7310 networked, connected, but doesn't print

Question

I have had this Officejet 7310 for a few years now, and doesn't usually give me problems.  i have it hooked up over  a wired network, and the computer recognizes the connection.  I can see the printer status through the browser window (192.168.1.5), and have reinstalled the software twice.  After reinstalling it the first time, I got it to print but the next morning it wasn't working again.
On the printer itself, when I try to get the Instant Share settings, it says "Hp Instant Share is not set up or a network is not available."  The Instant Share has been doing this for a few months, and I haven't been able to us ethe "Scan to" feature for a long time, but I can just use the HP Director on the computer na dget it to print, scan, access the memory card, whatever.  now it seems that it is not getting the signal.  I have items inthe queue, but they won't print.  Yesterday, it was giving me errors, like "Failed to connect to printer" and stuff, but i can't get it to do it now.
I tried the Diagnostic Tool , adn that didn't work, I reset the router, that didn't work.  I'm running out of ideas.
I'm running on XP, but I think it's printer issues, not computer issues.

Answer 1

OK, I think it IS a computer problem.  Your computer is looking for your printer by its IP address.  A new router (usually) issues completely different IP addresses, so your computer is probably having a hard time finding it.
Let's start by deleting the printer in Control Panel > Printers.  Then re-add the printer in this manner:
1. Click "Start" button --> Printers and Faxes.
2. Under Printer Tasks, click "Add Printer".
3. Click "Next" button on the Add Printer Wizard window.
4. Select "Local printer attached to this computer". Deselect "Automatically detect and install My Plug and play printer". Click "Next".
5. Under Select a Printer Port option, select "Create a new port" and select "Standard TCP/IP Port" and click "Next" button.
6. In the "Welcome to the Add Standard TCP/IP printer port wizard" make sure that the printer is turned on and connected to same network that your computer is connected to. Click "Next" button.
7. Under "Add Standard TCP/IP Printer Port" enter the printer's IP address. Click "Next" then click "Finish".
8. Now, select HP from the list of manufacturers, select your printer from the list of Printer models and click 'Next' button.
9. If you can't find your printer, you'll need to find the install CD and use the "Have Disk" option to select one of the hp*.ini files. Alternatively, you can select another HP printer model from the same type.
10. Add the print spooler name and click "Next".
11. Click "Next"
12. Click "Next" and then "Finish"
Say thanks by clicking "Kudos" "thumbs up" in the post that helped you.
I am employed by HP