Lexmark T630, T632 & T634 supplies are designed for the highest quality output, page after page, thanks to the technical experience, high production standards & rigorous product testing. The supplies are designed for easy customer installation & quality performance, from the first page to the last. The 21, 000-page High Yield Print Cartridge improves productivity & reduces hidden operating costs by reducing scheduled interventions & ordering. It's also friendlier for the environment, requiring fewer cartridges & less packaging. Lexmark T630, T632 & T634 supplies are not compatible with other Lexmark Printers.