HP M551DN manual Replace the toner collection unit

7. Align the print cartridge with its slot and insert the print cartridge until it clicks into place.

8. Close the front door.

Replace the toner collection unit

Replace the toner collection unit when the control panel prompts you.

NOTE: The toner collection unit is designed for a single use. Do not attempt to empty the toner collection unit and reuse it. Doing so could lead to toner being spilled inside the product, which could result in reduced print quality. After use, return the toner collection unit to HP’s Planet Partners program for recycling.

NOTE: If printing documents that require heavy toner coverage, the toner collection unit can fill quickly. If printing these types of documents, HP recommends that you have another toner collection unit available.

1. Open the front door. Make sure that the door is completely open.

104 Chapter 7 Print cartridges, toner collection unit, and other supplies ENWW