HP Color LaserJet Enterprise Multifunction M680 Printer series - Manual (Page 50)

5. Insert the bottom of the new unit into the
product first and then push the top of the unit
until it clicks into place.
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6. Close the front door.
NOTE: If the toner collection unit is not
installed correctly, the front door does not close
completely.
To recycle the used toner collection unit, follow
the instructions included with the new toner
collection unit.
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38 Chapter 3 Parts, supplies, and accessories ENWW