HP Color Laser 150nw

Hi,

Also, the printer, the Mac computer, and the iPhone must be connected to the same network (subnet). Use infrastructure mode (a Wi-Fi router, typically, your home Wi-Fi network). If you so wish, instead of connecting this printer wirelessly to the network, a wired (Ethernet) connection to one of the LAN ports of the Wi-Fi router would be possible.

In case of difficulties with AirPrint, and if the setup is OK, you may want to try the following procedure:

Power off the Wi-Fi router, the printer, the Mac computer, the iPhone, and all other devices/computers. Wait two to three minutes. Power on the router. Wait two to three minutes. Power on the printer. Wait a minute or two. Power on the Mac computer. Power on the iPhone. Finally, power on all other devices/computers.

Add a printer on Mac – Apple Support (UK)

Reset the Mac printing system to solve a problem – Apple Support (UK)

The HP Color Laser 150nw is listed as a supported model in About AirPrint - Apple Support.

Is it set up under Sys Prefs>Printers & Scanners?

What happens if you hit CMD+p to print a document?

What Is An Airprint Printer | HP® Tech Takes

Use AirPrint to print from your iPhone, iPad, or iPod touch - Apple Support