Vassilis72,
Welcome to the HP Forum!
Have you downloaded and installed the Full Feature Software on your computer to control the printer?
HP LaserJet Pro P1102w Printer Drivers
The software is in Category Driver - Product Installation Software
Your printer's User Guide:
HP LaserJet Professional P1100 Printer series - User Guide
Other Manuals: HP LaserJet Pro P1102w Printer User guides
There are videos on the printer's webpage to assist with the installation -- scroll the video list back and forth to find the video that most closely matches your situation.
You can call HP directly for help:
Contact HP – USA - Phone Assistance
Warranty Required – USA and Canada
USA – Contact HP // Self-Help – Email - Chat
Click the KudosStar!
It is a nice way to say “Thank You” for the help.
Although I strive to reflect HP's best practices, I do not work for HP.