Installing latest driver did the trick for me, now everything works just fine!
Some information just for anyone interested:
System: Windows 8.1 Pro 64-bit Swedish
Printer is connected using WIFI.
IP-Addresses used:
Router: 10.0.1.1
PC: 10.01.2
Printer: 10.0.1.5
Thank you so much for the help resovling my issue!