1. Check Toner Levels:

   • Verify the toner levels through the printer's control panel or software on your computer. Low toner levels can lead to print quality issues.

2. Replace Toner Cartridge:

   • If the toner levels are low, replace the toner cartridge with a new, genuine HP cartridge. Using genuine cartridges ensures compatibility and quality.

3. Inspect Cartridge Installation:

   • Ensure the toner cartridge is correctly installed. Open the printer cover, remove the toner cartridge, and then reinstall it securely, following the manufacturer's instructions.

4. Clean the Cartridge Contacts:

   • Turn off the printer and unplug it.
   • Remove the toner cartridge and gently clean the electrical contacts on the cartridge and inside the printer with a soft, lint-free cloth.

5. Update Printer Firmware:

   • Check if there are any firmware updates for your HP printer on the official HP website. Updating the firmware can resolve compatibility issues and improve printer performance.

6. Perform a Cold Reset:

   • Turn off the printer.
   • Disconnect the power cable from the rear of the printer.
   • Wait for at least 30 seconds before reconnecting the power cable and turning the printer back on.

7. Check for Paper Jams:

   • Paper jams can sometimes trigger toner errors. Open the printer and carefully check for any jammed paper. Remove any obstacles that may be affecting the toner cartridge.

8. Reset Toner Cartridge Settings:

   • Access the printer's menu or control panel and navigate to the toner settings. Reset or recalibrate the toner cartridge settings to default.

9. Inspect for Damage:

   • Examine the toner cartridge for any physical damage. If you find any, replace the cartridge with a new one.

10. Contact HP Support:

    • If the issue persists after trying the above steps, contact HP customer support for further assistance. They may provide additional troubleshooting steps or guide you through a resolution.

Always use genuine HP cartridges to avoid compatibility issues and ensure optimal print quality. If you are uncertain about any steps or the issue persists, seeking professional assistance from HP support or an authorized service provider is recommended. Regular maintenance and using quality supplies can help prevent toner-related problems in the future.