Thermally developing apparatus

DETAILED DESCRIPTION It is an object of this invention to provide a thermally developing apparatus capable of suppressing the generation of such unevenness of density and stabilizing the density of image.
The above object can be attained by the following structures.
(1-1) A thermally developing apparatus, comprises: a heating member to heat a thermally developable material; supplying means for supplying the thermally developable material in a predetermined supplying direction to the heating member; the heating member comprising plural regions aligned in a direction substantially perpendicular to the supplying direction of the thermally developable material by the supplying means; plural heaters each provided separately to one of the plural regions and to heat a corresponding one of the plural regions of the heating member; and a controller to control heat generation of the plural heaters, the controller controlling at least one of the plural heaters in accordance with a size of the thermally developable material which is a length substantially perpendicular to the supplying direction.
(1-2) In the thermally developing apparatus of (1-1), the controller controls at least one of the plural heaters in such a manner that a control target for at least one of the plural regions is made different from a control target for the other regions in accordance with the size of the thermally developable material.
(1-3) In the thermally developing apparatus of (1-1), the thermally developing apparatus further comprises a size sensor to detect the length of the thermally developable material substantially perpendicular to the supplying direction as the size of the thermally developable material, wherein the controller controls heat generation of at least one of the plural heaters in accordance with a detection result of the size sensor.
(1-4) In the thermally developing apparatus of (1-1), a control target for at least one of the plural heaters at the timing that the supplying means supplies the thermally developable material is made different from that at the other timing