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FeeFoRATED 4.7 (25,154 Reviews)

Lexmark MX521de Toner Cartridges

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Filter Products (7)

Black Cartridges For Lexmark MX521de printers

Compatible Lexmark 56F2U00 Ultra High Capacity Black Toner Cartridge
Guaranteed for 3 Years
1 x
Black
25,000 Pages
£ Cost per page 0.74p
Printer Warranty Protected
Printer Warranty Protected
Guaranteed to Work
£184.76
£221.71 inc VAT
In Stock - Delivered Wednesday
Order Within
Delivery
Free Next-Day Delivery
Compatible Lexmark 56F2X00 Extra High Capacity Black Toner Cartridge
Guaranteed for 3 Years
1 x
Black
20,000 Pages
£ Cost per page 0.90p
Printer Warranty Protected
Printer Warranty Protected
Guaranteed to Work
£179.56
£215.47 inc VAT
In Stock - Delivered Wednesday
Order Within
Delivery
Free Next-Day Delivery
Lexmark 56F2U00 Ultra High Capacity Black Return Program Toner Cartridge
Lexmark 56F2U00 Ultra High Capacity Black Return Program Toner Cartridge
Product Code: 56F2U00
1 x
Black
25,000 Pages
£ Cost per page 1.44p
£360.95
£433.14 inc VAT
In Stock - Delivered Wednesday
Order Within
Delivery
Free Next-Day Delivery
Lexmark 56F2X00 Extra High Capacity Black Return Program Toner Cartridge
Lexmark 56F2X00 Extra High Capacity Black Return Program Toner Cartridge
Product Code: 56F2X00
1 x
Black
20,000 Pages
£ Cost per page 1.77p
£353.47
£424.16 inc VAT
In Stock - Delivered Wednesday
Order Within
Delivery
Free Next-Day Delivery

Printer Maintenance Products

What are printer maintenance products?
Compatible Lexmark 56F0Z00 Black Imaging Unit
Guaranteed for 3 Years
1 x
Maintenance
60,000 Cycles
Printer Warranty Protected
Printer Warranty Protected
Guaranteed to Work
£35.00
£42.00 inc VAT
In Stock - Delivered Wednesday
Order Within
Delivery
Free Next-Day Delivery
Lexmark 56F0ZA0 Black Imaging Drum Unit
Lexmark 56F0ZA0 Black Imaging Drum Unit
Product Code: 56F0ZA0
1 x
Maintenance
60,000 Cycles
£80.07
£96.08 inc VAT
In Stock - Delivered Wednesday
Order Within
Delivery
Free Next-Day Delivery
Lexmark 56F0Z00 Return Program Black Imaging Unit
Lexmark 56F0Z00 Return Program Black Imaging Unit
Product Code: 56F0Z00
1 x
Maintenance
60,000 Cycles
£44.86
£53.83 inc VAT
In Stock - Delivered Wednesday
Order Within
Delivery
Free Next-Day Delivery

Frequently Asked Questions

What is the returns policy and how do I return a cartridge?
We want you to have the best experience possible when shopping with TonerGiant. With over 20 years’ expertise, our friendly support team is here to help get you printing again quickly. You can arrange to return a product through our returns form, or by calling us on 0345 365 3605.
If your product becomes faulty
  • Original Cartridges: Return for a refund or replacement for up to 12 months.
  • Compatible cartridges: Return for a refund or replacement up to 3 years.
Please contact us a soon as possible to request a returns number and arrange a free collection.
If you change your mind - 30 Days to return:
  • You have 14 days from delivery to arrange a return and an additional 16 days to return the items to us once arranged (30 Days in total).
  • Ordered incorrectly? We’ll provide a returns number and address for you to send to.
  • Wrong item arrived – We’ll arrange a free collection of the incorrect product(s) and send a replacement.
After 14 days, you may still be able to return the product, but a 20% restocking fee will apply. After 30 days, returns are at our discretion.
Please note: Printer cartridges must be returned unopened, unused, with all seals intact and in a resalable condition, or returns may not be accepted.
Find more information and our full returns policy on our returns & refunds page.
How much does delivery cost and how long will it take?
We don't think you should pay more at the checkout, and we're proud to be one of the only printer cartridge suppliers to offer Free guaranteed next-day delivery to all mainland UK addresses.
Order before 5:30 pm on any working day and so long as the products are in-stock, your order will be delivered on the next-working-day.

Customer Questions (1)

Q
Hi, I need a toner cartridge for our LEXMARK MX521 printer. The toner cartridge number is: 56F2UOE - Do you stock this one? Annie.
02 July 2025
A

Hi there Annie, the 56F2U0E is the 25k normal cartridge, so the equivalent that we sell is the return programme version. Return programme cartridges are cheaper than the normal versions and the reason is simply that Lexmark is encouraging you to use their return recycle programme. You can find the cartridge here:

https://www.tonergiant.co.uk/product/Lexmark-56F2U00-Ultra-High-Capacity-Black-Return-Program-Toner-Cartridge-56F2U00-99483/

If you need any more help, let me know!

Need Assistance? We'll be happy to help! Call us on 0345 365 3605