Lexmark · Monochrome Multifunction

Lexmark MX431DW

The Lexmark MX431adw is a fast monochrome laser multi‑function printer built for small workgroups, printing up to 42 ppm and scanning with a 50‑sheet single‑pass duplex DADF. Its 5.9‑second first‑page‑out keeps downtime down, and it supports a 80,000‑page monthly duty cycle.

Print speed
42 ppm mono
Display
2.8 inches
Scanner Type
Flatbed scanner with 50-sheet DADF (single-pass duplex Automatic Document Feeder)
ADF Feeder
50 sheets pages
Connectivity
Ethernet · USB · Wi-Fi
Get a quote Buy supplies Call (888) 574-5120
Free delivery 24-hr quote turnaround Authorized Lexmark reseller Lease or buy outright
In stock
Lexmark 29S0500
Authorized Lexmark reseller Free shipping to 50 states Standard manufacturer warranty Install guidance by phone 30-day return policy
Is this the right printer for you?

Who the Lexmark MX431DW is actually for

Most equipment pages just tell you what a device does. Here's the honest version: when this machine is the right choice, when it's fine, and when you should look at something else. We offer equipment for every business need, but the right machine depends on your specific workflow.

Best fit

Pick this if...

  • You run a small office of 10–25 people that needs dependable black‑and‑white output and quick document turnover.
  • You print 800–8,000 pages a month and want a device that stays reliable under that load.
  • You require single‑pass duplex scanning for time‑critical workflows and want a 50‑sheet DADF.
  • You want a 2.8‑inch color touch screen for fast setup and control.
  • You’re okay with built‑in Ethernet, USB 2.0, and Wi‑Fi but need no advanced finishing features.
Works fine

You'll be happy if...

  • You print 4,000–6,000 pages a month – it can handle it, but the first‑page‑out is slightly slower than bundled B/W workstations.
  • You’re comfortable with a 2.8‑inch screen; a better one could be more efficient but is not required.
  • You need occasional faxing and single‑pass duplex scanning, but no stapling or finishing – the MX431adw meets those needs.
  • You’re satisfied with Ethernet+Wi‑Fi connectivity; wired Ethernet is also an option if Wi‑Fi reliability is a concern.
Look elsewhere

Skip this if...

  • You need color printing; the MX431adw is monochrome only.
  • You require more than 80,000 pages per month or a higher duplex speed than 18 spm.
  • You need 11×17 or larger media; the highest supported size is legal.
  • You need integrated finishing such as stapling, hole‑punch, or binding.
  • You rely on dual‑band Wi‑Fi or advanced security features not present in this model.
Full specifications

Every spec, no guessing

The Lexmark MX431adw is a monochrome laser multi‑function printer that delivers high‑speed output for small workgroups. It prints up to 42 ppm, double‑side at 18 spm, and scans with a single‑pass duplex 50‑sheet DADF, while the 5.9‑second first‑page‑out time keeps downtime minimal. Worth knowing before you buy: the unit shelves 250‑sheet tray and 100‑sheet multi‑purpose feeder, with a maximum paper input of 900 sheets, and 150‑sheet output. It supports USB 2.0, Ethernet, and Wi‑Fi connectivity, and handles 800‑to‑8,000 pages monthly with a duty cycle up to 80,000 pages per month. The 2.8‑inch color touch screen enables quick setup, and Lexmark’s software supports Windows, Mac, and Linux for printing, scanning, faxing, and network scanning. It works with media from A6 to Legal, and can scan directly to email or local network shares.
Get a quote on this model
Print
Print technology Multifunction
Print speed (mono) Up to 42 pages per minute
Print speed (color) Up to pages per minute
Duplex printing
First page out < 5.9 seconds
Copy & Scan
Capability Monochrome Multifunction
Copy speed Up to 38 ppm copies per minute
Scanner type Flatbed scanner with 50-sheet DADF (single-pass duplex Automatic Document Feeder)
Paper & Media
Paper size A4/Letter
Automatic document feeder 50 sheets pages
Max monthly duty cycle 80,000 pages per month
Connectivity
Wired Gigabit Ethernet (10/100/1000)
USB High-Speed USB Interface (Host / Device)
Wireless Wi-Fi 802.11b/g/n/ac/ax
Display 2.8 inches
Physical & power
Form factor No data
Usage class Small Office
Manufacturer Lexmark
Model 29S0500
How you can buy this printer

Buy it, lease it, or just reorder supplies

Three ways to get this printer, each priced to match how you actually use it. Most small offices lease because toner and maintenance are bundled. If you know what you need, buy outright. If you already own one, just reorder supplies.

Buy outright
One-time payment · yours to keep
Custom quote
Free delivery · Full warranty
  • Machine is yours the day it arrives
  • Starter toner supply included
  • Standard Lexmark manufacturer warranty
  • Install help by phone or remote session
  • Order your own toner when the starter runs out
Request purchase quote →
Most small offices
Lease & bundle
36- or 60-month term · toner included
Custom lease quote
Flexible terms · tailored to your volume
  • Printer + unlimited toner bundled
  • Maintenance and parts included
  • Upgrade to a bigger machine anytime
  • Typical lease payment is tax-deductible
  • One predictable monthly bill instead of surprise toner orders
Request lease quote →
Supplies only
Already own one? Just reorder.
Request pricing
Genuine OEM Supplies & Consumables
  • Genuine OEM toner cartridges designed for this model
  • Replacement drum units and maintenance kits
  • Certified high-yield or standard capacity options
  • Free shipping on qualifying orders
  • Auto-reorder option so you never run out mid-job
Order supplies →

Final lease rate depends on term length, credit profile, and bundled supplies. Outright purchase and supplies pricing varies with bundled warranty, install packages, and order volume. Request a quote for exact pricing.

Included with every order

What ships with the Lexmark MX431DW

The printer itself

Lexmark MX431DW in original Lexmark packaging. , roughly 13.3 x 16.2 x 14.4 inches

Starter toner

Includes a high-capacity starter supply, giving you about 3 to 6 months of use before you have to think about your next order.

Setup documentation

Lexmark quick-start guide, power cord, connectivity cables, and setup resources.

Setup call (if you want it)

Book a 20-minute setup call with our team. We'll walk through network configuration and onboarding.

Supplies & consumables

Genuine OEM Supplies for the Lexmark MX431DW

Need replacement toner or parts for your Lexmark 29S0500? We supply certified genuine OEM consumables to keep your machine printing at peak performance and ensure your manufacturer warranty remains fully protected.

Whether you require standard-yield cartridges for light printing, high-yield options for a lower cost-per-page, or replacement drum units, we carry the full lineup of compatible supplies for this model.

If you lease this printer through us, toner and drum are included. You never pay for supplies separately. That's usually the better deal once you add up real costs over 3 years.

Standard Toner

Standard-Capacity Toner

Standard OEM toner cartridge, best for offices with lower monthly print volumes.

Quote
each
High-Yield Toner

High-Capacity Toner BEST VALUE

High-yield OEM toner cartridge, delivering a lower cost-per-page for active offices.

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each
Drum / Kit

Drum Unit / Maintenance Kit

OEM-certified replacement components to restore original print quality and reliability.

Quote
each
Request Supplies & Toner Pricing →
Free quote · no obligation

Get a quote on the Lexmark MX431DW

Tell us how you want to pay (outright, lease, or supplies only) and what volume you run. You'll get a line-item quote back within one business day, from a specialist who actually works on these machines, not a general sales rep.

  • Real pricing, no runaround. Upfront monthly lease rate or outright price, plus shipping and any install add-ons itemized.
  • One business day turnaround. Quotes land in your inbox within 24 hours. Often faster.
  • No credit pull until you say yes. We don't ping your credit to give you a quote. Only if you sign.
  • Volume & bundled supplies. Tell us your monthly print volume and we'll price toner bundling so you don't get surprised.

Ready to put this printer to work?

Request a free, no-obligation quote on the Lexmark MX431DW. Lease, buy outright, or just order supplies. Quote in your inbox within one business day. Or call and talk to a specialist right now.

Get my free quote Or call (888) 574-5120