Ambient condition sensor for a photosensitive media cartridge

An image-forming arrangement comprising:

• an image-forming device for forming a latent image on a photosensitive media;
• and
• a media cartridge for holding a stack of photosensitive media therein, said media cartridge being adapted to be inserted into said image-forming device to permit a conveyance of the photosensitive media to the image-forming device, said media cartridge comprising an ambient condition sensor for sensing ambient conditions around media in said cartridge, such that a development of the photosensitive media in said image-forming device is based on the sensed ambient conditions;
• said ambient condition sensor comprising a transparent top layer, a humidity responsive layer, a conductive layer and a base support layer, wherein a rate of response to ambient conditions of at least one of said transparent top layer, said humidity responsive layer, and said base support layer matches a rate of response to ambient conditions of the photosensitive media in the media cartridge.