[Eddie], frustrated by the high cost of ink cartridges set out to build a continuous inking system. This would mean that the cartridges would be filled from larger, cheaper reservoirs of ink ...

The reclaimed carbon can be used to make black ink for ink jet printers. Sounds like a great way to recycle tires. Now they just need to figure out what to do with the rest of the tire material.

The cost of ink varies by manufacturer, model, and type. A monochrome printer has a single cartridge, while color printers typically use four cartridges and sometimes as many as ten different colors.