Patent ID: 8133665

Claim:
A method of forming a black-and-white image, comprising: providing a silver halide photographic photosensitive material comprising a support and at least one silver halide photosensitive layer provided on the support, subjecting the silver halide photographic photosensitive material to imagewise exposure, and subjecting the silver halide photographic photosensitive material to a development and fixing treatment to form a black-and-white image thereon; wherein the at least one silver halide photosensitive layer comprises silver halide grains, the average equivalent sphere diameter of the silver halide grains contained in the at least one silver halide photosensitive layer is 0.30 μm or less, the silver halide photosensitive layer comprises four or more silver halide emulsions having mutually different average equivalent sphere diameters, and the thickness between a surface of the support at a side at which the silver halide photosensitive layer is provided and a surface of the silver halide photosensitive layer at a side opposite to the support is 10 μm or less.