Fluid pump system for an ink jet printer

Details Fluid pump system for an ink jet printer Fluid pump system for an ink jet printer

1980-05-19

1982-03-16

Miller, Jr., George H.

Recorders

Markers and/or driving means therefor

With ink supply to marker

346 75, G01D 1518

Patent

active

043204074

ABSTRACT:
A fluid pump system for an ink jet printer apparatus includes a reservoir of printing fluid, a filter for removing contaminants from the printing fluid, and an apparatus for printing characters with the printing fluid. A gear pump delivering steady, stable fluid pressure pumps the virtually contaminant free printing fluid to the printing apparatus. The gear pump also circulates to the reservoir an amount of printing fluid in excess of the amount required by the printing apparatus. A device regulates when the virtually contaminant free printing fluid is supplied to the means for printing and an additional device supplies virtually contaminant and air-free printing fluid to the means for printing.

REFERENCES:
patent: 3761953 (1973-09-01), Helgeson et al.
patent: 3929071 (1975-12-01), Cialone et al.
patent: 4042937 (1977-08-01), Perry et al.
patent: 4050078 (1977-09-01), Isayama et al.
patent: 4067020 (1978-01-01), Arway
patent: 4079384 (1978-03-01), Takano et al.
patent: 4089007 (1978-05-01), Perry et al.

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