In order to download Pinter drivers, please visit official manufacturer's web page:
https://epson.com/Support/Point-of-Sale/Thermal-Printers/Epson-TM-T88IV-%28Legacy-Product%29/s/SPT_C31C636084
Go to Downloads > Select your operating system > click on Drivers + in order to expand the driver list
Select Advanced Printer Driver option and click on Download
Once driver is downloaded, open containing folder and extract drivers from Archive. After that, run APD_456dE and click Next
Accept Terms and conditions agreement and hit Next
Select Minimum Setup type and click on Next
On a printer configuration screen click on Add button
Select Printer Model from the drop-down list > select connection type (Create a USB Port) and click on
Right after you see your printer model in the list, click on Next
On the next page click on Next and driver installation will be started
Once done hit Finish button.