Ar5127 didint supply toner to the developer thank.

Question

i supply new toner in to the machine ar 5127.since i install the toner into the machine it's dosine supply i dont know what to doo,i change the developer after about 500 copies the will not chap again thjaks.i will like to com for training if you people doo training,i am an engineer from nigeria please notify me if you doo.