Patent Number: 6,252,617

Title: Ink jet recording method

Abstract: An ink directly contacts a heating resistor which forms a portion of an electrothermal transducer. The ink is ejected from orifices by using thermal energy generated by supplying an electric current to the heating resistor. The concentration of alkali metal ion is equal to or less than 5.times.10.sup.-3 mol/l.

Inventors: Hasegawa; Kenji (Kawasaki, JP), Toma; Koichi (Kawasaki, JP), Kimura; Isao (Kawasaki, JP), Shiozaki; Atsushi (Nagahama, JP)

Assignee: Canon Kabushiki Kaisha

International Classification: B41J 2/14 (20060101); B41J 2/16 (20060101); G01D 011/00 ()

Expiration Date: 06/26/2018