| Configurations | B721dn – Duplex + Network |
| Summary | Enterprise class A4 mono printers for improved business efficiency |
| Print Speed (A4) | 47ppm |
| Time to First Page | Less than 5 seconds |
| Print Resolution | 1200 x 1200dpi, 600 x 600dpi |
| Emulation | PS3, PCL 5e, PCXL, XPS, SIDM |
| Paper Input standard | 530 sheet tray + 100 sheet MPT |
| Paper Input optional | 3 x 530 sheet trays, LCF: 2,000 sheet |
| Auto Duplex | Yes, Standard |
| Paper Weight | Up to 253gsm via MPT |
| Duty Cycle (per month), max./recommended | 200,000 / 20,000 pages |
| Interfaces | USB, Network, AirPrint |
| Dimensions (mm), weight | 410H x 435W x 498D, 27kg approx. |
| Bundled Software1 | Print Job Accounting2, Print Job Accounting Client2, PrintSuperVision.NET2, Template Manager2, Universal PCL Print Driver, Storage Backup Utility, Configuration Tool, OKI LPR Utility, PDF Direct Print |
| Warranty | 3 years* |
| Banner Printing | Prints up to 1.32m Banners |