Ink ejection apparatus comprising entrained air removal means

Details Ink ejection apparatus comprising entrained air removal means Ink ejection apparatus comprising entrained air removal means

1979-10-29

1981-11-17

Miller, Jr., George H.

Recorders

Markers and/or driving means therefor

With ink supply to marker

G01D 1518

Patent

active

043014593

ABSTRACT:
An air removal unit (36) is disposed in a conduit (35) leading from an ink reservoir (34) to an ink ejection head (37). The amount of entrained air in the ink in the head (37) is sensed, and a heater (39) connected to the removal unit (36) is energized to heat the ink and boost the air removal efficiency when the amount of entrained air is above a certain value. The air removal unit (36) includes a container (47) and partitions (51), (52) provided in the container (47) to define chambers. The ink flows upwardly and downwardly through the chambers and the entrained air rises into a collection chamber (54) from which it is vented to the atmosphere.

REFERENCES:
patent: 3929071 (1975-12-01), Cialone et al.
patent: 4034380 (1977-07-01), Isayama
patent: 4079384 (1978-03-01), Takano et al.
patent: 4106030 (1978-08-01), Hampton et al.
patent: 4153902 (1979-05-01), Kanayama
patent: 4183029 (1980-01-01), Isayama et al.

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