How to find your HP printer serial number
HP LaserJet P1006 Printer - Specifications
HP Officejet Pro 8500A e-All-in-One Printer series - A910
How to find product and serial numbers: Printers
HP ENVY Photo 7100 All-in-One Printer series - Specifications
Find product and serial numbers for HP PCs, printers, and accessories
ZT400 Series Industrial Printers
Hi smart app - HP Support Community - 8529896
HP Deskjet 1000 Printer (CH340A#B1H) : Office Products
Laser printing - Wikipedia