Ambitious performer. Big-league features.
The MX420 Series offers print speed of up to 42 pages per minute (letter)¹, plus fax, automatic document feeder, and copy functions powered by a standard multi-core processor and a full gigabyte of memory. Connect with standard USB, gigabit ethernet, and Wi-Fi, depending on model. Plus, 350 sheets of standard input can expand up to 900 with optional trays.Compare Models
Performance and flexibility
Multi-core processing power and flexible media handling put outstanding printing capabilities at your fingertips.
A 1 GHz dual-core processor with 1 GB of standard memory gives you the power to do a combination of faxing, printing, copying, and scanning for maximum productivity. And you can be confident that your complex file with images, charts and small print will look just the way you designed it.
Versatile media handling
Print what you want, in the size you want. The included media tray adjusts to paper sizes from A6 to legal, while the 100-sheet multipurpose feeder accepts smaller media and envelopes to give you even more design and output possibilities.
MFPs built to protect and save you money
Designed with enterprise-level security, these energy-efficient devices get the job done.
Lexmark's comprehensive approach to product security is a design and engineering mandate across our entire product portfolio. Our security features help keep your information safe—in the document, on the device, over the network, and at all points in between.
Make every watt count with energy management features that reduce power consumption whether active or in sleep mode. Lower fusing temperature and automatic management of processor cores based on workload help meet rigorous Energy Star 2.0 requirements. That benefits the planet and your budget.
What model is best for you?
Choose from the features to find available models that target your needs.
|Model||Print Speed||Input Capacity (standard/maximum)||Memory (RAM)|
|MX421ADE||42 ppm||350/900||1 GB DDR4|
¹Print and copy speeds measured in accordance with ISO/IEC 24734 and ISO/IEC 24735 respectively (ESAT). For more information see: lexmark.com/isospeeds