Ink2U for ink cartridges & toner

Free delivery on everything
FREE delivery on everything
Order now for delivery on: Thursday, 3rd December

Canon CLI-521BK Black Ink Cartridge

Canon CLI-521BK
From Only
+ Free Delivery

11.46 inc
10.36 inc
9.92 inc

Average Customer Rating: Average Customer Rating of 5 Stars  5/5  (from 5 reviews)
4 out of 5 people would recommend this product to a friend
In Stock & Ready to Ship

Order now for delivery Thursday, 3rd December

SAVE 5.42

A premium value alternative is available.

View the product for 4.13

Product Code

Cartridge Colour
Black   Black


Cartridge Type
Original Inkjet Cartridge



Duty Cycle
1,875 pages

Running Cost
0.5p per page

The Canon CLI-521BK Black Ink Cartridge features Canon's ChromaLife 100+ system, which provides longer-lasting and more true-to-life photo prints. The introduction of this technology naturally increases the longevity of printed output, particularly for album life, where over 300 years has been achieved, and gas-fastness figures have doubled from 10 to 20 years.

Canon CLI-521BK 100% Money Back Guarantee

Here at Ink2U We Do Our Best to Keep Our Customers Happy

Our mission is to provide quality, low priced products, delivered free of charge that are coupled with excellent customer service before, during and after your purchase.

If it turns out that you are not completely satisfied with this Canon CLI-521BK Black Ink Cartridge for example, it's extremely easy for you to get your money back as it's covered by our 6-month money back guarantee.

If you need to, just get in touch and we'll be more than happy to get you smiling again :)

These cartridges earn you £0.00 each off of your next order

What do I do?

When you receive your order, simply return your empties in the provided freepost envelope and we'll credit your account with cash to use against your next order. We'll even send you a courtesy email to let you know it's been done.

  • Saves you extra money off of your orders
  • Saves waste going to landfill

Customer Ratings and Reviews

Canon CLI-521BKCanon CLI-521BK Black Ink Cartridge

Average Customer Rating of 5 Stars 5/5  from 5 reviews

Customer Rating of 5 Stars Just as usual 22/09/2015 by Anne Shimwell

What else is there to say - excellent service as always

Customer Rating of 5 Stars canon ink 04/01/2014 by anthony creal

good product and very fast delivery

Customer Rating of 5 Stars canon ink 04/01/2014 by anthony creal

good product and very fast delivery

Customer Rating of 5 Stars Consistent excellent service 06/09/2013 by Sister Margaret King

We have been happy to recommend INK2U to anyone as your service is quick and efficient, and we have always been more than satisfied with the service you provide, thank you. (Sister Margaret King)

Customer Rating of 5 Stars Fastest, cheapest, bestest! 13/02/2013 by Wendy Foden

Brilliant as always! Cartridges arrived swiftly as promised, well packaged, and super value for money, can't find cheaper. Will continue to recommend. Thanks again, Ink2U.

Quality Assured
Become a fan of Ink2U on Facebook Follow Ink2U on Twitter Follow Ink2U on Google+

Tel: 0844 740 7402 or 01823 665141
Registered Company: 04553736
VAT Registration: 800 7534 58

©2000-2015 Ink2U Ltd, 4G Westpark, Chelston, Wellington, Somerset, TA21 9AD