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US07903290B2 Printing method with camouflage of defective print elements 有权
打印方式伪装有缺陷的打印元素

Printing method with camouflage of defective print elements
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.
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