network interface status information request, --version option broken

[gnbl]

Hi, I just got a QL-820NWBc (v2.04) with network=wifi+ethernet to ensure I'd not run into linux driver problems with the USB only version.
Sure enough, there's the Brother "Raster Command Reference" that should allow printing bitmap data directly.
Once I figured out (no mention of it anywhere in the docs, port scan, web interface, random Brother FAQ) that the magic should happen on TCP port 9100 I tried to get in touch with the printer, i.e. querying the status with the "Status information request" command (ESC i S / 0x1B 0x69 0x53) - nothing.
This is one attempt:

   1b69610100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001b401b6961011b6953

The printer is also set to "automatic status notification mode" by default, according to the docs, yet nothing is output within the TCP connection (I am able to print in Raster mode).

Do you happen to know what might be going on?

Also, brother_ql --version apparently fails due to program (brother_ql) != package (brother_ql_next) - click raises

RuntimeError: 'brother_ql' is not installed. Try passing 'package_name' instead.

[ChanceHarrison]

The --version issue should be solved by #12.