HP OfficeJet 8040 All-in-One Wireless Color Printer with Mobile Printing, HP Instant Ink or Amazon Dash replenishment ready (F5A16A) : Office Products - Amazon.com
How to Setup HP Envy 7640 e-All-in-One Printer
HP ENVY 7640 e-All-in-One series - Description of the Control Panel of the Product | HP® Support
HP ENVY 7640 e-All-in-One Printer series Setup | HP® Support