User Guide 2-15Replacing the Toner CartridgeGetting to Know Your Printer4. Grasp the front of the paper tray and extend it until the right and left lock tabs in the papertray move inwards and lock automatically.5. Squeeze the length guide and slide it to the desired paper size.6. Squeeze the right width guide and slide it to the desired paper size.7. Load the paper with the side to be printed facing up and with all 4 corners aligned.8. Close the lid of the paper tray.9. Push the paper tray firmly into the printer.Replacing the Toner CartridgeThe Toner Cartridge should be replaced when it reaches the end of its print life. The TonerCartridge prints up to 18K (DX-B350P)/ 21K (DX-B450P) images. The printer will produce awarning on the Operator Panel to inform you when the remaining toner amount is low. You canpress START/STOP to continue printing with low toner.When installing the Toner Cartridge, take note of the following:• Do not subject it to direct sunlight or strong light.• Do not touch the surface of the photosensitive drum.• Do not stand or place the Toner Cartridge upside down. The drum might get damaged.
