Using the Test Page function is a good way to test the communication between the printer and computer. The test page is sent directly from the printer driver and this enables you to determine if the problem is related to a communication issue or a problem with the application that is being used.
Before continuing, check the following:
Check the connection from the printer to the computer.
Check the printer is powered on.
Make sure there are no red or amber lights on the printer's LEDs or error messages on the LCD panel.
Follow the instructions below to print a test page:
Click the Apple menu and select System Preferences.
Click Printers & Scanners.
The name of your Epson printer should be present in the printer list. Click on the name of the printer.
If an Epson printer is not present, the printer is not installed. Install the driver for your version of macOS according to the method recommended in the below article: