Incremental printing of symbolic information – Ink jet – Fluid or fluid source handling means
Patent
1993-04-13
1995-12-26
Le, N.
Incremental printing of symbolic information
Ink jet
Fluid or fluid source handling means
347 60, B41J 201
Patent
active
054791960
ABSTRACT:
An ink jet recording apparatus has a recording head provided with a plurality of ink discharging openings, ink paths leading to the ink discharging openings and an ink chamber commonly connected to the ink paths. Each ink path has a recording thermal energy generating element for causing film boiling of ink in the ink path so as to form a bubble of the ink vapor thereby discharging an ink droplet from the discharging opening. In order to recover from any ink discharging failure caused by bubbles stagnating in the ink paths, the recording thermal energy generating element can be driven in a specific driving condition with a smaller thermal energy input rate than in the recording operation. Tiny bubbles generated in each ink path as a result of the driving form a comparatively large void with which at least a part of the ink in each ink path is replaced so that stagnant bubbles are merged in the void and, hence, extinguished. The void is then discharged by sucking or application of a pressure so that the ink paths are refilled with the ink. The recording head can have an assisting thermal energy generating element which cooperates with the recording thermal energy generating element to ensure good discharge of the ink droplet. The assisting thermal energy generating element element also may be driven for recovery purposes purpose.
REFERENCES:
patent: 4112433 (1978-09-01), Vernon
patent: 4251824 (1981-02-01), Hara et al.
patent: 4291316 (1981-09-01), Kakeno et al.
patent: 4313124 (1982-01-01), Hara
patent: 4345262 (1982-08-01), Shirato et al.
patent: 4393384 (1983-07-01), Kyser
patent: 4419673 (1983-12-01), Ebi et al.
patent: 4459600 (1984-07-01), Sato et al.
patent: 4463359 (1984-07-01), Ayata et al.
patent: 4494128 (1985-01-01), Vaught
patent: 4558333 (1985-12-01), Sugitani et al.
patent: 4723129 (1988-02-01), Endo et al.
patent: 4740796 (1988-04-01), Endo et al.
patent: 5053787 (1991-10-01), Terasawa et al.
Canon Kabushiki Kaisha
Le N.
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