A method for managing power control of enhanced dedicated channel uplink channels of at least one user equipment that is located on a femtocell base station, is provided herein. The ratio change unit lowers, in the first state, the ratio by reducing the light quantity of the rear face reflected light that reaches the viewpoint in comparison to the second state. The device has two downward portions curvedly attached to, and, suspended, from each end of the horizontal section. Finally, the encoded data is printed over the reference region of the substrate, thus effecting the print of the security document.