How to add ink to the cartridge

Take the cartridge out, the lower side with tape paper, and then the upper side of that tear, the ink from the hole to add, add 1-2 cells, can not add too much, otherwise it will be stuffed, and then wipe the upper side and lower side respectively, the upper side of the submission of the answer to the holes sealed with tape paper, and put back to the printer on it. Nothing too difficult, boldly try it