Hi,
From the printer front panel click the Wireless icon, the 2nd icon at the top-right.
Select Restore Network Defaults and confirm by selecting Yes.
Click the Wireless icon once again, select Wireless Setup Wizard and follow the steps to connect the printer to your new router.
Reboot your PC, open the HP Envy 110 software, select the Utilities tab and click on Update IP Address.
Type your new IP, click on Update / Save and confirm.
Note: You may locate the IP for your new router by clicking the Wireless and selecting Display Network Configuration.
Regard,
Shlomi