An electrophotographic photosensitive member that can not easily cause charging lines even where it is an electrophotographic photosensitive member employing as a conductive layer a layer containing metal oxide particles is disclosed. The camera module includes a housing, a lens received in the housing, an image sensor received in the housing for capturing an image of an object, a first ferromagnetic or magnetic element fixed to the housing, a plurality of metallic connecting pins electrically connected to the image sensor and exposed at an opposite side of the image sensor to the lens. For each platform and language on which a product developer wants a product tested, the product developer provides a test packet that defines tests that the product developer wants conducted on the product in that group. Furthermore, the first and second mating surfaces define a mating interface or plane which is inclined relative to a horizontal plane.