Suction recovery mechanism and ink jet recording apparatus using

Details Suction recovery mechanism and ink jet recording apparatus using Suction recovery mechanism and ink jet recording apparatus using

1991-10-01

1994-08-30

Grimley, A. T.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

G01D 1516

Patent

active

053432282

ABSTRACT:
An ink jet recording apparatus includes a recording head having an ink discharge opening for discharging ink, a suction system for applying negative pressure to the ink discharge opening to suck ink therefrom to recover proper discharge of ink, and a first capping member for capping the ink discharge opening, the member being connected to the suction system to apply negative pressure to the discharge opening when it is capped. The apparatus also includes an ink retaining portion for retaining ink to be fed to the recording head, a vent opening in the ink retaining portion, and a second capping member for capping the vent opening. The capping members are operable in a first mode in which the first capping member does not cap the discharge opening and the second capping member does not cap the vent opening, a second mode in which the first capping member caps the ink discharge opening and the second capping member does not cap the vent opening, and a third mode in which the first capping member caps the ink discharge opening and the second capping member caps the vent opening.

REFERENCES:
patent: 4410900 (1983-10-01), Terasawa
patent: 4506277 (1985-03-01), Terasawa
patent: 4999643 (1991-03-01), Terasawa
patent: 5086305 (1992-02-01), Terasawa
patent: 5140344 (1992-08-01), Tsukada et al.
patent: 5142308 (1992-08-01), Hasegawa et al.

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