Patent ID: 6273561
Filing Date: 2001-08-14
Classification: B41J,G03G

Abstract:
A cartridge for a printer apparatus, said cartridge comprising:a body having a first surface through which ink is discharged, the ink being discharged from said body to a recordable medium during a printing operation, said body being transported back and forth along a first line of horizontal motion during the printing operation, the recordable medium being transported along a second line of vertical motion during the printing operation;a reservoir being attached to said body and containing the ink;a first print head being attached to said first surface and comprising a first plurality of nozzles forming at least one row substantially perpendicular to said first line of horizontal motion, said at least one row of said first plurality of nozzles including a first nozzle in a lowest vertical position and a last nozzle in a highest vertical position, all adjacent nozzles in said at least one row of said first plurality of nozzles being separated from each other by an equal distance, said first print head having a first printing height, said first printing height being measured from said first nozzle in said at least one row of said first plurality of nozzles up to said last nozzle in said at least one row of said first plurality of nozzles;a second print head being attached to said first surface and comprising a second plurality of nozzles forming at least one row substantially perpendicular to said first line of horizontal motion, said at least one row of said second plurality of nozzles including a first nozzle in a lowest vertical position and a last nozzle in a highest vertical position, all adjacent nozzles in said at least one row of said second plurality of nozzles being separated from each other by said equal distance, said second print head having a second printing height, said second printing height being measured from said first nozzle in said at least one row of said second plurality of nozzles up to said last nozzle in said at least one row of said second plurality of nozzles;a first supply pipe with a first filter, said first supply pipe supplying the ink from said reservoir through the first filter to said first print head; anda second supply pipe with a second filter, said second supply pipe supplying the ink from said reservoir through the second filter to said second print head, said first and second supply pipes being separately located;said first print head and said second print head being positioned with said at least one row of said first plurality of nozzles being substantially parallel to said at least one row of said second plurality of nozzles, said cartridge having a total printing height substantially equal to the sum of said first printing height and said second printing height, said first nozzle of said at least one row of said first plurality of nozzles being adjacent to said last nozzle of said at least one row of said second plurality of nozzles, said first nozzle of said at least one row of said first plurality of nozzles being separated from said last nozzle of said at least one row of said second plurality of nozzles by said equal distance as measured perpendicular to said first line of horizontal motion.