It's an Epson product. If a driver exists, it would be located where the manufacturer puts it - likely Epson's web site.
(All hardware support always has come from the hardware manufacturer - including the software/drivers to allow a device to communicate with an operating system.)
Looking here:
https://download.epson-biz.com/modules/pos/index.php?page=all_prod
... I see that they start their list of that product line at TM-T88III... And goes up to TM-T88V? So unlikely it is supported in Windows 7 by Epson.