43856301TH Rev.3 123 /Oki Data CONFIDENTIAL 6. Periodic Maintenance6.4 How to clean inside of printerClean inside of the printer.Toner can adhere to the metal shaft located in between the fuser and the cyan imagedrum cartridge depending on the print patter. Perform cleaning of inside of the printer iftoner has adhered to the metal shaft.(1) Turn off the power of the printer.(2) Press down the OPEN to open the top cover.Personal injuries may occur.The fuser unit gets very hot. Do not touch the fuser unit.(3) Remove the image drum cartridge.1. Remove the four image drum cartridges and place them on a flat workbench.2. Cover the removed image drum cartridge with a black paper.Note! • The image drum (green tubular portion) is highly inherently-brittle. Bevery careful when handling it.• Be very careful not to expose the image drum to direct sun light orintense light (light of approx. 1500 lux or more). Do not leave it under thenormal illumination even indoor for 5 minutes or longer.)O IOPEN button