First ensure fax line and and network cable is disconnected (If no FAX or network dont worry) dont want any print jobs or faxs arriving before you run Developer and drum checks after replaceing both.. Second go to the service mode and clear the drum and developer counters touch end then power off the using main power switch left hand side rear. You will be replacing both do not just replace the drum. Ensure your drum comes with what is called a drum cleaning blade, along with your developer. Secondly open the right side door and remove the Image unit. Dissamabley the image unit four silver screws two per side. Then pull each side apart from the base and lift up. T change developer remove the 3 alummin screws fro the base top. Then dump the old developer DO NOT USE A VACUUM CLEANER THE STATIC ELECTRICITY WILL DESTROY THE SENSOR AT THE BOTTOM OF THE DEVELOPER UNIT!!!!!!!!!! Turn the gears on the side so that large roller that runs along th\e front of the developer unit turns downward. keep turing it unit all of the old developer is out. DO NOT USE WATER OR WET RAGS to cleanup use a brush. Add your new developer. One Bag only. Reassamable. Now for the Drum. Remove both side covers one side has small plasitic been so be careful. Reove drum remove three screws to remove old cleaning blade this section you can use a vacuum clean turn the gears to get the hold section clean. install the new cleaning blade and drum DO NOT TOUCH THE DRUM use only the side gears. Replace the SCTRON Grid and Charge Corona UNIT. REassaembly Image Unit.Then POwer up the machine, Enter service mode and run Fuction F8. Do not may copies or prints before this or you will have to buy new developer again.
IF YOU REALLY WANT TO DO THIS?????? HAVE SERVICE TECH COME OUT AND DO THIS
Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/normanj_7893313f0751935f
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