Replacing the Consumables11-7Replacing the Drum CartridgeThe drum cartridge consists of a photosensitive drum (drum) and a development unit. An electric charge isfirst projected to the drum and develops a print image on the drum's surface.When the drum cartridge reaches its usable life-span, the following messages appear on the printerconsole.Important:• Make sure that the power is on when replacing the drum cartridge. Switching the power off erases theprint data in the printer and information accumulated in the memory.• Do not expose the drum cartridge to direct sunlight or strong light.• To protect the drum cartridge against bright light, close the front cover within 3 minutes. If the frontcover remains open for more than 3 minutes, print quality may deteriorate.• Make sure that nothing touches or scratches the surface (black-colored film) of the belt unit. Scratches,dirt, or oil from your hands on the film of the belt unit may reduce print quality.Replacement ProcedureUse the following procedure to replace the drum cartridge unit.1. Push the side button (right side) and open the front cover.2. Turn the four lock levers of the drum cartridge counterclockwise by 90 degrees.Important:•Do not turn the lock levers by more than 90 degrees with an excessive force.•Make sure that nothing touches or scratches the surface (black-colored film) of the belt unit.Scratches, dirt, or oil from your hands on the film of the belt unit may reduce print quality.Message ActionReplace Drum Cartridge Soon.Life Almost OverThe drum cartridge needs to be replaced soon. Have a newcartridge ready.
