OKI B840dtn A3 Mono LED Laser Printer


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Print Job Accounting OKI Mobile Printing
Key Features
Back Key Features
  • 14 Day Trial - Call 0800 840 1992 to arrange
  • Up to 40ppm Mono Print
  • 5 Seconds First page
  • USB, Network & Parallel
  • Automatic Double Sided Printing
  • 600 x 600 dpi Print
  • 2 x 530 Sheet Input Tray
  • 100 Sheet Multi-Purpose Tray
  • 128MB (640MB) RAM
  • Windows & Mac Compatible
  • PCL5e, PostScript 3 (emulation), SIDM (IBM-PPR, EPSON-FX)
  • 1200 x 1200 dpi Print Enhanced
Compare the Range
Compare the Range
ModelDouble Sided PrintingMemoryAdditional Paper Tray Price ex Vat 
OKI B840dnAutomatic128MB (640MB)-View£913.12
OKI B840dtnAutomatic128MB (640MB)530 Sheet paper trayView£1,123.58

Select a bundle today and save £££'s

OKI B840dtn Wireless Bundle + OKI B840dtn Wireless Bundle
Bundle Price £1,138.25 ex VAT You save £10.81
Business Price £1,123.58 ex VAT £1348.30 inc VAT @ 20%
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OKI B840dtn
Business Price £1,123.58 ex VAT £1348.30 inc VAT @ 20%
  • Product Overview
  • Cartridges & Accessories
  • Questions & Answers
  • Reviews
Product Overview

OKI B840dtn in More Detail

Transform your black and white documents with the B840, the A3 printerwith the speed, versatility and footprint of an A4 device. With sharpmono output, provided by OKI’s innovative digital LED technology, theB840 brings A4 and A3 mono printing closer to your small to mediumworkgroup.
Gone are the days of having to decipher your spreadsheets and diagramswith a magnifying glass. The B840 provides the convenience of fastdesktop A4 printing speeds of up to 40ppm with the capability to printyour documents at a size that gives them and you a new perspective. TheB840 is competitively priced and brings affordable, A4 and A3 monoprinting, to every business, large or small.
The B840 is designed to offer low running costs with a low total cost ofownership that puts A3 printing in the reach of businesses andworkgroups in every sector. What’s more it comes with a three-yearwarranty at no extra cost, so you can absolutely rely on it. Combining the speed of an A4 printer with the flexibility of A3 output,the B840 delivers superior mono print quality in a compact machine thatwill sit on any desktop, bringing versatile printing right to the heartof a workgroup. The B840 comes network ready with PCL/PostScriptbuilt-in for maximum platform flexibility and application support.

Able to handle a wide range of media and paper weights of up to 200gsm,the B840 is ideal for reducing costs through printing items such asbusiness cards, labels and other business documents in-house. Inaddition, the B840dn and B840dtn models offer duplex printing asstandard for reduced running costs and to save paper.

The B840 has been designed to provide a cost effective printing resourcethat can sit on the desktop, closer to the workgroup. With highcapacity toner cartridges and energy saving features as standard, yourrunning costs are kept to a minimum.

Putting you in control, the software utilities and features provide evenmore value for your money. Secure Print3 removes the risk of sensitiveinformation falling into the wrong hands. PrintSuperVision providesremote monitoring and management of printers across your network andPrint Control allows you to control your print costs and usage.

The B840 is built on tried and tested digital LED technology, developedby OKI for over 20 years. This why we offer a three-year warranty. Therobust design and innovative technology not only deliver outstandingreliability but also the 100k duty cycle offer you consistently highquality prints over and over again, further reducing
user intervention.

What's in the Box?

What's in the Box?

OKI B840 printer

AC Cable (UK)

CD/DVD (including Software/ Utilities/ Drivers and User Manuals)

Setup Guide

Starter Toner= 6000 pages

Detailed Specification

Detailed Specification


Speed Monochrome Up to 40ppm Mono Print
First Page 5 Seconds First page
Product Group Output A3
Double Sided Printing Automatic Double Sided Printing
Printer Resolution 600 x 600 dpi Print
Printer Enhanced Resolution 1200 x 1200 dpi Print Enhanced


Interface Type(s) USB, Network & Parallel
Network Interface 10/100 Base-TX Ethernet Network
USB Ports 1 x USB 2.0

System Specification

Memory (Maximum) 128MB (640MB) RAM


Operating Systems Supported Windows & Mac Compatible

Media Handling

Paper Handling Input 1 2 x 530 Sheet Input Tray
Paper Handling Input 2 100 Sheet Multi-Purpose Tray
Additional Paper Tray 530 Sheet paper tray
Maximum Paper Size A3
Maximum Paper Weight 200gsm
Paper Handling Standard Output 250 sheets face down, 100 sheets face up, 80gsm
Paper Size A3, A4, A5, B4, B5, A6; 10 Envelopes (Com-9, Com-10, DL, Monarch, C4, C5); Labels (A4), Custom size: Width 76-297mm Length 148-431.8mm;

Barcodes & Labels

Barcode 5031713051992

Duty Cycle

Monthly Duty Cycle 100,000
Recommended Max Print Volume 20000 Pages/Month


Mono or Colour Printer Mono
Technology LED Laser Printer
Case Colour Classic Grey
Dimensions 485mm (W) x 575mm (D) x 520mm (H) - Weight 35kg
Power Saving Modes Printing, Sleep, Energy Star compliant
Product Summary OKI B840dtn A3 Mono LED Laser Printer
Product Type A3 Laser Printer
Voltage/ Power/ Frequency 220 to 240VAC / 50 to 60Hz
Carton Dimensions 67cm (W) x 73cm (D) x 89.8cm (H) - Weight 46kg


Printer Languages PCL5e, PostScript 3 (emulation), SIDM (IBM-PPR, EPSON-FX)
Font Capabilities PCL: 87 scalable PCL and 3 bitmap font; PostScript 3: 136 scalable

In the Box

In The Box OKI B840 printer, AC Cable (UK), CD/DVD (including Software/ Utilities/ Drivers and User Manuals), Setup Guide, Starter Toner= 6000 pages

Cartridges Included

Black 6000 Pages


Warranty 3 year On-Site Warranty (when product is registered within 30 days of purchase).

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Questions & Answers

Customer Questions & Answers

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OKI Print Job Accounting

OKI® Print Job Accounting software enables you to securely monitor your print fleet so you can charge back departments, bill back clients, and control the cost of colour prints.

See Exactly Who is Printing What

This optional application for OKI colour, mono and multifunction printers helps to give you a clear overview of of print activity by tracking the output of each individual user or department.

Assign cost values to documents including full colour and duplex (double sided) jobs to allow you to use information gathered to charge back departments or clients.

Easily capture full details surrounding:

  • Colour Vs Black & White pages
  • Number of printed pages
  • Page size
  • Media types
  • Paper trays used
  • Document name
  • Total time spent by job/person/department

Perfect for Multi-Device Owners

Print Job Accounting is designed for use by small or large business alike with multiple print sources with support for up to 50 devices for the standard version or even 1,000 printers when you upgrade to the enterprise version.

Total Access Control

Keep control over your workgroup's print output by defining who can print and what gets printed. Restrict users to black & white printing or allow access to full colour HD prints.

Assign access levels by username, application, file name, PC/server name or website URL. All policies are password protected and added security is provided by restricting authentication through the system manager.

Speak to an OKI specialist at Printerland on 0800 840 1992 for more information

OKI & Mobile Printing

With the modern mobile workforce increasing at a rapid rate, and the growing popularity of tablets, smartphones and laptops, printing documents where and when you need them adds a whole new meaning to print on demand providing you have access to a compatible device.

Thanks to the many mobile applications available, you no longer have to be ‘back in the office’ to print and share documents essential to your business, customers or partners; promotional customer information, contracts - you can keep your business going whilst you are on the move.

Printing from Apple iPad or iPhone?
How to print to an OKI Printer from an Apple iPad

How does mobile printing work?

Cloud or mobile printing works by connecting to a wireless, networked or web enabled printer through a smartphone device or tablet, meaning you can print remotely from anywhere in the world, without having to connect directly to a printer nearby.

OKI products & Mobile Printing

OKI Colour, mono and multifunction printers are compatible with a number of applications available, so you can download an application of your choice that enables you to print to almost any device simply through a single mobile printing application.

Microtech Corp’s ePrint and Cortado Workplace, for example, are compatible with most printer manufacturer brands including OKI’s portfolio of mono and colour LED printers and MFPs.

Microtech Corp's website  - compatible with iOS and Android devices*

Cortado's website - compatible with iOS, Blackberry, Android and Symbian devices*

*please note: a PC or Apple Mac on the same wireless network may be required for full compatibility.

All print speeds, running cost calculations and consumable life cycles are MANUFACTURER ESTIMATES based on 5% per page coverage. Images are used for illustration purposes only

Running Costs

-All consumable life cycles are manufacturer estimates based on 5% coverage per A4 page

*Estimation based on toner/ink cartridges only and excludes long life components such as image drums and fusers.

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