I have a 924 all-in-one printer that is not working properly.  The other day, the power strip was accidently turned off.  Everything plugged into it is fine except the printer.  When I plug it in, the power light is on, but the display is not and the computer thinks the printer isn't there.  When I push the power button, nothing happens.  Is this caused from the power supply or could it be something else?????  Thanks for you help in advance!!!