Patent ID: 7253826

Claim:
A thermal development apparatus comprising: a thermal development section for heating a photosensitive thermal developable recording material to visualize a latent image recorded on an image-forming layer on both faces of the photosensitive thermal developable recording material by a heating unit, a cassette holder section for holding a cassette that houses the photosensitive thermal developable recording material therein, a conveyor unit for taking the photosensitive thermal developable recording material out of the cassette held in the cassette holder section and conveying the photosensitive thermal developable recording material to the thermal development section, and a control unit for controlling at least one of a heating temperature and a conveyance speed in the heating unit of the thermal development section, a moisture sensor to determine the moisture content of the photosensitive thermal developable recording material by detecting a moisture content inside or around the thermal development apparatus, wherein the control unit is provided with a moisture correction information of the photosensitive thermal developable recording material and the control unit suitably corrects and controls the at least one of a heating temperature and a conveyance speed in the heating unit from a moisture content of the photosensitive thermal developable recording material on the basis of the moisture correction information thereof during thermal development of the photosensitive thermal developable recording material.