Ink jet recording method and apparatus in which the temperature of an ink jet recording heat is controlled
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United States of America Patent
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-
Apr 26, 1994
Grant Date -
N/A
app pub date -
Aug 13, 1991
filing date -
Aug 14, 1990
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An ink jet recording apparatus uses a recording head to eject ink and has a sensor for detecting the ambient temperature of the head. A heating element in the head controls the temperature of the ink, while a counter counts a print waiting period. A table for determining drive information for the heating element in accordance with an output of the temperature detecting means is also provided. A controller, responsive to this table, controls the internal heating operation effected in the print waiting period after the end and before the start of a printing operation within a predetermined period, and controls a duty heating operation effected periodically when the predetermined period is exceeded.
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