Remove the pen lid. Twist the barrel counterclockwise to remove it.
Insert the pen nib fully in an open bottle of ink. Twist the converter knob counterclockwise, to force all the air out of the chamber.
Twist the converter knob clockwise to draw ink into the chamber. Fill the chamber completely. Remove the nib from the ink. Twist the knob slightly counterclockwise until a small drop of ink comes from the nib. Replace the barrel of the pen. The pen is now ready to be used.
Remove the pen lid. Twist the barrel counterclockwise to remove it.
Insert the cartridge with the portal end into the nib portal.
Press the cartridge firmly until it clicks into place. Replace the barrel of the pen.
Remove the pen lid. Twist the barrel counterclockwise to remove it.
Insert the pen nib fully in an open bottle of ink. Press the metal bar to deflate the bladder.
Release the metal bar slowly to draw ink up into the bladder. Remove the nib from the ink.