Apparently Brother is now manufacturing devices with a web interface that allows the display of printer ink cartridge levels. This is not available on older devices, although the information could be displayed with a Windows program. I was always peeved that I needed to get up and view the information on the device screen when using Linux.
I have discovered that this command can show the information in a command line terminal for my device at IP address 192.168.0.5 on my local LAN.
Code:
ipptool -tv ipp://192.168.0.5/ipp/port1 ipp-1.1.test | grep "marker-levels\|marker-names"
