This article explains how to print to a wireless printer from an Android phone using the default printing service, a printer brand's app, or another third-party app. Instructions apply to Android 9.0 and later.
How to Print from an Android Phone
The easiest way is to use the default printing service on your Android phone.
Go to Settings > Connected devices > Connection preferences > Printing > Default print service.
Tap Default Print Service to turn it On.