If your printer does not have ink and you remove the ink cartridges. You must immediately replace them with the new ones. Let’s see, how to change ink cartridge Canon Pixma MG3620. Turn on the printer and remove the cover of the printer. When you remove the cover and push the green level. The ink cartridges will automatically move to the center. Then, gently push the tabs and remove the ink cartridges in the printer. Insert the new ones by unwrapping them first and insert them in the same place. Close the cover of the printer.