If you are experiencing a UV undercure problem due to lack of power or wattage in your drying system, you need to check with your dryer manufacturer as the reflectors may need to be adjusted and cleaned. You can check with you UV ink maker regarding adding additional photoinitators to your UV ink formulation. However, simply adding more photoinitators to UV ink will not compensate for a lack of UV lamp power. Running the press slower will provide more time under the UV lamps, increasing the cure. Make sure the separations have the correct total area coverage (TAC) percentage 300-320%, not 400%.