Incremental printing of symbolic information – Ink jet – Fluid or fluid source handling means
Patent
1995-12-29
1999-09-21
Nguyen, Matthew
Incremental printing of symbolic information
Ink jet
Fluid or fluid source handling means
G01D 1516
Patent
active
059560622
ABSTRACT:
A liquid jet recording apparatus is structured to enable recording liquid to circulate by conductively connecting the recording head for discharging recording liquid and means for retaining recording liquid through a forwarding path for recording liquid to flow into the head and a returning path for recording liquid to flow out from the head. This apparatus comprises means for generating pressure to suck recording liquid on the returning path from the head, while exerting pressure on recording liquid in the forwarding path toward the head. In this way, dust particles and air bubbles in ink are removed without allowing ink to flow out of the discharge ports of the recording head so as to save the consumption of ink to be used wastefully when a recovery operation is executed for the apparatus.
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patent: 5231424 (1993-07-01), Kaneko et al.
patent: 5296875 (1994-03-01), Suda
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Fukushima Tatsuya
Harada Tsutomu
Omata Kouichi
Canon Kabushiki Kaisha
Nguyen Matthew
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