B - Operations – Transporting – 41 – J
Patent
B - Operations, Transporting
41
J
B41J 2/05 (2006.01) B41J 2/015 (2006.01) B41J 2/14 (2006.01)
Patent
CA 2288359
A substrate for use of an ink jet head that constitutes an ink jet head comprises a plurality of discharge ports for discharging liquid, a plurality of liquid flow paths communicated with the plurality of discharge ports, and first and second heat generating means arranged serially in the liquid flow paths in the flow path direction of the liquid flow paths for generating thermal energy which is utilized for discharging liquid in the liquid flow paths from the discharge ports, the first and second heat generating means being formed on the substrate. For this substrate, the first and second heat generating means are driven at driving frequencies of 4 kHz or more, and the first heat generating means are arranged in parallel in the direction perpendicular to the flow path direction of the liquid flow paths, and at the same time, structured with a plurality of heat generating resistive members electrically connected in series, and the second heat generating means is structured with at least one heat generating resistive member. With the structure thus arranged, this substrate makes it possible not only to stabilize liquid discharges even for the execution of a multi- valued recording, but also, provide the heat generating resistive members and liquid flow paths in higher densities.
Imanaka Yoshiyuki
Inoue Ryoji
Ishimatsu Shin
Iwasaki Osamu
Saito Ichiro
Canon Kabushiki Kaisha
Ridout & Maybee Llp
LandOfFree
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