Printing apparatus for maintaining colour sequence when printing
    21.
    发明公开
    Printing apparatus for maintaining colour sequence when printing 有权
    在印刷过程中保持颜色顺序的方法和装置

    公开(公告)号:EP1621353A2

    公开(公告)日:2006-02-01

    申请号:EP05108229.5

    申请日:2001-10-31

    申请人: AGFA-GEVAERT

    摘要: A printer provided with

    an elongated print head (22,23,24,25) with a longitudinal axis, comprising at least a first array (16) of marking elements and a second array (17) of marking elements for printing different colours, each array of marking elements comprising a set of equally spaced active marking elements (12,13,14,15);
    a mechanism to transporting the receiver relative to the printhead in between the printing steps;

    ideal printing efficiency is obtained when a first active marking element of the first array (16) of marking elements (12) of the printhead is spaced apart in the direction of the longitudinal axis from a first active marking element of the second array (17) of marking elements of the printhead (22) over a distance d of at least n/P of a length of an array of marking elements,
    n being an integer larger than 1,
    P being a number of mutually interstitial printing steps used when printing an image.

    摘要翻译: 设置有打印头的细长(22,23,24,25)具有纵向轴线的打印机,其至少包括标记元件的第一阵列(16)和标记用于印刷不同颜色的元件的第二阵列(17),每个 标记包括一组等间隔活性标记元件(12,13,14,15)中的单元阵列; 一种机制,在印刷步骤之间相对于所述打印头的接收器传输; 理想的印刷效率时获得的标记元素的所述打印头的所述第一阵列(16)(12)的第一有源标记元件从第二数组的第一有源标记元件间隔开在纵向轴线的方向(17) 的标记在标记元件中,n在大于1的整数作为一个阵列的长度的至少N / P的距离d的打印头(22)的元素,被一些相互间质印刷步骤中使用的p如果在印刷 图像。

    Image forming apparatus
    24.
    发明公开
    Image forming apparatus 失效
    成像设备

    公开(公告)号:EP1134966A3

    公开(公告)日:2001-10-10

    申请号:EP01200675.5

    申请日:1992-05-14

    IPC分类号: H04N1/191

    摘要: A laser beam scanning unit (53) adapted for scanning laser beams on a surface of a charged image bearing member (5) is provided. The laser beam scanning apparatus (53) comprises a semiconductor laser array (21) having a plurality of light emitting portions (21a) and a rotating polygon mirror (3) adapted for deflecting laser beams emitted from the light emitting portions to the image bearing member (5). The light emitting portions (21a) are disposed two-dimensionally on a surface of the semiconductor laser array. The lighting and the amount of light of the light emitting portions (21a) are discretely controlled by a control unit (60).

    摘要翻译: 提供了适于在带电图像承载部件(5)的表面上扫描激光束的激光束扫描单元(53)。 激光束扫描装置(53)包括具有多个发光部分(21a)的半导体激光器阵列(21)和适于将从发光部分发射的激光束偏转到图像承载部件(3)的旋转多面镜(3) (5)。 发光部(21a)二维地配置在半导体激光器阵列的表面上。 通过控制单元(60)离散地控制发光部分(21a)的照明和光量。

    Method and system for interlaced printing
    25.
    发明公开
    Method and system for interlaced printing 失效
    Verfahren und Systemfürverflochtenen Druck

    公开(公告)号:EP0730367A1

    公开(公告)日:1996-09-04

    申请号:EP96300976.6

    申请日:1996-02-13

    发明人: Hickman, Mark S.

    IPC分类号: H04N1/191

    摘要: A two-pass printing method and related printing system are disclosed. In the first pass a checkerboard pattern of 3 X 3 dot clusters are printed. After the first pass, the print medium (38) is advanced and a different group of nozzles is used to print a second pass over the same swath also using 3 X 3 dot clusters in a checkerboard pattern, which dot clusters fill in the interstitial positions left during the first pass. In this manner, all print positions are addressed by the print mode. Image data (46) received from the driver is typically segmented into square halftone cells having eight pixels per side or a multiple of eight pixels per side. The 3 X 3 dot cluster print mode provides a print mask pattern dot width that is not an integer divisor of the typical dither cell dot widths. The disclosed printing method ensures that different nozzles will be used for any pixel location in the repeating dither cells. Thus if any single nozzle is defective, the other functioning nozzle will in part hide the defect.

    摘要翻译: 公开了一种双程打印方法和相关打印系统。 在第一次通过时,打印出3×3个点阵列的棋盘格。 在第一次通过之后,打印介质(38)前进,并且使用不同组的喷嘴来打印相同条纹上的第二遍,也使用棋盘图案中的3×3个点簇,该簇簇填充间隙位置 在第一次通过期间离开 以这种方式,通过打印模式来寻址所有的打印位置。 从驱动器接收的图像数据(46)通常被分割成具有每侧8个像素或每侧8个像素的倍数的正方形半色调单元。 3 X 3点集群打印模式提供了不是典型抖动单元格点宽度的整数除数的打印掩码图案点宽度。 所公开的打印方法确保不同的喷嘴将用于重复抖动单元中的任何像素位置。 因此,如果任何单个喷嘴有缺陷,其他功能的喷嘴将部分地隐藏缺陷。

    Method and system for interlaced printing
    26.
    发明公开
    Method and system for interlaced printing 失效
    隔行打印的方法和系统

    公开(公告)号:EP0730248A1

    公开(公告)日:1996-09-04

    申请号:EP96300975.8

    申请日:1996-02-13

    发明人: Hickman, Mark S.

    IPC分类号: G06K15/10

    摘要: A three-pass printing method and related printing system are disclosed. In the first pass a pattern of 2 X 2 dot clusters are printed. The dot clusters are contiguous in the diagonal position and arranged in diagonal rows. After the first pass, the print medium (38) is advanced and a different group of nozzles are used to print a second pass over the same swath also using 2 X 2 dot clusters in a diagonal row in positions not printed during the first or second pass. A third pattern of 2 X 2 dot clusters is then printed in a third pass in the interstitial positions not printed during either the first or second passes. In this manner, all print positions are addressed by the print mode. The three-pass 2 X 2 dot clusters print mode avoids excessive amounts of data loss resulting from alignment errors between two successive print passes. The print mode also provides a print mask frequency that is not an integer divisor of the typical dither cell sizes. This provides the beneficial result that the print mode mask frequency does not beat with the dither cell frequency. The disclosed printing method ensures that different nozzles will be used for any pixel location in the dither cell. Thus if any single nozzle is defective, the other functioning nozzle will in part hide the defect.

    摘要翻译: 公开了一种三遍印刷方法和相关的印刷系统。 首先打印2×2点群的图案。 点簇在对角位置是连续的,并排列在对角线的行中。 在第一次通过之后,打印介质(38)前进,并且不同组的喷嘴被用于在相同的幅区上打印第二遍也使用在对角线行中的2X2个点簇在第一或第二期间未打印的位置 通过。 然后,在第一遍或第二遍期间未打印的间隙位置的第三遍中打印第二图案的2×2点群。 以这种方式,所有的打印位置都通过打印模式进行寻址。 三遍2×2点群打印模式避免了两次连续打印过程之间的对齐错误导致的数据量过大。 打印模式还提供了不是典型抖动单元尺寸整数除数的打印蒙版频率。 这提供了有利的结果,即打印模式掩模频率不会与抖动单元频率一起跳动。 所公开的印刷方法确保不同的喷嘴将用于抖动单元中的任何像素位置。 因此,如果任何单个喷嘴有缺陷,另一个功能喷嘴将部分隐藏缺陷。

    Recording method and recording apparatus
    30.
    发明公开
    Recording method and recording apparatus 有权
    的记录方法和记录装置

    公开(公告)号:EP2479711A3

    公开(公告)日:2017-04-05

    申请号:EP12151897.1

    申请日:2012-01-20

    IPC分类号: G06K15/10

    摘要: P (fifteen) recording heads are arranged in two columns in a zigzag pattern in a recording unit. The P recording heads are divided into N (two) groups in the sub-scanning direction (up-down direction in the figure). The N (two) controllers respectively control the recording heads pertaining to corresponding groups. Therefore, the number of the boundary (M/S boundary line) of the recording regions (master recording region and slave recording region) of the recording heads controlled by the different controllers becomes at least N-1 (one).
    The N controllers control recording based on fixed data and on variable data such that a variable image based on the variable data does not straddle the boundary of recording regions in the second direction between the recorders controlled by different controllers.