Recorders – Markers and/or driving means therefor – With ink supply to marker
Patent
1977-02-14
1978-08-08
Hartary, Joseph W.
Recorders
Markers and/or driving means therefor
With ink supply to marker
219302, 219303, 219305, 346 75, G01D 1518
Patent
active
041060300
ABSTRACT:
An ink temperature control apparatus having an enclosed heat conducting structure with ink circulating therein is provided in a ink jet printer. The temperature control apparatus includes a heating element attached to the structure and thermally engaged with the ink contained within the ink structure. A temperature sensing device is also located on the structure and is thermally engaged with the ink contained within the structure. A control system is provided to respond to the temperature sensing device and actuate the heating element in response to the temperature information communicated by the temperature sensing device. The ink is maintained at a certain predetermined temperature by the control system. Ink under pressure enters the structure from a sump after being pressurized by a pump. Subsequent to leaving the structure, the heated ink proceeds to a nozzle of the ink jet printer. Any ink exiting the nozzle which is not utilized for printing purposes is collected and returned to the sump to be recycled through the ink jet printer.
REFERENCES:
patent: 941215 (1909-11-01), Wade
patent: 1560528 (1925-11-01), Baum
patent: 3790033 (1974-02-01), Ciaffone
patent: 3999190 (1976-12-01), Brown
patent: 4007684 (1977-02-01), Takano
Ruddy, G. A.; Viscosity Control Circuit; IBM Tech. Disc. Bulletin, vol. 16, No. 10, Mar. 1974.
Hampton Perry D.
Tobey Jimmie L.
Demond Thomas W.
Hartary Joseph W.
Recognition Equipment Incorporated
Vandigriff John E.
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