However, after properly connecting everything, it didn't work as I expected.
First of all I turn on the printer, connect it to the adapter and, as I connect the usb side to the PC, it finds the "USB Printing Support" on device manager, the same way as every USB printer, however the windows popup says something like "No printer found" in that little window.
Then, I go to "devices and printers" and find this "USB2.0-Print", which can't be used to print anything.
I tried to google for the issue and found some people with the same problem, but most of them didn't solve it, and the others didn't explain properly how they fixed it, but it looks like there might be some driver messing involved.
I myself tried to download some drivers and to add manually the printer to the USB Port, but it didn't work. While messing around, the printer made some noises, but didn't print anything.