If you've previously used OEM cartridges in your inkjet or laser printer, and then recently changed them with remanufactured or compatible cartridges. If you're getting an error message informing you that the new cartridge isn't being recognized and it's not filled even though you're aware that it's filled. Don't panic! It's merely a sign that your printer isn't able to process the chip on the new cartridge. In the majority of cases, a "Cold Start" will fix the problem. This blog “Why does my Brother printer keep going offline” was created to show you fix this issue.