Image recording apparatus capable of correcting density unevenness
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United States of America Patent
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Aug 30, 1994
Issued Date -
N/A
app pub date -
Jan 15, 1993
filing date -
Aug 31, 1990
priority date (Note) -
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Abstract
An image forming apparatus is provided by which a certain test pattern is recorded with a recording head having a plurality of recording elements, and the degree of density unevenness of each recording element of the recording head is calculated by reading the test pattern. The temperature of the recording head is detected and the degree of density unevenness calculated is corrected according to the detected temperature, thereby calculating correction data with respect to each recording element. At the time of image recording, image data input for each recording element is changed based on the correction data to correct any unevenness in density of the recorded image.
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