Invention Grant
- Patent Title: Printing method with camouflage of defective print elements
- Patent Title (中): 打印方式伪装有缺陷的打印元素
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Application No.: US11121108Application Date: 2005-05-04
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Publication No.: US07903290B2Publication Date: 2011-03-08
- Inventor: Henry Faken , Johannes C. G. Vestjens
- Applicant: Henry Faken , Johannes C. G. Vestjens
- Applicant Address: NL Venlo
- Assignee: Oce-Technologies B.V.
- Current Assignee: Oce-Technologies B.V.
- Current Assignee Address: NL Venlo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: EP04076347 20040506
- Main IPC: G06K15/00
- IPC: G06K15/00

Abstract:
A printing method is provided for a printer having a printhead with a plurality of print elements and capable of printing a binary pixel image. The method includes locating defective print elements, determining a camouflage area in the vicinity of pixels that would have to be printed with the defective print elements, and camouflaging the defective print elements by modifying image information in the camouflage area, wherein the camouflaging step is incorporated in a halftoning step in which error diffusion is used for creating the binary pixel image, and comprises a step of modifying an error propagation scheme for the camouflage area.
Public/Granted literature
- US20050259296A1 Printing method with camouflage of defective print elements Public/Granted day:2005-11-24
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