Patent ID: 7764902

Claim:
A method for converting a first printer cartridge to a second printer cartridge, each of the first and second printer cartridges comprising a waste hopper, the waste hopper comprising a first side and a second side, the first side comprising a drum gear and a bushing positioned around the drum gear, the first side further comprising a first end plate, the first end plate comprising a plurality of positioning pins, the second side comprising a second end plate, the second end plate comprising a plurality of positioning pins, the method comprising: a. removing the plurality of positioning pins of the first end plate and the second end plate of the first printer cartridge; b. determining positions of the positioning pins on the first end plate and the second end plate of the second printer cartridge; c. providing at least one replacement pin resembling at least one of the positioning pins of the second printer cartridge; d. attaching a plurality of replacement pins to the first end plate and the second end plate of the first printer cartridge at the positions that were previously determined; and e. replacing the bushing of the first printer cartridge with a bushing resembling the bushing of the second printer cartridge.