To know about the steps to connect your HP Photosmart C4780 wireless printer then unpack your printer. You need to follow the instructions properly to remove the packaging. Now, plug in the power cord, turn on the HP printer, and install your print cartridge. You can allow the HP printer to go through the startup routine which includes the printing an alignment page. After that, choose one of the connection method if your printer supports it, choose an Ethernet connection, connect it now and you can skip the printer software installation process.