| Model | B4540 MFP |
| Manufacturer | OKI |
| Web | www.oki.co.uk |
| Price – street inc (ex) VAT | £537 (£457) |
| Warranty Duration | 1 year |
| Warranty Type | back to base |
| Print head type | LED |
| Maximum page size | A4 |
| Sheet feed capacity (sheets) | 250 x 80g/m2 |
| Max paper weight (g/m2) | 163 |
| Print head resolution (dpi) | 600 |
| Carriage resolution (dpi) | 600 |
| Scan resolution (ppi) | 600 x 2,400 |
| Memory / Max memory | 64 / 64 |
| Rated black speed (ppm) | 20 |
| Rated pages per month | 12,500 |
| Toner cartridge type | Integral toner and drum |
| Connection type | USB 2, Ethernet |
| Print without PC? | No |
| Power supply | Internal |
| Power consumption (W) | 580 |
| Extra features | Scanner auto sheet-feed, SMS message send |
| Options | 500 sheet paper tray, duplexer |
| Dimensions (trays closed)
W x D x H (mm) | 520 x 445 x 455 |
| Weight (kg) | 15 |
| Printing software | PaperPort 8 SE, OKI Companion Director, OKI Companion Monitor, |