Raspberry Pi GPIO with feedback


Hello I’m using Raspberry Pi that I use to control my printers using relay connected to GPIO pins.
And this project is best thing I could ever imagine for me but I’m total n00b at MQTT. I figured out how to turn on and off printer but I don’t recive update to Google Home when I ask for status it is allways OFF. On Pi I have Mosquitto with this settings:

I don’t know if I need to send anything back or what actually I need to do.
I whould be really happy if somebody could help me understand what I need to do.