HP Color LaserJet Managed MFP E77800 Series, HP LaserJet Managed MFP E72500 Series - User Guide

3. Install the new TCU by pushing in on both sides
until the tabs snap into place.
4. Close the front door.
Remove and replace the toner collection unit (E72525, E72530, E72535 models)
Follow these steps to replace the toner collection unit (TCU).
1. Open the front door.
ENWW Replace the toner collection unit 49