You must write an important message and the ball point pen you grab is out of ink. The next pen you grab does not write and there is not another pen in reach. If this familiar scene happens to you, be ready to fix your ball point pen so you can write down the message.
Unclog the Cartridge - Take the ink cartridge out of the ball point pen.
Insert a piece of lead from a mechanical pencil into the ink cartridge.
Swivel the lead around inside and push it all the way to the head of the ink cartridge. Remove the lead.
Replace the ink cartridge inside the ball point pen. Test the pen to make sure it works.
Helpful Tricks - Hold the tip of the pen in a flame from a lighter for a few seconds. Any longer than that and the pen may melt. Your pen should now write.
Draw circles on a glass surface to loosen up the ball of the pen. If you see some ink on the surface as the pen begins to write, stop drawing immediately and clean the surface with glass cleaner. Test the pen on paper and it should work.