1.2 Parts and Functions1-71.2.2 InternalFigure 1-31 Black Toner ContainerThis container holds black (K) toner. You must replace the container when the tonerrun out.2 Main Charger UnitThis is an electrical component used to transfer the toner onto the drum unit. The maincharger unit must be cleaned when you replace the toner container.3 Yellow Toner ContainerThis container holds yellow (Y) toner. You must replace the container when the tonerrun out.4 Magenta Toner ContainerThis container holds magenta (M) toner. You must replace the container when the tonerrun out.5 Cyan Toner ContainerThis container holds cyan (C) toner. You must replace the container when the toner runout.6 Power Cord ConnectorThis connector accepts the power cord supplied with the printer.CautionIn order to maintain operability and print quality, this printer operates a cooling fan for 30minutes even after the power is turned off. For this reason, you should not unplug thepower cord even after turning off the power.