- Download the printer driver – Epson TM-T20 and install
https://download.epson-biz.com/modules/pos/index.php?page=single_soft&cid=5125&scat=31&pcat=3
EPSON Advanced Printer Driver for TM-T88V
https://download.epson-biz.com/modules/pos/index.php?page=single_soft&cid=5131&scat=31&pcat=3
2. Download TM Virtual Port Driver Ver.8.60a and install
https://download.epson-biz.com/modules/pos/index.php?page=single_soft&cid=5485&scat=36&pcat=9
3. During the installation – map the virtual port to COM30
4. In inTennis goto File > Config > Docket Printer > Setting and then type COM30 for COM Port and click on print test page.