I have a new iPhone 15 and it will not print but my iPhone 12 would print

>I do not have an air printer but my printer is on the network.

Hi,

Please clarify, do you mean that your printer is not an AirPrint-enabled model (see the list in About AirPrint - Apple Support), or just that it is not a wirelessly connected printer?

AirPrint works with wireless (Wi-Fi) or wired (Ethernet) network connections, but it must be a supported printer. For an unsupported printer, a special iOS app from the manufacturer would be required.

Please post back with the exact printer make and model.

Also, do check whether the printer firmware has been updated.

If there is a problem with AirPrint device discovery, try a full power-cycle sequence in this order (including the router): Power off the Wi-Fi router, the printer, 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 iPhone. Finally, power on all other devices/computers.