Incremental printing of symbolic information – Ink jet – Controller
Patent
1994-05-27
2000-07-11
Le, N.
Incremental printing of symbolic information
Ink jet
Controller
B41J 2938
Patent
active
060861800
ABSTRACT:
An ink jet recording apparatus including a recording head for performing print recording by ejecting ink from an ejection orifice by thermal energy; temperature sensors provided in the recording head; a temperature calculation device for calculating a temperature change of the recording head in a unit time as a discrete value on the basis of the supply of energy input to the recording head, and for calculating the temperature change of the recording head by accumulating the discrete value in the unit time; a temperature presuming device for presuming a head temperature by both a calculated value of the temperature change and an adopted base value of the head temperature; a detection device for detecting a difference between the head presumed temperature and a detected temperature sensed by the temperature sensors; an update device for updating the adopted base value of the head temperature by the difference; and a control device for controlling ejection of the ink to be stabilized in accordance with the head presumed temperature.
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Gotoh Fumihiro
Hirabayashi Hiromitsu
Koitabashi Noribumi
Matsubara Miyuki
Nagoshi Shigeyasu
Canon Kabushiki Kaisha
Le N.
Nghiem Michael
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