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    • 1. 发明申请
    • METHOD FOR DETECTING ERRORS IN INDIVIDUAL COLOR SEPARATION IMAGES OF A MULTI-COLOR PRINTING MACHINE
    • 用于检测多色打印机个性色彩分离图像中的错误的方法
    • WO2009121637A1
    • 2009-10-08
    • PCT/EP2009/050678
    • 2009-01-22
    • EASTMAN KODAK COMPANYBONESS, JanDREHER, IngoHUNOLD, HeikoJACHMANN, RalfPETERSEN, RalphPIEREL, FranckSCHRADER, StefanWECKER, MatthiasDAVIS, Tim
    • BONESS, JanDREHER, IngoHUNOLD, HeikoJACHMANN, RalfPETERSEN, RalphPIEREL, FranckSCHRADER, StefanWECKER, MatthiasDAVIS, Tim
    • G03G15/01
    • G03G15/0194G03G15/161G03G15/5054G03G2215/00059G03G2215/0161
    • A method for detecting errors in individual color separation images of a multi-color printing machine, in particular an electrophotographic printing machine, comprising a plurality of printing units, is described. Using this method, first a plurality of first register lines is printed with a first printing unit, and a plurality of second register lines is printed with a second printing unit in such a manner that each of the first register lines, together with one of said second register lines, is positioned inside a respective registration frame. Then the plurality of the first and second register lines in the respective registration frame are detected with a register sensor, and an output signal of the register sensor relating to the respective second register line is compared with an intensity threshold value in order to determine whether the second register lines can be recognized. In an alternative embodiment of the method, a plurality of the first register lines is printed with a first printing unit in such a manner that each of the first register lines is printed within a respective registration frame. Subsequently, the plurality of the first register lines in the respective registration frames is detected with a register sensor, and an output signal of the register sensor relating to the respective first register lines is compared with a pre-specified intensity threshold value in order to determine whether the first register lines are recognizable.
    • 描述了一种用于检测包括多个印刷单元的多色印刷机,特别是电子照相印刷机的单独色彩分离图像中的错误的方法。 使用该方法,首先使用第一打印单元打印多个第一寄存器行,并且以第二打印单元打印多个第二寄存器行,使得第一寄存器行与所述第一寄存器行中的一个一起 第二寄存器线位于相应的配准框内。 然后,利用寄存器传感器检测相应登记帧中的多个第一和第二寄存器线,并将与相应的第二寄存器线相关的寄存器传感器的输出信号与强度阈值进行比较,以便确定是否 可以识别第二个寄存器行。 在该方法的替代实施例中,多个第一寄存器行以第一打印单元打印,使得每个第一寄存器行被打印在相应的配准帧内。 随后,用寄存器传感器检测各个登记帧中的多个第一寄存器行,并将与各个第一寄存器行有关的寄存器传感器的输出信号与预定的强度阈值进行比较,以便确定 第一个寄存器行是否可识别。
    • 7. 发明申请
    • IMAGE FORMING APPARATUS
    • 图像形成装置
    • WO2011142472A1
    • 2011-11-17
    • PCT/JP2011/061129
    • 2011-05-10
    • RICOH COMPANY, LIMITEDTOMITA, Kentaroh
    • TOMITA, Kentaroh
    • G03G15/01G03G15/00
    • G03G15/5058G03G15/0131G03G2215/00059G03G2215/00063G03G2215/0129G03G2215/0164
    • An image forming apparatus includes a control unit configured to perform, if a suitable color measurement area suitable for color measurement of a combined color is found in an image, a color-reproduction-accuracy increasing process while, if not, to perform a deposition-amount stabilizing process. In the color-reproduction-accuracy increasing process, a control parameter is adjusted so as to reduce a difference between a result of the color measurement on the suitable color measurement area and a desired color. In the deposition-amount stabilizing process, a plurality of test primary-color toner images are formed by an image forming unit, and a control parameter for the image forming unit are adjusted so as to reduce a difference between each of results of toner deposition amount measurement on the test primary-color toner images and a corresponding target deposition amount.
    • 图像形成装置包括:控制单元,被配置为如果在图像中发现适合于组合颜色的颜色测量的合适的颜色测量区域,则执行色彩再现精度增加处理,而如果不执行沉积 - 量稳定过程。 在色彩再现精度提高过程中,调节控制参数,以便减少合适的颜色测量区域上的颜色测量结果与期望颜色之间的差异。 在沉积量稳定化处理中,通过图像形成单元形成多个测试原色调色剂图像,并且调整图像形成单元的控制参数,以便减少调色剂沉积量的每个结果之间的差异 对测试的原色调色剂图像进行测量和相应的目标沉积量。
    • 10. 发明申请
    • METHOD AND DEVICE FOR ADJUSTING TONER CONCENTRATION IN AN ELECTROGRAPHIC PROCESS
    • 方法和设备调整调色剂浓度的过程电图
    • WO00041038A1
    • 2000-07-13
    • PCT/EP1999/010465
    • 1999-12-29
    • G03G15/00G03G15/08G03G15/16
    • G03G15/5041G03G15/0189G03G15/0849G03G15/0855G03G15/238G03G2215/00059
    • The invention relates to a method for adjusting an electrographic printing or copying process. Information to be printed is generated as a toner intermediate image on a support for intermediate images (4, 122, 130, 136, 144) and is subsequently transmitted from a reprinting surface (130, 144) to a recording medium (2, 114) in a reprinting zone (5, 132, 146). A toner mark is produced on a electrographic support for intermediate images (4, 130, 144). Said toner mark is at least partially scanned on the support for intermediate images (4, 122, 136) and then removed from the support for intermediate images (4, 122, 136). The toner concentration is adjusted in a developing station (8) by means of the measured value. Transfer of the toner intermediate image from the reprinting surface (130, 144) to the recording medium (2, 114) is at least temporarily prevented in the period between the production and the removal of the toner mark. The invention especially provides two operating states.
    • 用于控制eletrografischen打印或复印过程的方法,其中信息将被打印为中间图像载体上的中间调色剂图像(4,122,130,136,144)被产生,并且在后面的转印印刷区域(5,132,146)是由描述 转印表面(130,144)的记录介质(2,114)上传送的。 在这种情况下,电子照相中间图像载体(130,144 4)上产生的调色剂标记,中间图像载体(4,122,136)的区域中至少采样和调色剂标记,随后Zwischenbilträger(4,122,136)上的调色剂标记被删除。 与测得的值,调色剂浓度控制在一个显影剂站(8)。 中间调色剂图像从所述记录介质(2,114)上转印印刷表面(130,144)传送至少暂时防止了生成和除去的调色剂标记的之间的时间段。 特别是两个操作状态的本发明创建的。