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