To scan from an HP printer to your iPhone, first download the HP Smart app from the App Store. Open the app and connect your printer. Tap on "Scan" in the app, select your scan preferences, then place your document on the scanner. Hit "Scan" on your iPhone, and the scanned image will appear in the app, ready to save or share directly. https://medium.com/@rashasavvy22/how-do-i-install-hp-print-service-plugin-for-iphone-f9b6863076b0