I repaired my MX722 by removing the power supply and wiggling the fuzes..The whole side of the printer must be removed to find the fuzes...not recommended for most folks but I am a technician...do you sell new power supplies?
I took out the power supply and wiggled the two black fuses till it worked....You may want to get a new power supply. I don't recommend playing around with live electronics. I just happen to be a technician.
