Ink jet purging arrangement

Details Ink jet purging arrangement Ink jet purging arrangement

1994-02-24

1996-09-17

Barlow, Jr., John E.

Incremental printing of symbolic information

Ink jet

Controller

347 25, 347 88, B41J 2165

Patent

active

055573053

ABSTRACT:
An ink jet head has a reservoir containing hot melt ink and an orifice plate with orifices, along with passages leading from the reservoir to the orifices to conduct ink thereto. The ink jet head includes a heater to melt the ink in the reservoir, along with a further heater to heat air in the airspace above the ink in the reservoir, and the reservoir has a sealable vent which is sealed by a sealing element at a maintenance station so that heating of the air increases the pressure in the reservoir to cause purging, an absorbent member being provided at the maintenance station adjacent to the orifice plate to trap ink ejected during purging.

REFERENCES:
patent: 4558326 (1985-12-01), Kimura et al.
patent: 4806955 (1989-02-01), Koto et al.
patent: 4937598 (1990-06-01), Hine et al.
patent: 5030972 (1991-07-01), Miyazawa et al.
patent: 5053787 (1991-10-01), Terasawa et al.
patent: 5343228 (1994-08-01), Takada

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