PIXMA MP620B Error U150 - can't resolve this error! Brand new out of the box. Reset all ink tanks and Print Head several times. Turned off and powered back on several times. Unplugged from wall several times. Blew on sensor in case of dust. Please help. Can't afford to buy another printer and this was a gift from my sister who had bought over a year ago but never opened or used so can't return to store. Thank You for any one's assistance!!
