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Ars Technica is reporting that you better not believe your inkjet printer when it tells you the cartridge is empty.

Epson commissioned tests (by TÜV Rheinland) to measure the environmental impact of ink waste and to back up its assertion that it’s less wasteful — as well as cheaper — to use a printer that has individual color tanks.

From Ars Technica:

A new study says that on average, more than half of the ink from inkjet cartridges is wasted when users toss them in the garbage. Why is that interesting? According to the study, users are tossing the cartridges when their printers are telling them they’re out of ink, not when they necessarily are out of ink.

I’ve been printing on my laser printer for months now with the toner warning LED flashing constantly. Didn’t even shake the toner yet…