公开(公告)号：US20140139581A1

公开(公告)日：2014-05-22

申请号：US14159696

申请日：2014-01-21

Applicant: OCE-TECHNOLOGIES B.V.

Inventor： Carolus E.P. GERRITS ,  Sebastian P.R.C. DE SMET ,  Alexander LINT

IPC: B41J2/045

CPC classification number: B41J2/04501 ,  B41J2/2139 ,  B41J2/2142

Abstract: A reproduction apparatus for printing a digital image includes a control unit and a print engine. The digital image is constituted of pixels, each having assigned a pixel value. The print engine includes print elements for ejecting an amount of marking material on a receiving material according to a pixel value. The reproduction apparatus includes a detector for detecting a failing print element and the control unit includes a derivation unit for deriving, before printing of the digital image for a print element, at least one array of pixel values to be printed by at least one other print element, upon detection of a failing of the print element by the detector. A merging unit is configured to merge at least one of the at least one array of pixel values with the digital image, upon detection of a failing print element, for creating a corrected digital image.

Abstract translation: 用于打印数字图像的再现装置包括控制单元和打印引擎。 数字图像由分别具有像素值的像素构成。 打印引擎包括用于根据像素值在接收材料上弹出标记材料量的打印元件。 再现设备包括用于检测故障打印元件的检测器，并且控制单元包括导出单元，用于在印刷打印元件的数字图像之前导出至少一个要通过至少一个其它打印印刷的像素值阵列 当检测器检测到打印元件的故障时， 合并单元被配置为在检测到故障打印元件时，将所述至少一个像素值阵列中的至少一个与数字图像合并，以创建校正的数字图像。

公开(公告)号：US20140176633A1

公开(公告)日：2014-06-26

申请号：US14189738

申请日：2014-02-25

Applicant: OCE-TECHNOLOGIES B.V.

Inventor： Carolus E.P. GERRITS

IPC: B41J2/07

CPC classification number: B41J2/07 ,  B41J2/2142 ,  B41J29/393

Abstract: A method of printing a spit pattern for an inkjet printer includes selecting a dot distance between dots of the spit pattern, selecting at least a sub-matrix of a dither matrix of entries arranged in rows and columns, constructing a bi-level bitmap of the same size as the sub-matrix, splitting each column of the bi-level bitmap which has more than one entry having a value of one into a number of columns such that each column of the number of columns comprises one entry having a value of one, removing each column of the bi-level bitmap which has no entry having a value of one, extracting the row and column number of each entry of the bi-level bitmap having a value of one, adapting the row number of each extracted entry in accordance with the dot distance, and printing the spit pattern.

Abstract translation: 打印喷墨打印机的喷墨图案的方法包括：选择喷墨图案的点之间的点距离，至少选择以行和列排列的条目的抖动矩阵的子矩阵，构成二维位图 与子矩阵相同的大小，将具有多于一个具有值为1的条目的双级位图的每一列分成多个列，使得列数的每列包括具有值1的一个条目 删除没有值为1的条目的双级位图的每列，提取具有值为1的双级位图的每个条目的行数和列数，使每个提取的条目的行号适应 根据点距离，并打印吐痰图案。

公开(公告)号：US20160100079A1

公开(公告)日：2016-04-07

申请号：US14876396

申请日：2015-10-06

Applicant: OCE-TECHNOLOGIES B.V.

Inventor： Carolus E.P. GERRITS ,  Johannes H. HUYGHEN

IPC: H04N1/405 ,  H04N1/52

CPC classification number: H04N1/4055 ,  H04N1/40087 ,  H04N1/4015 ,  H04N1/52

Abstract: An image processing module for processing a digital M-level input image into a digital N-level output image is provided, wherein M>N and N>2, a level being indicative of a colorant density in a printing process. The module applies N-1 thresholds for determining an output level for each image element with an input level, wherein thresholds associated with a transition between two output levels are arranged in a threshold matrix, all N-1 threshold matrices being arranged in accordance with a single basic threshold matrix arrangement. The image processing module comprises threshold matrices, wherein the thresholds have been adjusted to compensate printed density variations except the thresholds associated with a transition between a first and a second level, which have not been adjusted in order to keep a number of colorant receiving print positions constant.

Abstract translation: 提供了一种用于将数字M级输入图像处理成数字N级输出图像的图像处理模块，其中M> N和N> 2，其水平表示印刷处理中的着色剂浓度。 该模块应用N-1个阈值以确定具有输入电平的每个图像元素的输出电平，其中与两个输出电平之间的转换相关联的阈值被布置在阈值矩阵中，所有N-1个阈值矩阵根据 单一基本阈值矩阵排列。 图像处理模块包括阈值矩阵，其中已经调整阈值以补偿除了与第一和第二水平之间的转变相关联的阈值之外的印刷密度变化，这些阈值尚未被调整以便保持着色剂的数量接收打印位置 不变。