Since iOS 16.2 update, cannot print to network printer. My non-apple devices are printing just fine.

Hi,

It would probably be correct to assume that your printer is an AirPrint-compatible model (see About AirPrint - Apple Support), unless you have to use a special app from the printer manufacturer.

If all settings are OK, and if there is a problem with device discovery, you could try the following power-cycle sequence (with these waiting times; do not forget the router): Power off the Wi-Fi router, the printer, the iPhone, the iPad, and all other connected 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 and the iPad. Finally, power on all other devices/computers.

Followed all the above steps and still not able to print to an Epson ET-2850(is AirPrint compatible). The iPad Air 4 gen, iPhone 8 , iPad 2 and iPhone SE all unable to find AirPrint printer.

The network printer is same as all iOS devices; the wifi Router sees printer and iOS devices but no communication between them.

...and it is not a problem related to paper source settings, etc?

https://files.support.epson.com/docid/cpd6/cpd60206.pdf (p 25, p 61)

Any change in router settings affecting the handling of mDNS/Bonjour?