Method of extending the life of a printbar of a color ink jet printer
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United States of America Patent
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Dec 3, 1996
Grant Date -
N/A
app pub date -
Nov 25, 1994
filing date -
Nov 25, 1994
priority date (Note) -
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status (Latency Note)
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Abstract
A method of extending the useful life of a printbar for black ink in a multi-color printbar, full width array color ink jet printer by checking each nozzle in the printbar for droplet ejection; identifying any nozzle which fails to eject a droplet as a problem nozzle, and substituting at least one droplet from a nozzle in another printbar having a different color of ink. The substitute fill-in with a cyan droplet, cyan and magenta droplets, or cyan, magenta, and yellow droplets for process black prevents a missing spot and provides adequate printing quality for black printing, such as, for text, so that immediate printbar replacement is avoided, thereby extending the printbar life.
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Cited Art Landscape
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