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HP Color LaserJet Managed MFP E77422, E77428, E78223, E78228 - Replace the toner cartridge

Introduction

Replace the toner cartridge if you receive a message on the printer, or if you have print quality problems.

Toner cartridge information

This printer indicates when the toner cartridge level is low and very low. The actual toner cartridge life remaining can vary. Consider having a replacement cartridge available to install when print quality is no longer acceptable.
To purchase cartridges, contact the managed service representative. Make sure to have the product model number, which appears on the product label on the back of the printer. To check cartridge compatibility for the printer, go to HP SureSupply at www.hp.com/go/SureSupply. Scroll to the bottom of the page and verify that the country/region is correct.
Do not remove the toner cartridge from its package until it is time to replace it.
  caution:
To prevent damage to the toner cartridge, do not expose it to light for more than a few minutes. Cover the green imaging drum if the toner cartridge must be removed from the printer for an extended period of time.
  caution:
If toner gets on clothing, wipe it off by using a dry cloth and wash the clothes in cold water. Hot water sets toner into fabric.
note:
Information about recycling used toner cartridges is in the toner-cartridge box.

Remove and replace the toner cartridges

Follow the steps below to remove and replace a toner cartridge.
In addition to the instructions provided in this document, you can view the following video of how to remove and replace the toner cartridges:
  1. Open the front door.
    Figure : Open the front door
  2. Release the toner cartridge latch and pull the cartridge straight out of the printer.
    Figure : Release the cartridge latch and remove the cartridge
  3. Remove the new toner cartridge from its package. Save all packaging for recycling the used toner cartridge.
    Figure : Remove the new cartridge from its package
  4. Hold both ends of the toner cartridge and rock it to evenly distribute the toner that is inside. And then, remove the seal.
    Figure : New toner cartridge
  5. Align the toner cartridge with its slot, insert the toner cartridge into the printer, and secure the latch.
    Figure : Install the new cartridge and secure the latch
  6. Close the front door.
    Figure : Close the front door
  7. Pack the used toner cartridge into the box that the new toner cartridge came in. See the enclosed recycling guide for information about recycling.
    In the U.S. and Canada, a pre-paid shipping label is included in the box. In other countries/regions, go to www.hp.com/recycle to print a pre-paid shipping label.
    Adhere the pre-paid shipping label to the box, and return the used cartridge to HP for recycling.
    Figure : Recycle the used toner cartridge

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