Recording head system for ink jet recording apparatus and method for driving the same
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United States of America Patent
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Aug 15, 2000
Grant Date -
N/A
app pub date -
Dec 31, 1992
filing date -
Jan 9, 1992
priority date (Note) -
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status (Latency Note)
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Abstract
A recording head system for an ink jet recording apparatus having a full-line recording head. The recording head is divided into a variable number of blocks. The recording ratio of each block (that is, the ratio of the number of ink ejecting elements to be driven in a block in accordance with recording data to the total number of the ink ejecting elements in the block) is compared with a reference recording ratio. When the recording ratio is greater than the reference recording ratio, the interval between the drive timing of a block and that of the next block is lengthened, or vise versa. This is performed by controlling the enable timing of each block by D-flip-flops, AND gates and delay circuits. Unevenness of recorded images resulting from the fluctuation in periodic ink pressure can be ameliorated.
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