how can i erase laser printer ink from a document?

Answer 1

If the ink or the paper is cheap you can use a regular eraser and rub really hard.

Whiteout

Re-print the document after you make changes.

Whiteout the desired ink then find a good photocopier and copy the document. Usually this will make the desired text disappear but you won't have the whiteout visible.

Hope this helps!

Answer 2

report cards out already? =)