Why is my wireless printer not printing from my phone?
Restart all devices to clear network and hardware error states. Turn off the printer, and then turn it on again. Disconnect the power cable from the router, wait ten seconds, reconnect the cable, and then wait for the internet connection to complete. Turn off your phone or tablet, and then turn it on again.
Why can’t I print from my iPhone all of a sudden?
Restart your Wi-Fi router. Then restart your printer. Move your printer closer to your Wi-Fi router. Update your printer and Wi-Fi router with the latest firmware from the manufacturer.