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The OKI B431DN is a fast and dependable A4 monochrome laser printer designed for home offices, businesses and professional workgroups. Offering print speeds of up to 40 pages per minute, it provides efficient black-and-white document printing for reports, invoices, forms, correspondence and everyday office paperwork.
With a print resolution of up to 1200 × 1200 dpi, the OKI B431DN delivers sharp text and clear professional-looking documents. The built-in automatic duplex printing allows you to print on both sides of the paper, helping reduce paper consumption and making the printer particularly suitable for longer documents and high-volume office printing.
The printer provides flexible media handling for A4, A5, A6, B5, envelopes, labels and custom paper sizes. It features a 250-sheet main tray and a 100-sheet multipurpose tray, with the overall input capacity expandable up to 880 sheets using additional paper handling options. The 150-sheet face-down output tray helps keep printed documents organised.
Connectivity is provided through USB 2.0 and Gigabit Ethernet, allowing direct connection to a computer or integration into a compatible office network. Equipped with a 533 MHz processor and 128 MB RAM, expandable up to 640 MB, and supporting a stated duty cycle of up to 100,000 pages per month, the OKI B431DN is built for demanding printing environments. This unit is supplied USED and is sold without toner and drum.
| Condition | USED |
| Manufacturer | OKI |
| Model | B431dn |
| Printer Type | Mono Laser Printer |
| Print Format | A4 |
| Print Technology | Monochrome Laser |
| Print Speed | Up to 40 PPM (A4) |
| Print Resolution | 1200 × 1200 dpi |
| Duplex Printing | Automatic - Standard |
| Processor | 533 MHz |
| Memory | 128 MB RAM / Expandable to 640 MB |
| Main Paper Tray | 250 Sheets |
| Multipurpose Tray | 100 Sheets |
| Maximum Input Capacity | Up to 880 Sheets with Optional Expansion |
| Output Capacity | 150 Sheets Face-Down |
| Supported Media | A4, A5, A6, B5, Envelopes, Labels & Custom Sizes |
| USB Connectivity | USB 2.0 |
| Network Connectivity | Gigabit Ethernet |
| Monthly Duty Cycle | Up to 100,000 Pages |
| Toner | Not Included |
| Drum | Not Included |
The OKI B431DN is a fast A4 monochrome laser printer offering up to 40PPM printing, 1200 × 1200 dpi resolution, automatic duplex printing, USB 2.0 and Gigabit Ethernet connectivity. With expandable paper capacity up to 880 sheets, expandable memory and a high-volume duty cycle, it is suitable for demanding office and business printing. USED - Toner and Drum NOT Included.
At EcoLaptop, we’re all about providing high-quality, sustainable refurbished tech devices that are easy on both the planet and your budget. To help you make the best choice, we’ve developed a transparent and detailed grading system that describes the condition of each device. Whether you’re looking for something nearly perfect or a great deal on a functional device with a bit of wear, we’ve got you covered!
Brand new, untouched devices. They may have had their packaging opened for inspection purposes, but they’ve never been used and remain in perfect condition.
These devices are fully refurbished and in superb working order. They may show very light signs of previous use, but performance-wise, they’re as reliable as you need them to be.
These devices may show some cosmetic wear, but they’re still in great working condition. Ideal for anyone seeking a balance between good looks and affordability.
These devices have seen some wear, with more visible cosmetic imperfections like scratches or small dents. However, they’re fully functional and ready to get the job done.
Devices with significant cosmetic damage and potential minor functionality issues. These are best for buyers who don’t mind noticeable wear and are comfortable with the possibility of minor repairs down the road.
Every device at EcoLaptop goes through rigorous testing and refurbishment to meet our quality standards, ensuring you get a device that performs well regardless of the grade.
By choosing EcoLaptop, you’re saving money and helping reduce e-waste. You’re also getting a clear, honest description of your device’s condition, so there are no surprises—just great deals!
Join the eco-friendly tech revolution with EcoLaptop: Get quality tech, save money, and reduce your environmental footprint!
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