Ink-jet cartridge with a negative pressure ink reservoir
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United States of America Patent
Stats
-
Sep 11, 2001
Grant Date -
N/A
app pub date -
Jan 24, 2000
filing date -
Sep 9, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An ink-jet cartridge with a negative pressure ink reservoir includes a rigid body provided with an ejecting device; an ink reservoir provided within the rigid body, the ink reservoir including two relatively movable plates and a plate body having resilience. The plate body is provided between the two flat plates, and is sealed with the circumferences of the two flat plates to form an enclosed ink reservoir. During ink-jet printing, the pressure within the ink reservoir decreases and the two plates move closer to each other to compress the plate body and the resilience of the plate body causes a negative pressure within the ink reservoir that prevents ink leakage from the ink-jet cartridge.
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