Method of purging impurities from a printing head

Details Method of purging impurities from a printing head Method of purging impurities from a printing head

1986-01-03

1987-05-26

Goldberg, E. A.

Recorders

Markers and/or driving means therefor

With ink supply to marker

346 11, G01D 1516, G01D 900

Patent

active

046689656

ABSTRACT:
A method for purging impurities from the ink path from a drop-on-demand ink jet type printing head prior to or subsequent to use in a normal printing operation includes the steps of heating the ink path to a temperature above the temperature used during the printing operation and purging ink through the ink path during or subsequent to the heating step.

REFERENCES:
patent: 4123761 (1978-10-01), Kimura
patent: 4125845 (1978-11-01), Stevenson
patent: 4158847 (1979-06-01), Heinzl
patent: 4164745 (1979-08-01), Cielo
patent: 4176363 (1979-11-01), Kasahara
patent: 4301459 (1981-11-01), Isayama

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