I need to adjust my printer to receive air print

Apple AirPrint is a driverless connection protocol - that requires a compatible Printer to be wirelessly connected to your WiFi network. A high proportion of modern printers intended for Home, SoHo and Business environments now support AirPrint. AirPrint in iOS/iPadOS has been enhanced to permit selection of paper size and print quality - subject to support by the associated printer.

If your printer is not compatible with AirPrint, there are alternatives.

Some printer manufacturers have a suitable companion App that provides Print capabilities for mobile devices, often using a web-based print service. Others can print directly if the App supports other network printing protocols.

You might also consider connecting a non-AirPrint printer to a PC or Mac computer - and install a “helper application” that allows the computer to emulate AirPrint capabilities; one such option is Readdle Printer Pro, for which suitable software for PC is available. A link to the PC software is included from this page:

https://readdle.com/printerpro

A further alternative is to consider installing a dedicated Print Server Appliance on your network - and connect your printer to this. One example is the Lantronix xPrintServer.

The remaining solution is to simply replace your printer with one that is AirPrint capable.

Is your printer AirPrint capable?

https://support.apple.com/en-us/HT201311

If not, check the printer's manufacturer's website for an app

that may provide the features you desire.

There is nothing to adjust. If it is AirPrint compatible and is connected to the same WiFi network as your Apple devices then it will just work. Not settings to adjust, no drivers to install. Just have everything on the same WiFi network.