Scanning does not work over the blue network

Hello, I made it so that the blue network could reach the green one and I could print via the minolta printer. The problem is that I can’t scan from the minolta to the blue network. What can I do?

What I find the best method to make this happen is to assign the printer/scanner a static IP address, then add firewall rules both ways from that ip to the color network. Even though it should communicate from green to blue, declaring the ip in the firewall rules presets this route which is sometimes necessary if the device requires a response in a certain time or it opens an additional port in its process. Which I image the later is the situation.

I even assign the static device a host name which 1 makes it easier to access its web page and 2 provides a name identifier to software that prefers to see a network name.