US Patent 7377706 Print media roll and ink supply cartridge

A print media and ink supply cartridge includes an outer housing in which there is located a roll of print media located about a cylindrical former. The former includes a number of internal longitudinal ink storage volumes that are filled with hydrophobic sponges. One end of the former has winding airways formed into it that communicate with the internal ink storage volumes. An opposing end of the former includes a number of ink outlet ports that communicate with corresponding outlets in the housing. The cartridge includes a pair of print media transport rollers arranged to be driven by a power source external to the cartridge.