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Bubble Scrubbing In An Ink Jet Printing Head Disclosure Number: IPCOM000067240D
Original Publication Date: 1979-Jul-01
Included in the Prior Art Database: 2005-Feb-20

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Janeway, DL [+details]


Bubbles which are introduced into ink jet printing heads and filter cavities by gas coming out of solution can interfere with the operation of the ink jet nozzles. Typically, bubbles are trapped in corners and areas where flow velocity is low due to the shape of the cavity. High velocity flushing to remove the bubbles is relatively ineffective and unreliable, while high pressure operation to redissolve the gas is slow and time-consuming.