Hi, thank you for contacting JustAnswer.com. My name is Russell. I will do my best to provide the right answer to your question.
If the old cartridge, when put in, makes the error message about new toner or the like, go away, then something is quite wrong with the new toner cartridge! put the old one back in if it is not too dirty with disposing of, etc., then get a newer new toner cartridge, and try it out.
The 'new' cartridge that produced the error message should, once it is verified that the second toner cartridge eliminates the error, be packed up in original packaging and sent back for a refund! as defective, and promptly.
Note: if the second new/newer cartridge is remanufactured or 'compatible', or a refilled cartridge, then it may turn out to be defective for a good reason: cheap re-usage to less than excellent specs, or poor quality control.
Note again: If you need further help, please state your printer's maker and model #. And if you don't need further help, please rate my answer. Thanks, ***** ***** luck.