Solution for How to Print from iPhone in HP Printer, Turn on your printer and wait for it complete the warm-up process.
Disconnect all the USB and Ethernet cables from the printer.
Connect your printer and Apple device to the same wireless network.
Open the document or photo that you wish to print from the Apple Device.
Tap on the Action icon and choose Print. Select the name of your printer under the Printer Options menu.
Tap on the Options to customize settings such as the size, source, etc.
Choose if you wish to print the document or photo in monochrome or color.
Set the number of copies that you wish to print and then tap the Print button.