Recorders – Markers and/or driving means therefor – With ink supply to marker
Patent
1988-02-12
1989-10-17
Hartary, Joseph W.
Recorders
Markers and/or driving means therefor
With ink supply to marker
1375121, 417540, B01D 1516, B41J 304
Patent
active
048750590
ABSTRACT:
An ink jet recording head has a liquid supply path communicating with a discharge port for discharging ink therethrough and energy generating means provided correspondingly to the liquid supply path and generating energy utilized to discharge the ink, charactrized in that the liquid supply path upstream of the energy generating means is filled with a filler, and an area in which the percentage of voids increases toward the upstream direction is provided in the upstream portion of the liquid supply path filled with the filler. In a preferred embodiment the filler comprises a plurality of glass balls having increasing diameters in the upstream direction. The use of such a filler increases the frequency response, droplet ejection speed and droplet diameter of the recording head.
REFERENCES:
patent: 3320971 (1967-05-01), Hemenway
patent: 3832579 (1974-08-01), Arndt
patent: 4278983 (1981-07-01), Halasz
patent: 4306245 (1981-12-01), Kasugayama et al.
patent: 4514742 (1985-04-01), Suga
patent: 4514743 (1985-04-01), Roschlein
patent: 4719479 (1988-01-01), Kyogoku
patent: 4723129 (1988-02-01), Endo et al.
Canon Kabushiki Kaisha
Hartary Joseph W.
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