PURPOSE: To swiftly and easily render printing conditions most suitable by providing a heat control means which, corresponding to an environmental condition, furnishes a recording unit control means with an electric signal of a pulse width within a range in which a flying droplet should not be formed, and performs heating of liquid.
CONSTITUTION: The title device is provided with the following components: (a) a liquid jet recording unit 100 which has a discharge energy generating means 102 which includes an electrothermal energy conversion element which can heat liquid and form a flying droplet, corresponding to an electric signal supplied, and discharges the formed flying droplet and performs recording on a material P to be recorded; (b) a recording unit control means 110 which can establish a pulse width of an electric signal, and corresponding to input of a recording signal SA, furnishes a discharge energy generat ing means 102 with an electric signal to form a flying droplet; (c) a heating control means 140 which has a pulse width setting means 142 which establishes a pulse width for the recording unit control means 110; and corresponding to an environmental condition, by furnishing the recording unit control means 110 with an electric signal of a pulse width within a range in which a flying droplet should not be formed, heating of liquid is performed.
EBISAWA ISAO
ABE TSUTOMU
OBA TAKASHI
IIDA YASUSHI
WATANABE KENJIROU
NAGATOMO AKIRA
