Have you ever wondered how much it costs to print to your desktop printer?
Calculating cost per page for printer toner is easy. Simply divide the amount you pay for toner by the manufacturer's expected yield — the number of pages you can expect to get from your toner cartridge if you run it to the end. You can typically find the expected yield by looking up the toner number at the manufacturer's website.
For example, HP sells Q7553A toner for $89.99 and states the yield at 3,000 pages. $89 / 3,000 = .0296 per page. So, you are close to 3 cents per page if you squeeze every last drop of toner out of it. If you take the toner out early, your page cost is much higher.