Thermal activating device of thermal activation sheet and printer using the thermal activating device

摘要

A thermal activating device has an activation heating apparatus for heating and activating a heat sensitive adhesive on a thermal activator layer of a thermal activation sheet. A pressing device presses the thermal activation sheet into pressure contact with the activation heating apparatus to heat and activate the heat sensitive adhesive on the thermal activator layer of the thermal activation sheet. A detector detects the presence of the thermal activation sheet at a predetermined position along its path of travel. A pressure releasing device releases the pressure contact between the thermal activation sheet and the activation heating apparatus when the detector does not detect the presence of the thermal activation sheet at the predetermined position.