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How Your Printer Knows it is Low on Tone...

How Your Printer Knows it is Low on Toner

Once upon a time, a laser printer had no way of communicating that a cartridge was nearly out of toner until it simply began spitting out blank pages.  Today, most laser printers monitor toner levels through different means and give low-toner warnings before running out completely.  Following are three varying methods utilized for detecting low […]