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