HP DESKJET 3700 series

I am currently working on a penetration testing project focused on an HP Deskjet 3700 printer that I have at home. While I’ve been making some progress, I haven’t been able to achieve any significant breakthroughs so far.

I would greatly appreciate any guidance or suggestions you might have on potential attack vectors or methodologies that I could explore further. I’m particularly interested in any tips related to firmware vulnerabilities, SNMP exploitation, or any other approaches that could help in identifying weaknesses in the device.

Thank you so much for your time and any insights you may offer.