Patent ID: 6637872
Filing Date: 2003-10-28
Classification: B41J

Abstract:
An ink jet recording apparatus comprising:an ink tank having an ink supplying port for supplying ink to an ink jet recording head, an air intake port, an ink absorber for holding the ink, a suction port connectable to a suction pump so as to form a conduit between the suction pump and said ink absorber, and a gas-liquid separator arranged along the conduit between said suction port and said ink absorber, wherein said air intake port is connectable to an ink refilling container for refilling ink into said ink tank in response to suction by the suction pump; and a limiting mechanism arranged along the conduit between said gas-liquid separator and the suction pump, said limiting mechanism for limiting negative pressure generated in the conduit by the suction pump to a value less than that sustainable by said gas-liquid separator.