Patent ID: 7248813

Claim:
A system for sealing a cartridge having a drum assembly and a toner hopper wherein the cartridge has an edge having a length defined between a first end and a second end opposite to the first end wherein the cartridge has a continuous weld between the drum assembly and the toner hopper from the first end to the second end of the cartridge and further wherein the cartridge has a first side and a second side wherein the first side and the second side connect the first end to the second end of the cartridge, the system comprising: a separator insertable at the second end of the first side and the second side of the cartridge wherein the separator separates the drum assembly from the toner hopper to a point between the first end and the second end of the cartridge; and a welding means having only a single ultrasonic welding horn wherein the welding means ultrasonically welds the cartridge along the edge of the cartridge wherein the welding means has a width defined between a first side and a second side wherein the cartridge is welded between the point and the second end of the cartridge at the first side and the second side wherein the first side of the cartridge is welded by the first side of the welding means and further wherein the second side of the cartridge is welded by the second side of the welding means.