| 摘要 |
PROBLEM TO BE SOLVED: To suppress a temperature rise of a head due to speed-up and densification of recording. SOLUTION: In the inkjet recording head, a plurality of recording element substrates with ejection opening arrays comprised of a plurality of ejection openings for ejecting the ink are arranged on a support plate in the direction of an ejection opening array. A heat pipe H2000 and a channel in which a liquid for cooling is flown are disposed inside the support plate H1200. COPYRIGHT: (C)2009,JPO&INPIT
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