Printer with ink supply system having downstream conduit loop

Details Printer with ink supply system having downstream conduit loop Printer with ink supply system having downstream conduit loop

2011-07-26

2011-07-26

Le, Uyen-Chau N (Department: 2874)

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

C347S085000, C347S089000

Reexamination Certificate

active

07984981

ABSTRACT:
A printer comprising:a printhead having an ink inlet and an ink outlet;a pressure-regulating chamber having an outlet port connected to the ink inlet via an upstream ink conduit, the chamber containing ink at a first level below the printhead, wherein a headspace above the first level of ink is open to atmosphere; anda downstream ink conduit connected to the ink outlet and terminating above the first level of ink, the downstream ink conduit being open to atmosphere,wherein the downstream ink conduit comprises a loop section passing below the first level of ink, such that, in a printing configuration, a second level of ink in the loop is equal to the first level of ink in the chamber.

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