B401dn black

B401dn black – Obsolete


All OKI products are expertly designed to work with the minimum need for technical support thanks to the technical advancements made.

However, if for any reason you are experiencing problems or are looking to upgrade by adding any additional accessories, the following pages will assist you. This support section also offers you help and advise so that you can achieve maximum impact with your OKI product.

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Affordable mono printing for micro and small businesses

The B401d/dn A4 mono desktop printers offer outstanding quality and duplex printing with fast, reliable performance, all in a low cost, compact and highly competitive priced device. The B401dn is networked so is suitable for micro or small businesses that require printing of day-to-day business documents for their workgroups.

Efficient working that improves productivity
The use of High Definition digital LED technology achieves a superior level of print quality. The 330MHz processor and 64MB memory combined help to deliver a fast first page out time and fast throughput. Plus, a generous standard 250-sheet paper tray and a convenient multi-purpose tray (MPT) with flexible media handling of up to 220gsm lets you print longer runs.

Energy saving features that reduces your impact upon the environment
These outstanding devices have many features that reduce your impact upon the environment, whilst also reducing your on-going costs. A pre-set option automatically powers off, reducing energy consumption to 0.5W when not in use and a Toner Save function reduces toner usage when printing draft or internal documents.

Reliability you can depend upon
OKI printers are inherently more reliable due to LED technology requiring fewer moving parts. This means that we can offer a 3-year warranty upon registration within 30 days of purchase, giving you complete peace of mind.

Full specifications


  • Print Speed – A4: 29ppm mono
  • Time to first print (TTFP) – Less than 5.5 seconds
  • Warm up time – Up to 25 seconds from power save
  • Processor speed – 330MHz PowerPC405

Interface and Software

  • Connectivity – B401d: IEEE1284 Bi-directional parallel, Hi-Speed USB 2.0; B401dn: IEEE1284 Bi-directional parallel, Hi-Speed USB 2.0, 10/100BaseTX Ethernet
  • Printer language – PCL5e, PCL6, Epson FX, IBM ProPrinter
  • Network & protocols – B401dn: 10/100BaseTX Ethernet card with internal web server for printer and network card set-up and management. Includes SMTP mail client for alerts. All major network protocols supported – TCP/IP, Netware, Ethertalk and NetBEUI. TCP/IP:-ARP, IPv4/v6, TCPv4, ICMPv4/v6, TCP, UDPv4/v6, LPR, FTP, TELNET, HTTP(IPP), BOOTP, DHCP, AutoIP, SNMP, DNS, DDNS, uPnP, Bonjour, WINS, SMTP, SNTP, Windows Rally(WSD-Print, LLTD), SLP, NEtBIOS over TCP, JetDirect protocols. Netware 3.x, 4.x, 5.x, and 6 with full NDS and NDPS support:- QServer over IP and IPX, R-Printer, N-Printer, NCP, SPX, IPX, SAP, RIP, Ethertalk:- ELAP, AARP, DDP, AEP, NBP, ZIP, RTMP, ATP, PAP, NetBEUI: SMB, NetBIOS
  • OS Compatibility – Windows XP (32-bit & 64-bit) / Server 2003 (32-bit & 64-bit) / Vista (32-bit & 64-bit) / Server 2008 (32-bit & 64-bit) / Server 2008 R2 (64-bit) / 7 (32-bit & 64-bit); Mac OS X Intel 10.4-10.7
  • Utilities – B401d: Template Manager, Print Job Accounting Server, Print Job Accounting Client, Printer Menu Setup Tool, Op-Panel Download Utility; B401dn: Template Manager, Print Job Accounting Server, Print Job Accounting Client, PrintSuperVision.net, OKI LPR, Network Extension, Admin Manager, Printer Menu Setup Tool, Op-Panel Download Utility

Paper Handling

  • Paper capacity – Tray 1: 250 sheets of 80gsm; Multi-purpose tray: 1 sheet (Up to 163gsm)
  • Maximum paper capacity – 251 sheets of 80gsm
  • Paper sizes – Tray 1: A4, A5, B5(JIS), Letter, Legal 13, Legal 14, Executive, Statement; Multi-purpose tray: A4, A5, B5(JIS), A6, Letter, Legal 13, Legal 14, Executive, Statement, Envelopes: Monarch, Com-9, Com-10, DL, C5, C6; Duplex: A4, Letter, up to Legal 14
  • Paper weight – Tray 1/2: 60 to 120gsm; Multi-purpose tray: 60 to 163gsm; Duplex: 60 to 120gsm
  • Duplex – Standard
  • Paper output – 150 sheets face down (80gsm)


  • Printer fonts – 87 scalable PCL fonts, 2 bitmap fonts, OCR-A/B
  • Dot matrix fonts – Epson FX and IBM PPR at various pitches
  • Barcodes – 12 types of one dimension with 28 variations: UPC-A, UPC-E, EAN/JAN-8, EAN/JAN-13, Interleaved2of5, Code39, Code 128, EAN/UCC-128, CODABAR, ZIP+4POSTNET, Customer barcode, USPS Zip Barcode; 1 type of two dimension: PDF417

Print quality

  • Resolution – 2400 x 600dpi, 1200 x 600dpi, 600 x 600dpi

General Features

  • Memory (RAM) – Standard: 64MB; Maximum: 64MB
  • Operating temperature/ humidity – Operating temperature/ humidity: 10°C to 32°C/ 20% to 80% RH non-condensing
  • Storage temperature/ humidity – Storage temperature/humidity: -10°C to 43°C/ 10% to 90% RH non-condensing
  • Power supply – 220-240 VAC +/- 10%, 50 or 60Hz +/-2%
  • Power consumption – Typical: 510W; Max: 900W; Idle: 70W; Power Save: 7W; Auto-Off: <0.5W
  • Noise level – Operating: 53dB(A) or less; Standby: 30dB(A) or less; Power save: Background level
  • Dimensions (HxWxD) – 244.5 x 387x 364mm
  • Weight – 11kg
  • Duty cycle (Maximum) – 30,000 pages/month
  • Duty cycle (Recommended) – 750 – 2,000 pages/month
  • Warranty – 3 years extended warranty upon registration within 30 days of purchase

Key Features

  • Description – A4 desktop mono printer
  • Number of users – 1 to 5

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