Toner cartridge life expectancy is generally about 6000-10000 page, after long-term use later, we will find the output of the manuscript image is shallow, and there are serious black spots stripes on the printed paper, even we repair it and it will not back to the before, At this time that we can be sure the life of the cartridge is really to the end, then we need to be replaced print cartridge now. Replacement of the cartridge that is not so difficult as we say, however it is not easy to we say that also, we should pay attention each detail otherwise it will effect printer other components. We will show one type cartridge Brother DR730 replacement for your reference, please check below detail information.

First of all, turn off the power of the printer to remove the toner cartridge, and then clamp the side of the metal pin with pliers, carefully pull it out outwards (or directly into the pin, open the cartridge and then removed it), under normal circumstances, then we can find Toner cartridge can be divided into two parts, with a magnetic roller is part of the powder, and photosensitive selenium is the collection of waste toner.
　
First look at the powder part, we should screw down one side of screw which is located on the non-magnetic roller, then we should open the plastic cover, and clean up the toner cartridge and magnetic roller with a soft brush. After above process, we can re-install the magnetic roller, and hard press to the magnetic roller and prevent it from the original place. At this time, we can be equipped with toner, firstly, we should shake the toner slowly into the silo, and then fixed the upper part of the magnetic roller, and finally, we should gently turn the magnet roller ring a few times in order to facilitate the carbon powder evenly attached.

Take a look at the collection section, in this part we have to replace the new drum. In the same way, remove the fixing pin and remove the drum, and then clean the waste toner in the waste toner collection section (try to be as clean as possible to avoid affecting the print quality of the new drum). After above process, we can install a new drum now, please pay attention to that the photoconductive drums are usually divided into right and left parts. The new drum generally have a dark ink-proof seal, please do not tear off before installation to prevent exposure, after we installed and checked all detail is correct, then we can move the dark seal.

In this way, the powder feeding part and the collecting part are separately finished. Finally, the two parts should be installed and restored according to the situation when they are disassembled, and then the fixed bayonet pin is inserted, and the DR730 toner replacement work is completed.