Does using compatible toner cartridges help the environment?

Absolutely. Compatible cartridges use a recycled "core" that greatly reduces the amount of non-biodegradable waste in our landfills. Discarded laser cartridges on the other hand, add four pounds of non-biodegradable waste per cartridge. It is estimated that 100 million laser printer cartridges and 400 million inkjet printer cartridges are produced each year. Recycling these 500 million cartridges will save an estimated 4 million cubic feet of landfill space. The manufacturing process used to create new cartridges also depends heavily on imported fossil fuels. For this reason, the Environmental Protection Agency (EPA) has mandated the use of remanufactured cartridges for all federal agencies.