B710 B720 B730 User’s Guide > 115Cautions on Handling the Drum/Toner CartridgeWhen handling the drum/toner cartridge, take note of the Donot subject it to direct sunlight or strong light.• When installing the drum/toner cartridge, select alocation away from strong light and try to finish theinstallation within 5 minutes.• Do not touch the surface of the photosensitive drum. Donot let the drum/toner cartridge stand or place it upsidedown. The drum might be damaged.• A drum shutter protects the photosensitive drum fromlight. Do not open the drum shutter.• Although the toner is not harmful to the body, wash it offwith cool water immediately if your hands or clothes arestained with it.• It is recommended to use the drum/toner cartridgewithin 1 year after opening it.Replacing the Drum/Toner Cartridge1. If the optional offset catch tray is installed, lift it out of theway.2. Turn the printer off.
