123inkjets carries high quality laser toner cartridges and supplies for your Lexmark MX421adn. With great prices, excellent customer service and superior products, you can order online and save time & money.
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Reliability for a Lifetime
Our 100% satisfaction guarantee means you can shop with peace of mind. Our cartridges have been tested and monitored for performance quality and page yield. In the event that you are dissatisfied with your purchase, we will do our best to make it right. All of our LD-brand compatible ink and toner products are backed by a lifetime guarantee.