blinking light, no power, error, how to fix these problems for HP DeskJet 6840?

By: Guest
Date: Tue-Jan-5-2010-
No answer yet::

Got an answer? Answer this question and earn real $ [See detail] for it.

Be the first one and save the day. Do you have half of the answer? (even a clue?) you can still share it and someone will improve your answer.

What is 1 + 100

Just Updated::