Developing apparatus

In an apparatus for developing one face of photosensitive sheet or strip stock, of the type having an applicator roller, a metering roller for metered supply of developer liquid to said applicator roller, a profiled roller for pressing the stock against said applicator roller, and guide means for feeding and guiding the stock, the improvement comprising:

• a cylindrical core forming part of said profiled roller and extending over an entire width of said apparatus,
• a coating of permanently elastic material completely covering said core, and a plurality of mutually staggered deformable nubs of said permanently elastic material protruding radially from the surface of said coating remote from said core,
• further comprising at least one pressing means associated with said profiled roller for pressing against said nubs substantially in a radial direction to the roller, a first point of contact of said profiled roller with said pressing means preceding a second point of contact of said profiled roller with said applicator roller, and the stock to be developed first flowing through the first point of contact between the profiled roller and the pressing means and then through the second point of contact between the profiled roller and the applicator roller.

Method for developing one face of photo sensitive sheet or strip stock with an apparatus having an applicator roller, a metering roller for metered supply of developer liquid to said applicator roller, a profiled roller for pressing the stock against said applicator roller, and guide means for feeding and guiding the stock between the profiled roller and the applicator roller, said method comprising

• providing the surface of coating of the profiled roller with fine radially projecting, mutually staggered, permanently elastic nubs,
• deflecting and circumferentially spreading apart adjacent nubs which come in contact with the stock in the region of the applicator roller as the stock passes through, thus creating an additional tightening of the stock in the region where the nubs are bent aside.