Recording apparatus having a recording head driven in plural blocks
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United States of America Patent
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Jul 23, 1996
Issued Date -
N/A
app pub date -
Feb 10, 1994
filing date -
Oct 19, 1989
priority date (Note) -
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status (Latency Note)
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Abstract
There is disclosed a driving device for a recording head such as a thermal head or an ink jet head driven in plural blocks, which is capable of avoiding formation of division lines, or low-density streaks, in the recorded image at the boundaries of the driving blocks of the head. In this driving device, the time difference between the start of pulse application to a heat generating element of the recording head and that of an adjacent element is maintained so as not to exceed the maximum pulse duration to the heat generating element. Also, a group of plural heat generating elements positioned at the boundary of two divided blocks is activated simultaneously with each of the two divided blocks.
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