An actuator (1), for a printhead, wherein the actuator (1) comprises: an actuating element (2) an obturator assembly (3), engageable with the actuator element (2); wherein the actuating element (2) is operable to assume, depending on a drive signal applied thereto: a rest configuration, in which the obturator assembly (3) is at a first distance (X0) from a reference plane (A); a first deformed configuration, in which the obturator assembly (3) is at a second distance (X1) from the reference plane (A) greater than the first distance (X0), and a second deformed configuration, in which the obturator assembly (3) is in contact with the reference plane (A), wherein: a control module (4) is configured for regulating a drive signal to the actuating element (2) to cause the obturator assembly (3) to move between the rest configuration and the first deformed configuration during a first operating cycle, to reduce the effects of impact on the obturator assembly.