Lexmark · Monochrome

Lexmark MX431DWE

A compact monochrome laser MFP that prints up to 42 ppm, duplex‑enabled, and pops a first page in 5.9 s. It offers a 50‑sheet ADF, color scanning, and wireless mobile printing via AirPrint and Mopria, ideal for small workgroups.

Print speed
42 ppm mono
Display
2.8-inch (7.2 cm)
Scanner Type
Flatbed scanner with DADF (single-pass duplex automatic document feeder)
ADF Feeder
50 sheets pages
Free delivery 24-hr quote turnaround Authorized Lexmark reseller Lease or buy outright
In stock
Lexmark 29S8100
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 MX431DWE 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 primarily prints black‑and‑white documents.
  • You print 1,500–3,000 pages a month, mostly mono, with an occasional need for duplex copying.
  • You rely on wireless or wired networking and mobile printing from iOS/Android devices.
  • You need a fast first page for quick document turnovers and a modest ADF for simple multi‑page jobs.
Works fine

You'll be happy if...

  • You print 3,000–5,000 pages a month—capacity is fine, but high‑volume workloads may hit the limit.
  • You need color scanning; the MFP supports it, but the performance isn't on par with dedicated color scanners.
  • You’re replacing an older mono MFP that lacked Wi‑Fi; this model adds that connectivity.
Look elsewhere

Skip this if...

  • You print under 1,000 pages a month—color toner sets are expensive and the unit’s capacity is overkill.
  • You need high‑volume printing above 5,000 pages per month; the duty cycle will be a bottleneck.
  • You require 11x17 (tabloid) paper; this model only handles A4 and Legal sizes.
  • You need advanced finishing features like stapling or binding—this chassis doesn’t offer them.
Full specifications

Every spec, no guessing

The Lexmark MX431adw is a compact monochrome laser multifunction printer designed for small workgroups that demand speed and reliability. It delivers up to 42 pages per minute, duplex printing is built‑in, and the first page is ready in just 5.9 seconds. Before you buy, note it comes with a 250‑sheet main tray and a 50‑sheet ADF, plus a 150‑sheet output bin. The printer supports A4 and Legal paper and connects via USB, Ethernet, or Wi‑Fi, with mobile printing via AirPrint and Mopria. Secondary features include color scanning at 600 × 600 dpi, fax capability, and an intuitive 2.8‑inch touch panel. The machine runs on a 1‑GHz dual‑core processor with 256 MB of memory, making it easy to integrate with existing office software.
Print
Print technology
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
Scanner type Flatbed scanner with DADF (single-pass duplex automatic document feeder)
Paper & Media
Automatic document feeder 50 sheets pages
Connectivity
Display 2.8-inch (7.2 cm)
Physical & power
Form factor No data
Usage class No data
Manufacturer Lexmark
Model 29S8100
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 →
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 MX431DWE

The printer itself

Lexmark MX431DWE in original Lexmark packaging. , roughly 13.3 x 16.2 x 14.4 in.

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 MX431DWE

Need replacement toner or parts for your Lexmark 29S8100? 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.

Quote
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 MX431DWE

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 MX431DWE. 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