Many of the biggest printer companies try to pretend they are being environmentally friendly. They all have a ‘recycle scheme’ where you send back old cartridges for recycling. The truth is that all these cartridges could easily be refilled and used several times and the only impact would be their profits would fall.
Check out the links on these pages and see if your laser printer cartridge can be refilled with compatible toner. Most can even if the printer companies do their best to stop you ! Remember there is simply no need to recycle, refurbish or throw most laser cartridges away after only one print run, this is only to boost printer manufacturers profits.