Priming method for inkjet printers
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United States of America Patent
Stats
-
Nov 13, 1990
Grant Date -
N/A
app pub date -
Dec 2, 1988
filing date -
Dec 2, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A program installed in the microcontroller of an ink jet printer functions as a timer, to keep track of how much time has elapsed since the ink jet cartridge last printed. After a certain amount of time (such as one hour) has elapsed with no printing, the program directs all the nozzles of the cartridge to each print about twenty ink dots. This periodic priming of the nozzles during idle periods prevents viscous ink plugs from building up in and clogging the nozzles.
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Cited Art Landscape
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