laser beam during scanning of an adjacent pair of scan lines to form a synthesized dot (82) which lies at a synthesized position between the adjacent pair of scan lines.
    • 一种方法和装置提供了使电子照相机(10)中的激光扫描过程方向位置误差产生的视觉伪像最小化。 电子照相机在其中限定了处理方向(46),并且包括具有图像形成表面(28a)的光电导装置(28)。 提供了一种用于产生激光束(38)的打印头单元(12),其中打印头单元包括用于扫描激光束以形成跨越光电导体的多条扫描线(72,74,76,78,80)的光学器件 装置沿扫描方向(81)移动。 多条扫描线的相邻扫描线被扫描线分离距离分开。 控制器(64)电耦合到打印头单元,用于在相邻的一对扫描线的扫描期间控制激光束的功率,以形成位于相邻扫描线对之间的合成位置的合成点(82) 。