External acoustic absorber for ink jet printer

Details External acoustic absorber for ink jet printer External acoustic absorber for ink jet printer

1985-08-16

1986-10-07

Goldberg, E. A.

Recorders

Record receiver deforming

310326, 367140, G01D 1518, H01L 4108, H04R 1700

Patent

active

046162356

ABSTRACT:
There is described an acoustic absorber for an ink jet printer using a waveguide to generate ink drops. The absorber comprises a sheet of elastomer disposed on the orifice plate between the orifice plate and the charge plate of the printer, and a diffuser disposed in contact with the elastomer and between the elastomer and the charge plate, the diffuser having an acoustic impedance of at least 3.times.10.sup.7 kg/m.sup.2 sec. The length and width of the elastomer sheet and the diffuser are such as to absorb the vibrations from the orifice plate and prevent reflections at the end of the waveguide.

REFERENCES:
patent: 4074277 (1978-02-01), Lane et al.
patent: 4110759 (1978-08-01), Stoneburner
patent: 4167742 (1979-09-01), Head et al.
patent: 4354129 (1982-10-01), Ieki
patent: 4528652 (1985-07-01), Horner et al.

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