Don’t let this question trip you up. I have a legacy application that cannot be upgraded or replaced. The application can only use a printer on a serial port, but the custom printers we use do not have serial connections.
The current way this is working (with problems) is to run a USB-Serial converter, which connects to a Serial-Parallel connector. The current printer has a parallel port.
This produces a few errors, and the next model printer we are rolling out has no parallel connection, so we need a new solution to emulate a serial port on the PC, but port the data to the USB or NIC card on the printer.
I cannot change printer, computer or program. No upgrades to anything except the cabling in between. If there is a Virtual COM port driver or cable available, I cannot find it. Can anyone offer a possible solution to help?