Ink jet recording head with head frame and piezoelectric vibrati

Details Ink jet recording head with head frame and piezoelectric vibrati Ink jet recording head with head frame and piezoelectric vibrati

1995-03-28

1999-03-09

Fuller, Benjamin R.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 71, B41J 2045

Patent

active

058807632

ABSTRACT:
A bonding width L between a head frame 5 and a flow path unit 12 in a direction orthogonal to an array of pressure producing chambers 7 is set to 0.5b.ltoreq.L.ltoreq.5a if it is assumed that a distance from the bonding end to the piezoelectric vibration element 2 closest to the head frame 5 is a and that the bonding ends of the head frame 5 interposing the piezoelectric vibration element 2 is b. Cracking of a spacer 6 or separation of the spacer 6 from a resilient plate 4 is prevented by ensuring a rigidity of the head frame 5 necessary for suppressing deformation of the flow path unit 12 and by causing the head frame 5 to absorb internal stresses of the flow path unit 12 caused by ambient temperature change.

REFERENCES:
patent: 4801947 (1989-01-01), Lichtenberger et al.
patent: 5424769 (1995-06-01), Sakai et al.
patent: 5439728 (1995-08-01), Morozumi et al.
patent: 5453769 (1995-09-01), Schantz et al.
patent: 5539982 (1996-07-01), Hosono et al.
patent: 5548894 (1996-08-01), Muto
patent: 5710584 (1998-01-01), Suzuki et al.
patent: 5764257 (1998-06-01), Miyazawa et al.
Patent Abstracts of Japan--vol. 018 No. 258 (M-1606), 17 May 1994--JP-A-06 040034 (Seiko Epson Corp). 15 Feb. 1994.
Patent Abstracts of Japan--vol. 018, No. 304 (M-1619), 10 Jun. 1994--JP-A-06 064163 (Seiko Epson Corp), 8 Mar. 1994.

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