A method for handling a Timer_Status_Prohibit timer in a wireless communication system includes starting the Timer_Status_Prohibit timer for a Radio Link Control Acknowledged Mode entity, performing a re-establishment procedure for the RLC AM entity, and stopping the Timer_Status_Prohibit timer after re-establishment of the RLC AM entity. In an electronic content distribution system, such as those providing music available by digital downloading or streaming technologies, a user may ordinarily pay a full price to receive the music. The electron emissive oxide layer is formed with a depression on a surface thereof facing the electron beam transmissive aperture in the first electrode. The multiple gun control parameters are calculated by the controller from a fixed Pickoff distance from a part identification sensor to the spray guns.