PrntScr does not print, it usually copies your screen and you can paste it to paint, Word or an email.
You need to correct your network issue for your printer.
Original poster, If you have solved your problem, can you please mark the correct thread(s) with your solution. Thanks
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#MicrosoftMVP - Windows Expert-Consumer April 1, 2012 to March 31, 2015
From what I have researched, a blinking green light indicates that the gateway is doing an internal system power-on self check and this could be the reason why your printer fails to print.