Perhaps of little help here, but have you tried HP support for any guidance?.
It would seem as though the new router (suggest you provide model details) wants configuring to the printer.
This thread is now locked and can not be replied to.
Samsung Galaxy Note 7 review: An almost flawless smartphone, almost
1995-2015: How technology has changed the world in 20 years
Ghostbusters VFX: See how Iloura brought its ghosts to (un)life
MacBook deals: The best places to find MacBooks on sale in the UK
Synology invites you to visit them at Insomnia on 26th – 29th August. Book your tickets now and visit Synology.