Help required for Sam4S Kitchen Printer

Hi guys,

New to forum and seeking advice on how to solve problem with kitchen printer. Using second Sam4S with KitchenPrinter.exe. However, unable to get it to print. Get error message: ie_Open - device already open

Would very much appreciate advice on how to resolve this issue. Thanks!

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Connected via? Serial, USB, network?

Serial port on the POS thru an adapter and RS232 to the printer. Thanks

USB to serial?
These adapters can be problematic.

Thanks. I connected the second printer (kitchen) to the port used by the primary printer (next to POS) and it works. I am just not able to set that up as the secondary printer thru kitchenprinter.exe. I think it may be a configuration issue.

I have had/seen similar issue with these serial to USB converters before, they are not ideal for use it multiples.
Don’t have any suggestions, do you not have any serial ports on your machine?