hi there,
I'm creating a web-based PHP app in Laravelle where I want to generate a barcode (could be either 1D or 2D) for a serial number and then print that to a GK420D.  The printer is actually locally attached to a Windows PC where this app is running in Chrome.
 
I've seen references to Browser Print as well as to this program:  GitHub - qzind/tray: Browser plugin for sending documents and raw commands to a printer or attached device.
I'm interested in any suggestions, sample code or guideline recommendations.  
 
Thanks in advance!
Peter