Printer using print cartridge with internal pressure regulator
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United States of America Patent
Stats
-
Dec 22, 1998
Issued Date -
N/A
app pub date -
Aug 30, 1996
filing date -
Oct 31, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
In the preferred embodiment, an inkjet printer includes a replaceable print cartridge which is inserted into a scanning carriage. An ink tube extends from the scanning carriage to a separate ink supply located within the printer. A fluid interconnect on the print cartridge connects to a fluid interconnect on the carriage when the print cartridge is inserted into the carriage to complete the fluid connection between the external ink supply and the print cartridge. In one embodiment, the fluid interconnection is made between the print cartridge and the ink tube simply by placing the print cartridge into a stall in the scanning carriage. A pressure regulator internal to the print cartridge regulates the flow of ink from the external ink supply to the print cartridge. The external ink supply may be pressurized or non-pressurized.
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