The team cheered, relieved that the printer was finally working. Alex documented the setup process, in case they needed to refer to it later.

But just as they thought they were done, the POS system started throwing error messages. It seemed that the OPOS driver had installed correctly, but the POS software wasn't communicating with the printer properly.

"Okay, let's see if we can get this to work," Alex said, carefully entering the printer's settings into the POS software. "We need to set the port to COM1 , the baud rate to 19200 , and the parity to None ."

The portable driver can be used on any POS terminal that supports the Epson TM-T88V printer, without requiring installation.