Network Printer: CNMSM6Y.EXE

hi there. i just installed comodo firewall 2 days ago. i have 3 computers setup behind a nat router and i can still print to my canon mp780 shared on one of my other computers but the issue i am having is everytime i go to print from a new application i have to allow access to CNMSM6Y.EXE

i tried adding it to the component monitor and not selecting a parent application, just allowing all but this doesnt seem to work as i still get the popup, i.e. i go to print from firefox i have to approve, then go to print from openoffice and have to approve and so on.

does anyone know what i can do to allow this as if it everytime i go to print from a new program i will have to continue to allow this.

thanks again