Ink cartridge for a computer system having an integral printer
View Patent ↗An ink cartridge for a computer system having an integral printer includes a media housing portion having top and bottom moldings which operatively mate to form a housing for sheets of paper, the housing portion having a print media transport mechanism. The cartridge also includes an ink storage portion having an ink storage base molding which defines a plurality of distinct ink chambers which are sealed by engaging an underside of the bottom molding. Each ink chamber terminates in an ink manifold having ink outlet nozzles for operatively arranging the ink storage portion in fluid communication with the printer.
1. An ink cartridge for a computer system having an integral printer, said cartridge comprising:
a media housing portion having top and bottom moldings mated to form a housing for storing sheets of paper therebetween, the housing portion having a print media transport mechanism; and
an ink storage portion having an ink storage base molding defining a plurality of distinct ink chambers, the ink storage portion attached to an underside of the bottom molding and sealed therewith, each ink chamber terminating in an ink manifold having ink outlet nozzles for operatively arranging the ink storage portion in fluid communication with the printer.
2. The ink cartridge of claim 1 , wherein the media housing portion defines a print media exit opening that connects with the housing and the print media transport mechanism, and the print media transport mechanism is disposed within the print media housing portion adjacent the print media exit.
3. The ink cartridge of claim 1 , wherein the media housing portion includes springs which bear against an inner lower surface of the top molding and are biased downwardly toward engagement with an upper surface of the bottom molding to position sheets of paper inside said media housing portion.
4. The ink cartridge of claim 2 , wherein the print media transport mechanism includes a geared pick up roller assembly with a drive shaft, pick up rollers that are rigidly secured to the drive shaft, and an external drive gear.
5. The ink cartridge of claim 4 , wherein the transport assembly is captively retained within the media housing portion, the drive shaft being rotatably supported by means of arcuate ribs formed in a channel located beneath the exit opening.
6. The ink cartridge of claim 2 , further comprising a foil provided adjacent the exit opening, said foil sized to extend downwardly across the exit opening such that once the transport mechanism is operated, only a single sheet of paper or card is driven through the exit opening at any one time.
7. The ink cartridge of claim 1 , further comprising an intermediate thin walled deformable film contoured to nest within the ink chambers defined in the base molding, the base molding engaged sealingly with a flange provided around the periphery of the thin walled deformable film which in turn is sealingly connected with the underside of the print media storage bottom molding.