Ink jet recording apparatus for recording with variable scanning speeds
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United States of America Patent
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Oct 25, 1994
Grant Date -
N/A
app pub date -
Jun 8, 1992
filing date -
Jun 14, 1991
priority date (Note) -
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status (Latency Note)
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Abstract
A recording head having a plurality of recording elements can operate in a first recording mode for recording a desired image by performing a single scan operation on a predetermined region on a recording medium, and a second recording mode for recording a desired image by recording a thin image a plurality of number of times in a plurality of scan operations on the predetermined region. The scan speed in the second recording mode is set to be higher than that in the first recording mode. For example, when the scan speed in the second recording mode is N times that in the first recording mode, the driving operation of the plurality of recording elements is controlled to obtain a dot pattern in which the minimum dot distance in the scan direction in the second recording mode is N times or more that in the first recording mode. Image quality can be improved without decreasing the throughput.
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