And this does not affect the normal use of the toner cartridges. If you are a loyal Brother printer user, you must know that Brother toner cartridges have no chips before 2017. Before we explain why, we have to mention the changes to Brother toner cartridges. Usually, no toner error in Brother printer is mainly caused by four reasons. Why Brother Printer Says No Toner after replacing toner? This blog will introduce you in detail the reasons for the 'no toner' error and how to deal with it. Have you ever encountered a situation where the Brother printer says no toner after replacing toner cartridge? If so, you have come to the right place.