Difficulty: Moderately Easy
Unclog the Cartridge
Step1
Take the ink cartridge out of the ball point pen.
Step2
Insert a piece of lead from a mechanical pencil into the ink cartridge.
Step3
Swivel the lead around inside and push it all the way to the head of the ink cartridge. Remove the lead.
Step4
Replace the ink cartridge inside the ball point pen. Test the pen to make sure it works.
Helpful Tricks
Step1
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.
Step2
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.
Step3
Place just the pen tip in boiling water for a few seconds. You can also try with really hot water from the faucet. Scribble on some paper to see if the pen works now.