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How to replace the Drum Unit of Brother MFC-9700 Multifunction Printer

  1. Open the front printer cover, in order to be able to locate the exhausted drum unit.
  2. Grab the exhausted drum unit by its front side and pull towards you to take it out of the printer, and then detach the still useable toner cartridge by pulling it out of the drum unit while pushing down the blue lock release lever, which is located below its right side. Please note that the contact area of the toner cartridge and the sensitive surface of the photoconductive drum (on the top side of the new drum unit) must not be touched, in order to be avoided permanent damages to these components, and resp. future print quality issues.
  3. Unpack the new drum unit, and immediately after that, you must insert the toner cartridge into the new component until you hear a click and the blue lock lever on the right side of the new drum unit is automatically raised.
  4. Insert the new drum unit and toner cartridge assembly into the printer, and then hold down the [>] button until the following message ''Replace DRUM 1.Yes 2.No'' appears on the control display.
  5. Confirm the new drum unit installation by pressing [1].
  6. Wait for the following message ''Accepted'' to appear on the LCD, and then close the front cover of your Brother MFC-9700 Multifunction Printer.