I am having a printer error on my Canon Maxify MB 2720 all in one printer. The error code I am getting is B504, which I believe is the new 5040. I have followed the directions from the error message but cannot resolve the issue. I have unplugged the printer several time and cleared all the print jobs. I have also checked the ink cartridges to make sure that they are properly seated. Every time I turn my printer back on, it tries to print and gives me the same error message. I have instructed it to clean print head but error message overrides it. Is there anything else I can do?
