1. Introduction
This manual provides essential instructions for the proper installation, operation, and maintenance of your Lexmark 24B6511 Black High Yield Toner Cartridge. Adhering to these guidelines ensures optimal performance and longevity of your toner cartridge and compatible Lexmark printer.

Image of the Lexmark 24B6511 Black High Yield Toner Cartridge box, showing the product model number, compatibility with XC6152 and XC8155 printers, and the Lexmark brand logo.
2. Setup and Installation
2.1 Unpacking the Cartridge
- Carefully open the toner cartridge packaging.
- Remove the toner cartridge from its protective bag.
- Do not shake the cartridge excessively or expose it to direct sunlight.
2.2 Preparing the Printer
- Ensure your Lexmark XC6152 or XC8155 series printer is powered on.
- Open the front cover or access door of the printer to expose the toner cartridge slots. Refer to your printer's specific user manual for exact instructions on accessing the toner area.
- Allow any existing cartridges to cool if the printer has been in recent use.
2.3 Installing the Toner Cartridge
- Locate the empty black toner slot within the printer.
- Gently slide the new Lexmark 24B6511 toner cartridge into the corresponding slot until it clicks securely into place. Ensure it is fully seated.
- Close the printer's front cover or access door. The printer will typically perform a short calibration cycle.
3. Operating Instructions
3.1 Printing
- Once the toner cartridge is installed and recognized by the printer, you can resume normal printing operations.
- Ensure your printer drivers are up to date for optimal performance.
3.2 Monitoring Toner Levels
- Toner levels can be monitored through your printer's control panel or the Lexmark printer software installed on your computer.
- The printer will typically display a warning message when toner levels are low, indicating that a replacement cartridge should be prepared.
4. Maintenance
4.1 Handling and Storage
- Store unused toner cartridges in their original, sealed packaging in a cool, dry place away from direct sunlight and extreme temperatures.
- Avoid touching the imaging drum on the cartridge, as oils from your skin can affect print quality.
4.2 Cartridge Replacement
- Replace the toner cartridge when the printer indicates it is empty or when print quality significantly degrades.
- Follow the installation steps in Section 2.3 to replace an empty cartridge.
- Dispose of used toner cartridges responsibly according to local regulations or Lexmark's return program guidelines.
5. Troubleshooting
5.1 Print Quality Issues
- Faded or Light Prints: The toner cartridge may be low. Check toner levels and replace if necessary.
- Streaks or Smudges: Ensure the cartridge is properly seated. If the issue persists, the imaging unit or other printer components may require cleaning or replacement. Refer to your printer's manual.
- Blank Pages: Verify the cartridge is installed correctly. Check printer settings to ensure the correct paper tray and print options are selected.
5.2 Cartridge Not Recognized
- Remove the cartridge and reinstall it, ensuring it clicks into place.
- Power off the printer, wait 30 seconds, then power it back on.
- Ensure you are using a genuine Lexmark 24B6511 toner cartridge.
5.3 "Toner Low" or "Replace Toner" Message
- This message indicates the cartridge is nearing the end of its life or is empty. Prepare a new Lexmark 24B6511 cartridge for replacement.
- If the message appears immediately after installing a new cartridge, ensure it is a genuine Lexmark cartridge and is correctly installed.
6. Specifications
- Model Number: 24B6511
- Ink Color: Black
- Page Yield: Approximately 25,000 pages (based on ISO/IEC 19752)
- Compatibility: Lexmark XC6152, Lexmark XC8155 series printers
- Item Weight: 3.08 pounds (1.4 Kilograms)
- Product Dimensions: 7.87 x 9.84 x 7.87 inches
- Manufacturer: Lexmark
- UPC: 734646596497
7. Warranty and Support
Lexmark toner cartridges are manufactured to high-quality standards. For information regarding warranty coverage, please refer to the official Lexmark website or the warranty documentation included with your printer.
For technical assistance or further support, please visit the official Lexmark support website or contact Lexmark customer service directly. Ensure you have your printer model and toner cartridge model (24B6511) available when seeking support.
Note: Use of non-Lexmark brand toner cartridges may void your printer's warranty.





