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Top 5 Mistakes When Changing Toner on HP LaserJet Pro M402DN – And How to Avoid Them

At a Glance

  • This guide will walk you through the steps on how to change toner on your HP LaserJet Pro M402dn, ensuring you get back to printing crisp, professional documents in no time.
  • Print a test page to ensure the new toner cartridge is installed correctly and the printer is functioning properly.
  • Check the toner level indicator on the printer’s display to monitor the toner level.

Are you experiencing faint prints or seeing the dreaded “low toner” message on your HP LaserJet Pro M402dn? Don’t worry, replacing the toner cartridge is a simple process. This guide will walk you through the steps on how to change toner on your HP LaserJet Pro M402dn, ensuring you get back to printing crisp, professional documents in no time.

Gathering Your Supplies

Before you begin, make sure you have the following items ready:

  • New Toner Cartridge: Ensure you have the correct toner cartridge for your HP LaserJet Pro M402dn. The recommended cartridge is the HP 12A (also known as the HP CF212A).
  • Gloves (Optional): Wearing gloves can help prevent toner dust from getting on your hands.
  • A Trash Bag: You’ll need a bag to dispose of the old toner cartridge.

Step 1: Power Off and Open the Front Cover

1. Power off your HP LaserJet Pro M402dn by pressing the power button.
2. Open the front cover by pressing the release button located on the right side of the front panel.

Step 2: Remove the Old Toner Cartridge

1. Locate the toner cartridge: It’s located on the right side of the printer.
2. Gently pull the toner cartridge out of the printer by its handle.
3. Place the old toner cartridge into the trash bag.

Step 3: Prepare the New Toner Cartridge

1. Remove the new toner cartridge from its packaging.
2. Carefully remove the protective cover from the toner cartridge.
3. Shake the toner cartridge gently to distribute the toner evenly.

Step 4: Install the New Toner Cartridge

1. Align the new toner cartridge with the slot in the printer.
2. Gently push the toner cartridge into the slot until it clicks into place.
3. Close the front cover.

Step 5: Power On and Initialize

1. Power on the HP LaserJet Pro M402dn.
2. Wait for the printer to initialize. This may take a few minutes.

Step 6: Print a Test Page

1. Print a test page to ensure the new toner cartridge is installed correctly and the printer is functioning properly.

Time to Print!

Congratulations! You have successfully changed the toner cartridge on your HP LaserJet Pro M402dn. You are now ready to print high-quality documents again.

Toner Cartridge Care and Maintenance

  • Store toner cartridges in a cool, dry place, away from direct sunlight.
  • Avoid touching the toner drum inside the cartridge, as this can damage the cartridge.
  • Recycle your used toner cartridges. Many retailers offer cartridge recycling programs.

Answers to Your Most Common Questions

Q: How often should I change the toner cartridge?
A: The frequency of toner cartridge replacement depends on your printing volume and usage. Check the toner level indicator on the printer’s display to monitor the toner level.
Q: Can I use a generic toner cartridge?
A: While using generic toner cartridges might seem cost-effective, they can sometimes cause printing problems, such as streaks or smudges. It’s recommended to use genuine HP toner cartridges for optimal performance and print quality.
Q: What should I do if the printer still shows a “low toner” message after replacing the cartridge?
A: If the low toner message persists, try restarting the printer. If the issue remains, contact HP support for assistance.
Q: How do I dispose of the old toner cartridge properly?
A: Most toner cartridges are recyclable. Check with your local recycling center or HP for proper disposal instructions.
Q: Can I refill the toner cartridge myself?
A: While refilling toner cartridges can be a cost-effective option, it is not recommended for most users. Refilling can void the warranty and may lead to printing issues.

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About the Author
Davidson is the founder of Techlogie, a leading tech troubleshooting resource. With 15+ years in IT support, he created Techlogie to easily help users fix their own devices without appointments or repair costs. When not writing new tutorials, Davidson enjoys exploring the latest gadgets and their inner workings. He holds...