Lexmark MS431dn vs OKI B731dn
OKI B731dn costs $20 more upfront but prints cheaper per page — it pays that back after about 2,765 pages.
Cost to run
| Total cost of ownership | Lexmark MS431dn | OKI B731dn |
|---|---|---|
| After 1 year | $428 | $405 |
| After 2 years | $527 | $460 |
| After 3 years | $625 | $515 |
OKI B731dn costs more upfront but 0.7¢ less per page. It overtakes Lexmark MS431dn on total cost after about 2,765 pages — roughly 6 months at your 500 pages/month.
Specs compared
| Spec | Lexmark MS431dn | OKI B731dn |
|---|---|---|
| Print technology | laser | laser |
| Color support | mono | mono |
| Device type | single-function | single-function |
| Functions | ||
| Print speed (mono) | 42 ppm | 55 ppm |
| Resolution | Black: 2400 IQ (2400 x 600 dpi), 600 x 600 dpi | 1200 x 1200 dpi |
| Duty cycle (monthly) | 80,000 pages | 280,000 pages |
| Recommended volume | 8,000 pages/mo | — |
| Automatic duplex | Yes | Yes |
| Automatic document feeder | No | No |
| Display | 2-line All Points Addressable (APA) monochrome LCD display | — |
| Wi-Fi | No | No |
| Ethernet | Yes | Yes |
| USB | Yes | Yes |
| Bluetooth | No | No |
| Paper sizes | Letter, Legal, A4 | Letter, Legal, A4 |
| Weight (kg) | 9.34 | — |
Cartridges & running cost
Lexmark MS431dn
Cheapest to run: Lexmark MS/MX431, MX432 Return Program 20K Toner Cartridge — $327.99 · 1.6¢/page · 20,000pg yield
OKI B731dn
Cheapest to run: OKI B731dn Black High-Yield Toner Cartridge — $329.95 · 0.9¢/page · 36,000pg yield
Which should you buy?
- High-volume or cost-conscious printing: OKI B731dn — about 44% lower cost per page (0.9¢ vs 1.6¢).
- A lower upfront budget: Lexmark MS431dn — $20 less to buy — it would take about 2,765 pages before the pricier one's lower running cost pays off.
- The fastest printing for a busy or shared office: OKI B731dn — 55 ppm vs 42 ppm mono.
Where to buy
Lexmark MS431dnBuy — $329.99
OKI B731dnBuy — $349.99
Compare with other models
Frequently asked questions
- Which is cheaper to run, the Lexmark MS431dn or the OKI B731dn?
- The OKI B731dn — its cheapest black cartridge works out about 44% cheaper per page (0.9¢ vs 1.6¢ mono).
- Which costs less to buy, the Lexmark MS431dn or the OKI B731dn?
- The Lexmark MS431dn is about $20 cheaper upfront based on current prices.
- Is the OKI B731dn worth the higher price?
- It costs about $20 more upfront but prints cheaper per page, so it pays that back after roughly 2,765 pages. Past that point it's the cheaper machine to own.
- What are the main differences between the Lexmark MS431dn and the OKI B731dn?
- Print speed (mono): Lexmark MS431dn 42 ppm, OKI B731dn 55 ppm. Resolution: Lexmark MS431dn Black: 2400 IQ (2400 x 600 dpi), 600 x 600 dpi, OKI B731dn 1200 x 1200 dpi. Duty cycle (monthly): Lexmark MS431dn 80,000 pages, OKI B731dn 280,000 pages.