A method and system for maintaining isolated data in an application is disclosed which data to be selectively isolated until a data client orders the changes to be committed or abandoned. The top laminate layer material may be a woven fabric, a nonwoven mesh, or a thermoplastic sheet material, and, in any case, has the heat-activated adhesive film bonded to one of its two sides. In this electric connection box 100, a fixing bracket 4 is formed at an intermediate portion of a rear surface of the connector 3 in a direction of the height thereof, and is fixed to the circuit board 10. When new print data is received while in the tear-off state, the recording paper transportation operation is prohibited and the tear-off state is continued until a preset delay time passes. The driving device alternately connects the control terminal to a first reference potential, during the first state, and to a second reference potential, during the second state.