Bleach
Step 1
Create a solution of 1 part water and 1 part of regular household bleach.
Step 2
Dip a rag into the solution. Rub the solution into the ink mark on the wood.
Step 3
Allow the solution to sit for five minutes.
Step 4
Remove the ink with a scrub brush. Scrub in the direction of the wood grain.
Step 5
Rinse the wood with clear water. Allow it to dry completely.
Sanding
Step 1
Pour paint thinner onto a rag. Rub the paint thinner into the ink marking with the rag.
Step 2
Allow the paint thinner to soak into the ink for 10 minutes.
Step 3
Sand the lumber in the direction of the grain with a palm or hand sander and fine-grit sandpaper. .
Step 4
Wipe the area clean with a damp rag.
Borax
Step 1
Mix a solution of borax and water. Dip a rag into the solution and rub it onto the ink mark.
Step 2
Allow the solution to soak into the lumber for five minutes.
Step 3
Scrub the moistened area in the direction of the wood's grain, using a scrub brush, to remove the ink.
Step 4
Rinse the area with clear water and allow it to dry.