chemical processing trays are vertically stacked and rolled in horizontal corrugations traversing the length of the sink a print under development is directly transferred vertically between chemical processing trays across a print sponge with a print gripper each print is uniformly processed in a chemical processing tray by rolling the tray ensuring uniform distribution of the processing chemical without manually agitating the print the water rinse step of the print development process is accomplished in an oscillating wash bath wherein the water is continuously circulated over and between the prints being rinsed each of the processing chemical trays may be angled downward for emptying into a basin which can also provide a sink as well as safe recycling disposal following print processing a hinged top cover provides a secure mounting for a water filter faucet a combination light table and safe light and a scaled work surface when closed application_number US 34898194 A description as illustrated in fig1 4 and 19 the photographic processing apparatus is a single integrated unit for photographic processing the elements required for photographic processing that are normally arrayed throughout a darkroom are found on in or underneath generally rectangular corrugated sink housing 10 as shown in fig1 the chemical processing trays 11 12 and 13 containing developer stop bath and fixer respectively an oscillating print wash bath 14 and a sink basin area 15 are disposed within corrugated sink housing 10 top cover 21 22 is supported by and encloses corrugated sink housing 10 water filtration and faucet system 16 is mounted on top cover 21 and a safe light and.