Image recording apparatus and method of detecting defective recording element
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United States of America Patent
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Aug 14, 2018
Grant Date -
Mar 9, 2017
app pub date -
Nov 17, 2016
filing date -
Jun 4, 2014
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Abstract
Provided are an image recording apparatus that efficiently detects defective recording elements causing image defects in a plurality of recording heads and a method of detecting the defective recording elements. An image recording apparatus including: a plurality of recording heads; an indicator acquisition unit for acquiring an indicator which relatively indicates how easily image defects are visually perceived for each color, an appearance ratio setting unit for setting an appearance ratio of a test pattern as a higher value as the indicator of each color becomes higher; a recording unit for recording the test pattern of each color on a recording medium at the appearance ratio; an imaging unit for capturing an image of the test pattern which is recorded on the recording medium; and an analysis unit for analyzing the captured test pattern and detecting a defect of a recording element in the recording head.
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