Patent ID: 6053606
Filing Date: 2000-04-25
Classification: B41J

Abstract:
An ink cartridge suitable for use in an ink recording apparatus, said ink cartridge comprising:a case main body having an opening and a side wall;a flat, flexible ink bag, said ink bag being substantially rectangular in shape, said ink bag having at least a first flat surface, said first flat surface being affixed to said case main body;an ink depletion detecting plate affixed to a second flat surface of said ink bag, said second flat surface being located on a side of said ink bag opposed to said first flat surface, said ink depletion detecting plate having a plurality of projecting pieces projecting coplanar from at least one side thereof, said ink bag having an outer edge, said projecting pieces extending sufficiently beyond the outer edge of said ink bag to permit a front end of said projecting pieces to come in contact with the side wall of said case to prevent movement of said ink bag within said main body upon movement of said ink cartridge in at least a first predetermined direction;a cover for covering the opening of said case main body, said cover being located on the same side of said ink bag as said ink depletion detecting plate, said cover preventing movement of said ink bag in at least a second predetermined direction.