The ink jet printer comprises a printhead (22) movable in front of a printing medium (30) and provided with an ink cartridge (25) integral with it; the cartridge is filled with ink from a main, high capacity tank (35), which is connected at intervals to the cartridge (25) by means of a capillary element....http://www.google.de/patents/US7722171?utm_source=gb-gplus-sharePatent US7722171 - Ink jet printer with high capacity tank and associated ink refilling system
