Incremental printing of symbolic information – Ink jet – Controller
Patent
1993-01-15
1994-08-30
Hartary, Joseph W.
Incremental printing of symbolic information
Ink jet
Controller
347 15, B41J 205
Patent
active
053432312
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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Canon Kabushiki Kaisha
Hartary Joseph W.
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