B - Operations – Transporting – 67 – D
Patent
B - Operations, Transporting
67
D
B67D 99/00 (2010.01) B41J 2/05 (2006.01) B41J 2/14 (2006.01)
Patent
CA 2353692
A liquid discharge head comprises a plurality of heat generating members for generating thermal energy for generating a bubble in liquid, a discharge port provided for each of said heat generating members and constituting a portion for discharging said liquid, a liquid flow path communicating with said discharge port and including a bubble generating area for generating a bubble in the liquid, a movable member provided in said bubble generating area and adapted to displace among with the growth of said bubble, a limiting portion for limiting the displacement of said movable member within a desired range, and a circuit-for receiving data of a predetermined number of bits for each heat generating member and generating drive pulses for the corresponding heat generating member based on the input data, wherein said heat generating member and said discharge port are in a linear communicating relationship, said limiting portion is provided opposed to said bubble generating area in said liquid flow path, and the liquid flow path including said bubble generating area constitutes a substantially closed space except for said discharge port by the substantial contact between said displaced movable member and said limiting portion, and the number of said drive pulses generated from said input data is larger than said predetermined number of bits at least for a set of said data, and said liquid is discharged from said discharge port by the energy of bubble generation by the application of said drive pulse.
Ishinaga Hiroyuki
Misumi Yoshinori
Sugiyama Hiroyuki
Taneya Yoichi
Canon Kabushiki Kaisha
Ridout & Maybee Llp
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