Recorders – Performance of multiple functions of steam and gas engines – Pressure responsive element
Patent
1990-10-29
1992-10-27
Fuller, Benjamin R.
Recorders
Performance of multiple functions of steam and gas engines
Pressure responsive element
346140R, B41J 2175, B41J 219
Patent
active
051593483
ABSTRACT:
In an ink jet printer, a printhead assembly comprising a printhead and an ink reservoir is mounted on a scanning carriage for movement across a recording medium. During printing, droplets of ink are expelled from ink channels within the printhead and the channels are replenished with ink which is drawn in from the reservoir. The reservoir is connected by supply and return lines to an ink source, and a pump is provided to deliver ink from the source along the supply line to prime the printhead and reservoir. To ensure that the reservoir is filled with ink during the priming operation, the outlet from the reservoir to the return line incorporates a flow restriction equal to, or greater than, that of the printhead.
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Alt, R. C.; "Air Bubble Expelling from an Ink Jet Printing Head", IBM TDB, vol. 21, No. 6, Nov. 1978, p. 2511.
Anderson David G.
Carlotta Michael
Dietl Steven J.
Morano Richard A.
Taylor Thomas N.
Bobb Alrick
Chittum Robert A.
Fuller Benjamin R.
Xerox Corporation
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