A head cartridge for an ink-jet printer is disclosed. This head cartridge includes an ink storage inside an ink vessel body, a flexible body installed inside the ink storage to hold and deliver ink, an ink filter located on the lower portion inside the ink storage, a heating device with heating elements...http://www.google.com.au/patents/US6007192?utm_source=gb-gplus-sharePatent US6007192 - Head cartridge assembly for ink-jet printer
