SDK to use with the GC420d printer



We are trying to communicate with a GC420d printer through a web application. As per my understanding, over the network printing is not supported by this printer. Using Link-OS or Browser Print also does not seem to be as options since their support pages do not state this printer as supported. So it seems we are left with writing a Windows service to write ZPL to the USB serial port.


1. Is my understanding correct?

2. Is there a .NET or Java SDK which I can use to easily communicate with the printer? (check online status, send file to print)

3. Or is there any other way to print html/css through the printer?


Best regards,