公开(公告)号：US20140211221A1

公开(公告)日：2014-07-31

申请号：US13753777

申请日：2013-01-30

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Sergio Puigardeu Puigardeu Aramendia ,  Ángel Martínez Barambio ,  M. Isabel Borrell Bayona ,  Luis García Garcia

IPC: G06K15/02

CPC classification number: G06K15/1881 ,  H04N1/4052

Abstract: A page-wide-array printer has a print unit including an array of print-heads, wherein a printing direction is defined by a relative movement between the print unit and a print medium during a printing process. The page-wide-array printer receives a continuous tone image and divides the continuous tone image into a series of slices along a printing direction. Halftone image data is generated from each of the slices using error diffusion halftoning. The error diffusion halftoning comprises processing, with regard to error diffusion, each slice pixel-by-pixel following a processing pattern mainly oriented along a main processing direction which is parallel to the printing direction. The page-wide-array printer prints the halftone image data along the printing direction.

Abstract translation: 页面阵列打印机具有包括打印头阵列的打印单元，其中在打印过程期间通过打印单元和打印介质之间的相对移动来定义打印方向。 页面宽阵列打印机接收连续色调图像，并将连续色调图像沿着打印方向分成一系列切片。 使用误差扩散半色调从每个切片生成半色调图像数据。 误差扩散半色调包括关于误差扩散，按照主要沿着与打印方向平行的主处理方向定向的处理模式逐像素处理每个切片。 页面宽阵列打印机沿打印方向打印半色调图像数据。