Non-leaking and easily remanufactured toner cartridge

An electrostatographic reproduction machine comprising:

• (a) a movable photoconductive member having an image bearing surface;
• (b) means for forming a latent image electrostatically on said image bearing surface;
• and
• (c) a development apparatus comprising a non-leaking and easily remanufactured toner cartridge including:
• (i) a cartridge housing defining a first housing portion having a sump for storing toner, and a second housing portion containing development components, said first housing portion and said second housing portion having mateable rims;
• (ii) an ultrasonically meltable adhesive layer interleaved between said mateable rims of said first housing portion and said second housing portion;
• and
• (iii) an externally identifiable ultrasonic weld for defining a path along which to cut said cartridge housing for remanufacturing, said externally identifiable ultrasonic weld being formed by ultrasonically welding only said ultrasonically meltable adhesive layer, for bonding said mateable rims of said first housing portion and said second housing portion, thereby resulting in a non-leaking and easily remanufactured toner cartridge.