Hello,
You can exclude the discounted products from your ribbon by creating the following conditions in the conditions tab of your ribbon:
Condition Type: Product
Condition Property: Discount Ammount or Discount Percentage
Operator: Equal To
Value: 0
Note: If your discounted products are discounted by using the Special Price you will need to create a condition like:
Condition Type: Product
Condition Property: Has Special Price
Operator: Equal To
Value: False
Note: Do not forget to clean your application cache after you adjust the settings.
Hope that helps!
Regards,
Anton Ivanov
Nop-Templates.com