Open Spotlight and type terminal.
From Color (default) to B/W.
Copy the line below and paste it in the terminal. Press enter and type your Macs password.
sudo find /etc/cups/ppd/ -name SOHO_FollowMe.ppd -exec sed -i '' -e 's/DefaultSelectColor: Color/DefaultSelectColor: Grayscale/g' -e 's/DefaultColorModel: CMYK/DefaultColorModel: Gray/g' {} \;
From B/W to Color.
Copy the line below and paste it in the terminal. Press enter and type your Macs password.
sudo find /etc/cups/ppd/ -name SOHO_FollowMe.ppd -exec sed -i '' -e 's/DefaultSelectColor: Grayscale/DefaultSelectColor: Color/g' -e 's/DefaultColorModel: Gray/DefaultColorModel: CMYK/g' {} \;