Incremental printing of symbolic information – Ink jet – Fluid or fluid source handling means
Reexamination Certificate
2006-05-30
2006-05-30
Vo, Anh T. N. (Department: 2861)
Incremental printing of symbolic information
Ink jet
Fluid or fluid source handling means
Reexamination Certificate
active
07052121
ABSTRACT:
A casing body of an ink cartridge includes a first chamber allowing atmospheric air to enter therein, and a second chamber that stores ink. A lid within the second chamber moves vertically while partitioning the second chamber into a first space above the lid and a second space below the lid for storing ink. A gap between an outer periphery of the lid and an inner periphery of the second chamber allows a meniscus of ink to form therebetween. A partition is provided at an upper end of the second chamber to partition the first and second chambers. The partition includes a through hole at a portion which is away from the inner periphery of the second chamber, to allow the atmospheric air to enter the second chamber. An elastic member in the second chamber urges the lid upwards to maintain the second space of the second chamber at a negative pressure.
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Nixon & Vanderhye P.C.
Vo Anh T. N.
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