The present invention relates to an ink cartridge provided with an ink chamber and air communication portion that permits {HEAD ~ the ink chamber} to communicate with {TAIL ~ ambient air} to bring pressure of the ink chamber into atmospheric pressure 
to communicate with
The present invention relates to an ink cartridge provided with an ink chamber and air communication portion that permits { HEAD ~ the ink chamber } to communicate with { TAIL ~ ambient air } to bring pressure of the ink chamber into atmospheric pressure
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH