How do I dispose of empty toner cartridges?
To discard used toner cartridges in an environmentally safe manner, printer manufacturers have created programs to reclaim or dispose these cartridges. Due to their efforts, we are recommending that each printer manufacturer’s procedure be followed. This is an easy process guided by their own steps. The quick links to these procedures can be found below; simply find your manufacturer and follow the steps laid out to return your used toner cartridges:
Xerox/Konica Minolta/Sharp/HP - https://www.xerox.com/perl-bin/product.pl?mode=recycling&XOGlang=en_US&referer=ComDoc