I have no power. Printer was priniing and when

Power supply or main board is common failure on these resulting in dead, ....can be from power fluctuations on line, ir spikes on four boards, if you have checked the lead is secure and that the point you are using works ...and there is still no display.... then I'm afraid this is your brother no longer due to the power supply or main board being worth more than the unit itself, sorry bye brother ;)