Q: mac computer say 'printer is offline'

My printer is HP laserjet professonal P1102W. I hadn't problem to use my printer until I had problem with my internet.

After I fixed my internet, somehow my computer couldn't detect computer either wireless or with cable.

I think that I may change something in print location setting.

Now I can't use my printer because it keep saying 'pinter is offline'

Does any one know how to fix it? Any helps would be greatly appreciated.