The present disclosure includes a method and system for applying markings on a food product by applying a radiant energy to the food product in such a manner to form a permanent marking thereon. These systems and methods include laser configurations that provide for optimal marking while minimizing the quantity of egg stabilizers needed. The present disclosure further includes systems and methods for using shutters to provide a safety shutter mechanism for preventing accidental laser beam escape when guards are removed in addition to protecting the lens. The disclosure also has the benefit of preventing machinery damage, improving machinery performance and play a vital part in achieving predictable performance which is essential to safe operation of the radiant energy source. The present disclosure also includes methods and systems for protecting ink cartridges used in egg carton printing.
