Officers at Bogotá Colombia's El Dorado airport found 40 sacks of black zinc oxide printer toner that had been adulterated with cocaine. The one-ton shipment was bound for Sinola Mexico, where it would likely have been further diluted with methamphetamine before being sold as the genuine article to an unwitting US-based toner refilling company.
From HP.com:
Purchasing non-HP ink and toner can wind up costing you in the end – producing blotchy, streaky, faded prints. Original HP ink and toner cartridges deliver superior prints 100% of the time.
[via]
