Setting up printing and scanning of hp photosmart C310 printer over network with fedora 18

Here is what I did.

I installed the hplip packages: (sorry I don't know if I added any extra repository, but if you don't see it the only repositories I have added are the "rpmfusion free" and "rpmfusion free -updates")

• HP Linux Imaging and Printing Project
• Files needed by the HPLIP printer and scanner drivers
• HPLIP Graphical tools
• HPLIP Libraries

Once I installed them I opened up Hp Device Manager (I pressed the search app button i.e. windows button).

Once open...

• Selected Network/Ethernet/Wireless netowrk
• Click Show Advanced Options
• Select Manual Discovery
• Type in IP address of printer (you can find this on printer press the wireless button on the display, the ip address should be listed, usually something like 192.168.0.<Something>)
• Click Next
• Your device should appear in the list and selected.
• Click Next
• Click Add Printer
• You will probably need to enter your root/admin user name and password

Now the printer should be installed and also the scanner. 

You can check that the scanner is installed by using terminal and entering "scanimage -L" this will show you all scanning devices possibly webcams also.

You should be able to start up the scanning software and start scanning.

This link helped me :-)