Lexmark MS810/MS811/MS812 Series Maintenance Kit

This is a full maintenance kit designed to replace the key internal components that wear down over time, such as the fuser unit and pick rollers. By swapping these out, you restore the printer's ability to handle paper smoothly and fuse toner correctly, preventing common jams and print quality issues.

Your Lexmark printer will typically display a specific maintenance message on its control panel when the component life has reached its limit. If you notice persistent paper jams, streaks on your pages, or unusual noises during operation, it is likely time to install this kit.

This is a genuine Lexmark OEM (Original Equipment Manufacturer) part. Using the official 40X8420 kit ensures full compatibility with your MS and MX series printers and maintains the reliability standards Lexmark intended for your machine.

Yes, the kit is designed for user installation. However, because it involves accessing the internal fuser assembly, you should consult your printer's user manual or the included installation guide to ensure you follow the correct safety procedures and power-down steps.

Absolutely. Over time, components like the fuser degrade, which can lead to faded text or toner that easily rubs off the page. Installing this kit restores the proper heat and pressure needed for crisp, professional-grade laser output.

This kit has a shelf life of 24 months. If you are keeping it on hand for future repairs, store it in a cool, dry place away from direct sunlight to ensure the components remain in optimal condition until you are ready to use them.