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if your issue was simply the detection of the right IN/OUT endpoint address for your printer (as in the case of "STMicroelectronics POS58 Printer"), you can download the latest version 15 of it and if the error continues to try https://hpetechnicalsupportnumber.com/blog/fix-hp-printer-not-activated-error-code-30-on-windows/ which help you in this.

I'm also waiting for the solution.