Canon i-SENSYS MF421dw A4 Mono Multifunction Laser Printer


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Key Features
Back Key Features
  • Print/Scan/Copy
  • Up to 38ppm Mono Print
  • Up to 5.5 Seconds First page
  • USB, Network & Wireless
  • Automatic Double Sided Printing
  • 600 x 600 dpi Print
  • 250 Sheet Input Tray
  • 100 Sheet Multipurpose Tary
  • 2 x 800MHz Processor
  • 1GB RAM
  • Windows & Mac Compatible
  • UFRII, PCL 5e, PCL6
Compare the Range
Compare the Range
ModelMultifunction SummaryCompatibilityScan File Format Price ex Vat 
Canon i-SENSYS MF421dwPrint/Scan/CopyUFRII, PCL 5e, PCL6 TIFF, JPEG, PDF, Compact PDF, Searchable PDF, PNGView£235.41
Canon i-SENSYS MF428xPrint/Scan/CopyUFRII, PCL 5e, PCL6, Adobe® PostScriptTIFF, JPEG, PDF, Compact PDF, Searchable PDF, PNG, Encrypted PDF, PDF (Digital Signature)View£264.92
Canon i-SENSYS MF426dwPrint/Scan/Copy/FaxUFRII, PCL 5e, PCL6, Adobe® PostScriptTIFF, JPEG, PDF, Compact PDF, Searchable PDF, PNGView£294.17
Canon i-SENSYS MF429xPrint/Scan/Copy/FaxUFRII, PCL 5e, PCL6, Adobe® PostScriptTIFF, JPEG, PDF, Compact PDF, Searchable PDF, PNG, Encrypted PDF, PDF (Digital Signature)View£332.84
Special Offer
  • Up to £100 Cashback
  • Free 3 Year Warranty

Business Price £235.41 ex VAT @ 20%
£282.49 inc VAT
9 In Stock
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Canon i-SENSYS MF421dw
Business Price £235.41 ex VAT @ 20%
£282.49 inc VAT
  • Product Overview
  • Cartridges & Accessories
  • Questions & Answers
  • Reviews
Product Overview

Canon i-SENSYS MF421dw in More Detail

A reliable and versatile all-in-one laser printer featuring mobile connectivity ideal for use in a small office. This device can be used to print, copy and scan in high quality with 600 x 600 dpi resolution.

Easy to use

The Canon i-SENSYS MF421dw has a five-inch LCD colour touchscreen and also has mobile connectivity for iOS and Android, making it very easy and straightforward to use. You can link your tablet or smartphone over Wi-Fi for ease of use with the Canon PRINT app.

Fast and customisable

The Canon i-SENSYS MF421dw can print up to 38 pages per minute. You can also customise and automate everyday tasks for maximum efficiency. This includes things like regularly used forms, scanning documents to email and copying your documents with a single click.

Remote access

With the Canon i-SENSYS MF421dw and the Canon PRINT app, you can use the camera on your mobile or tablet to capture information from a whiteboard or piece of paper, convert it to PDF and send directly to your printer - saving you time and helping you be more productive.

Fewer paper jams

The double-sided scanner uses a single pass system which means you can scan and print quickly, with reduced risk of paper jams.

Secure printing

The Canon i-SENSYS MF421dw comes equipped with a PIN function so that you can send documents remotely, but authorise the printing directly on the device which ensures confidentiality even in a busy office environment.

Consistency and reliability

The Canon i-SENSYS MF421dw uses a new and improved Canon Genuine All-in-One ink cartridge which helps to make sure your printing is consistent and always of high quality. With the new all-in-one cartridge, you can print up to 1,000 more pages than with a standard cartridge, helping to reduce downtime and maintain productivity and efficiency.

What's in the Box?

What's in the Box?

  • Canon i-SENSYS MF421dw
  • Black Starter Toner Cartridge
  • Power Cable
  • Starter Guide
  • User Software CD-ROM
  • EWS Booklet
  • Warranty Card
  • Relevant Engineering Accreditation Council Manuals
Detailed Specification

Detailed Specification


Speed Monochrome Up to 38ppm Mono Print
First Page Up to 5.5 Seconds First page
Product Group Output A4
Double Sided Printing Automatic Double Sided Printing
Printer Resolution 600 x 600 dpi Print
Printer Enhanced Resolution Up to 1200 x 1200 dpi Print Enhanced
Print Features Secure Print
Print From USB Yes (JPEG, TIFF, PDF)
Print Margins 5mm Top, Bottom, Left and Right / Envelope: 10mm Top, Bottom, Left and Right
Speed Monochrome (Duplex) 30.3ppm Mono Print


Double Sided Scan Automatic
Duplex Scan Speed (colour) 26ipm
Duplex Scan Speed (mono) 70ipm
Scan Destinations Scan to Email, PC, USB, FTP, Cloud
Scan Facility Present Yes
Scan File Format TIFF, JPEG, PDF, Compact PDF, Searchable PDF, PNG
Scan Resolution 600 x 600 dpi
Scan Speed (colour) 13ipm
Scan Speed (mono) 38ipm
Scanner Enhanced Resolution 9600 x 9600 dpi


Copier Reduce/Enlarge 25 - 400% in 1% Increments Copy
Copy Resolution 600 x 600 dpi Copy
Copy Facility Present Yes
Copy Speed 38ppm
Copy Speed (Duplex) 30.3ppm
Double-Sided Copying Automatic
Multiple Copying Up to 999 Copies


Interface Type(s) USB, Network & Wireless
LCD Screen 12.7cm LCD Colour Touch Screen
Airprint Compatible Yes
Mobile & Cloud Printing Services Google Cloud Print, Apple AirPrint, Canon PRINT Business App, Mopria

System Specification

Processor 2 x 800MHz Processor
Memory (Maximum) 1GB RAM


Operating Systems Supported Windows & Mac Compatible

Media Handling

Paper Handling Input 1 250 Sheet Input Tray
Paper Handling Input 2 100 Sheet Multipurpose Tary
Automatic Document Feeder 50 Sheet DADF (Single Pass)
Duplex Media Sizes Supported A4, Legal, Letter, OFFICIO, B-OFFICIO, M-OFFICIO, GLGL, Foolscap Custom (210 x 279.4mm - 215.9 x 355.6mm)
Maximum Duplex Paper Weight 120gsm
Maximum Paper Weight 163gsm
Media Sizes Supported (ADF) A4, A5, A6, B5, Legal, Letter, Statement, Custom (105 x 128mm - 215.9 x 355.6mm)
Media Sizes Supported (Multipurpose Tray) A4, A5, A5 (Landscape), A6, B5, Legal, Letter, Executive, Statement, OFFICIO, B-OFFICIO, M-OFFICIO, GLTR, GLGL, Foolscap, 16K, Indexcard, Envelope (COM10, Monarch, C5, DL), Custom (76.2 x 127mm - 215.9 x 355.6mm)
Media Sizes Supported (Standard Tray) A4, A5, A5 (Landscape), A6, B5, Legal, Letter, Executive, Statement, OFFICIO, B-OFFICIO, M-OFFICIO, GLTR, GLGL, Foolscap, 16K, Custom (105 x 148mm - 215.9 x 355.6mm)
Media Types Supported Plain paper, Recycled paper, Heavy Paper, Thin paper, Label, Post card, Envelope
Minimum Duplex Paper Weight 60gsm
Minimum Paper Weight 52gsm
Paper Handling Output 150 Sheet Output Tray

Barcodes & Labels

Barcode 8714574657042

Duty Cycle

Monthly Duty Cycle 80,000 Pages/Month
Recommended Max Print Volume 750 - 4,000 Pages/Month


Mono or Colour Printer Mono
Multifunction Summary Print/Scan/Copy
Technology Multifunction Laser Printer
Dimensions 453mm(W) x 464mm(D) x 392mm(H) - 16.9kg
Product Type A4 Laser Printer


Printer Languages UFRII, PCL 5e, PCL6

In the Box

In The Box Canon i-SENSYS MF421dw, Black Starter Toner Cartridge, Power Cable, Starter Guide, User Software CD-ROM, EWS Booklet, Warranty Card, Relevant Engineering Accreditation Council Manuals
Questions & Answers

Customer Questions & Answers

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What is AirPrint?

Apple AirPrint allows full colour, top-quality printing from iOS devices such as iPhones and iPads directly from within many Apps available from the Apple App Store.

To take advantage of AirPrint, your compatible printer must be connected to the same wireless network as your iOS device or Mac computer.

AirPrint enables users to print wirelessly from within applications on Apple devices to AirPrint Compatible Printers connected to a wireless network. You can use your iPhone, iPod Touch or iPad to easily print via Airprint without the need to install drivers or configure the printer queue. Just tap 'print' and select your AirPrint compatible printer, and print!....It's that simple.

What You See is What You Print

If you can open it on your apple device, chances are you can print it with AirPrint and an AirPrint compatible printer. Airprint works with Safari, Mail, Photos, iWork, PDF's in iBooks and many third-party AirPrint compatible apps available from the app store.

Full list of AirPrint compatible printers

Third-Party Apps

There are also a wide variety of third-party apps available to enable wireless printing through Apple devices, even to machines that are not natively AirPrint compatible printers. By sharing a printer installed on an Apple Mac or Windows Pc over a wireless network any printer may be able to take advantage of the AirPrint features. (An additional third-party app may be required to be installed on the local machine)

*For full AirPrint support, a printer firmware upgrade may be required which is available directly from the relevant manufacturer website.

Please note. Whilst every effort has been made to ensure that the above information is correct at the time of publication, Printerland will not be held responsible for the content of any third-party software suggested on this site and usage of any such software is at the users own risk. Printerland is unable to provide support for Airprint compatible printer software and any such advice should be readily available from the relevant manufacturer or developer.


What is Google Cloud Print?

With Google Cloud Print, you can print any document from anywhere to your Google Cloud Print connected printer.

When you print using Google Cloud Print, your file is securely transferred over the internet to your printer. Whether you are in the same room or even in a different country on a different continent you can print whatever you want using any device such as a smartphone, tablet PC or desktop computer.

Share with friends or colleagues

Google Cloud Print enables you to share your printer with friends, family or work colleagues with ease. From the Google Cloud management page you can share your printer securely with trusted individuals.

Scalable Printing Solution for Business

Google Cloud Print is used internally by Google employees on hundreds of printers and is designed to scale to your business demands, growing with your business or as a replacement for your existing printing infrastructure.

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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