A lawsuit against HP for their HP LaserJet printers giving low toner warnings too soon has reached a Proposed Settlement

In the following HP CLJ (HP Color LaserJet) printers and their corresponding print cartridges, the printer ceased printing when it was determined that the print cartridge had reached end-of-life:

CLJ 1500 Printer Series CLJ 4550 Printer Series
CLJ 2500 Printer Series CLJ 4600 Printer Series
CLJ 2550 Printer Series CLJ 4610N Printer
CLJ 2820 Printer CLJ 4650 Printer Series
CLJ 2830 Printer CLJ 5500 Printer Series
CLJ 2840 Printer CLJ 5550 Printer Series
CLJ 3500 Printer Series CLJ 8500 Printer Series
CLJ 3550 Printer Series CLJ 8550 Printer Series
CLJ 3700 Printer Series CLJ 9500 Printer Series
CLJ 4500 Printer Series

This resulted in users of these printers being forced to change the cartridges, even when their existing cartridges still had some toner left in them.

HP was sued for damages and an end to “deceptive and unconscionable practices” and has now come to a settlement.

According to HP: "The Proposed Settlement provides for a number of benefits, including HP’s agreement to post on its website a description of the operation of the Affected Models as it pertains to any interruption or termination of printing caused by toner level in their print cartridges, including a description of the mechanism in certain printers that allows users to “override” any termination in printing caused by the level of toner in their print cartridges. This description can now be found at the following site. HP also will contribute up to $5,000,000 in e-credits to be distributed to class members who purchased, leased, received as a gift or otherwise acquired in the United States a printer on the Affected Models list"