116 Replacing a Toner Cartridge10 Let the cartridge fall back into position, making sure it is locked into place. Close thetop cover.• If the toner cartridge is not correctly installed, the top cover will not closecompletely. Do not try to force the cover to close, as this could damage it.If you cannot close the top cover completely, open it and check theinstallation of the toner cartridge.• Do not leave the top cover open for long time after installing a tonercartridge.Every time you replace a toner cartridge, we recommend you also clean the transferguide area with a soft clean cloth (see pages 118 to 119).11 Turn the printer on using the power switch.12 Wait a few moments for the printer to warm up. When you see the READY display,toner cartridge installation is complete.If any other message appears, refer to the Messages Table (see page 128).