Incremental printing of symbolic information – Ink jet – Fluid or fluid source handling means
Patent
1997-03-03
2000-08-22
Le, N.
Incremental printing of symbolic information
Ink jet
Fluid or fluid source handling means
B41J 2175
Patent
active
061061093
ABSTRACT:
An inkjet printing system provides an automated mechanism for the connection/disconnection of an ink supply valve to inkjet printheads without having to remove the printheads from a carriage. The automated mechanism includes a bracket for holding a plurality of ink supply valves in a passive first position displaced from a corresponding number of inlet ports on inkjet printheads mounted in the carriage which moves back and forth across a print zone. During normal printing operations there is no connection between the ink supply valves and the inkjet printheads. When it becomes necessary to replenish ink in the printheads from a supplemental ink container connected to the ink supply valve, the carriage comes to a rest position away from the print zone, and a motor causes the bracket to move toward the carriage so that an ink supply valve can directly engage an inlet port on the inkjet printhead. In an exemplary embodiment, an ink cartridge having a reservoir capacity of about 40 cc. can receive about 15 cc. of ink from the supplemental ink container through the ink supply valve during a relatively short time period of approximately two minutes. Since the bracket moves all the ink supply valves as a group, all of the printheads are replenished at the same time, even through only one printhead may have reached a threshold level which triggered the replenishment procedure.
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Patent Abstracts of Japan, published by the European Patent Office, Publication Number: 60248355, Publication Date: Sep. 12, 1985.
Giles Robert
Gunther Max S.
Olazabal Ignacio
Ruiz Felix
Young Mark E.
Hewlett--Packard Company
Le N.
Ronney David S.
Vo Anh T. N.
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