Step 1: Shake the new toner cartridge horizontally to make the toner more uniform.
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Step 2: Peel off the white sticker of the toner cartridge shown above.
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Step 3: Install the new toner cartridge into the printer.
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Step 4: Press the blue handle to position as shown in the picture to ensure the new toner cartridge is locked. Finally, install them together in your printer.
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