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FREE next-day delivery on everything
 

Delivery Schedule

Most orders will arrive in the timeframes shown below. However, due to the COVID-19 crisis, a minority will take a day or more than expected. If your order hasn't arrived by the estimated delivery date, please allow 5 days before contacting us.


Order placedExpect to receive
Monday, before 5:15pm Next day (Tuesday)
Tuesday, before 5:15pm Next day (Wednesday)
Wednesday, before 5:15pm Next day (Thursday)
Thursday, before 5:15pm Next day (Friday)
Friday, before 5:15pm Monday
Saturday or Sunday Tuesday

All orders are being dispatched from our warehouse on the day they are placed (Monday to Friday before 5:15pm).

The possible delays in delivery are due to unprecedented demand on couriers, and affect all couriers throughout the U.K. This means that all online stores will be affected equally, regardless of the speed in which orders are dispatched.

Bank holidays

We do not despatch or deliver orders on bank holidays

Highlands and Islands

Deliveries may take 2 to 3 days longer to arrive

International deliveries

We only deliver to addresses within the UK.

Lowest online price guaranteed
We beat or match all other retailers Lowest price guaranteed
Fast, FREE delivery

Lowest online price guaranteed.

If within 7 days of your purchase you find the same product (brand and model) being offered online at a lower price, we will refund 100% of the difference. For further info, click here.

<2>Lowest online price guaranteed

To claim against our low price guarantee simply contact us and include the following information:

  • Your full name, postal address, email address and order number
  • The product code of the item you found cheaper on a competitor's site
  • The exact page on the competitors website where you found the product cheaper
  • Please note: unfortunately we are unable to offer this guarantee on printers and hardware

Our low price guarantee applies only to products available from online UK retailers. It excludes products that are not new and immediately available, online promotions such as special, bonus or free offers that are not at everyday prices and products which are sold under different terms and conditions, such as special financing, contract pricing or volume discount pricing.

Basically, the identical items must be in stock and ready for immediate dispatch on another VAT registered UK mainland based website.

Free next-day delivery

Our free delivery option typically uses Royal Mail first class. In 98% of cases, orders placed on Monday to Friday before 5:15pm will arrive on the next working day. To see other delivery options and our delivery schedule click here.

Delivery Schedule

Orders placed before 5:15pm on Monday to Thursday - receive next day

Orders placed before 5:15pm on Friday - receive on Monday

Orders placed on Saturday or Sunday - receive on Tuesday

Delivery Options

Free next-day

98% of orders arrive the next working day. Typically uses Royal Mail 1st class, though some orders may be upgraded to courier.

Guaranteed next-day (£2.95)

Uses courier. In the extremely unlikely event that delivery isn't attempted on the next working day, you will be given:

  • A 10% refund of the total order value
  • A refund of £2.95 courier charge
  • A further voucher giving you a further 10% off your next order

Guaranteed pre-12 (£7.95)

Uses courier. In the extremely unlikely event that delivery isn't attempted before 12 noon on the next working day, you will be given:

  • A 10% refund of the total order value
  • A refund of £7.95 courier charge
  • A further voucher giving you a further 10% off your next order

12 month warranty on printer cartridges

If within a year of purchase you happen to experience any quality problem, we'll happily provide a replacement, or a full refund.

Free returns on printer cartridges

Whatever the reason for returning printer cartridges to Cartridge Save, you will never pay a penny for postage.

Lowest online price guaranteed

We pride ourselves in giving our customers the best possible value for money. To ensure you are not out of pocket, we will refund 100% of the difference, if within 7 days of your purchase you find the same product (brand and model) being offered online at a lower price.

To claim against our low price guarantee simply contact us and include the following information:

  • Your full name, postal address, email address and order number
  • The product code of the item you found cheaper on a competitor's site
  • The exact page on the competitors website where you found the product cheaper
  • Please note: unfortunately we are unable to offer this guarantee on printers and hardware

Our low price guarantee applies only to products available from online UK retailers. It excludes products that are not new and immediately available, online promotions such as special, bonus or free offers that are not at everyday prices and products which are sold under different terms and conditions, such as special financing, contract pricing or volume discount pricing.

Basically, the identical items must be in stock and ready for immediate dispatch on another VAT registered UK mainland based website.

Canon i-SENSYS MF231 Toner Cartridges

Canon i-SENSYS MF231 Toner Cartridges

The following 2 products are guaranteed to work in your Canon i-SENSYS MF231 printer:

2 products guaranteed to work in your printer:

2 products guaranteed to work in your Canon i-SENSYS MF231 printer:

Got a question about products for this printer?
Ask a question

 
Black toner cartridges for Canon i-SENSYS MF231 printer

  1. Genuine Canon
    Genuine Black Canon CRG-737 Toner Cartridge - (9435B002)
    Genuine Black Canon CRG-737 Toner Cartridge - (9435B002)
    100% of 100
    10 reviews
    Customer Reviews
    1. 5 Star 10
    2. 4 Star 0
    3. 3 Star 0
    4. 2 Star 0
    5. 1 Star 0
    See all 10 reviews

    Average Customer Review:
    100%
    10 reviews

    1. 100%

      By Jan Nechanicky on

      Very fast and efficient service, actually I could not believe how fast it was delivered. Well done
    2. 100%

      By John Airey on

      Easy to fit, simple enough to register to recycle old ones. Found them to be reliable and I've bought a lot of them.
    3. 100%

      By Scott Vevers on

      Excellent quality
    4. 100%

      By Samuel Blitz on

      The service was good but I stupidly forgot to do my research on the price and paid at least £10 more than ordering the cartridge from another supplier.
    5. 100%

      By Jan Nechanicky on

      Very reliable and professional service, the Canon cartridge works beautifully
    Page
    Show per page

    Best value Genuine

    1 pack | 2.8p per page Pack of 1 cartridges
    Page yield:
    1. 2,400 pages

    Pack Contains:

    Black - 2,400 pages

    For most cartridges this is based on 5% coverage on A4 paper. These numbers are based on manufacturer quoted values and are for comparison purposes only.

    • Black toner cartridge
    • Lowest online price guarantee
    • Lowest online price guarantee

      12 month guarantee and FREE returns

      If within a year of purchase you happen to experience any quality problem, we'll happily provide a replacement, or a full refund.

      Whatever the reason for returning items to cartridgesave.co.uk, you will never pay a penny for postage.

    Best value Genuine

    2.8p per page

    For most cartridges this is based on 5% coverage on A4 paper. These numbers are based on manufacturer quoted values and are for comparison purposes only.

    1. 2,400 pages
    Genuine Black Canon CRG-737 Toner Cartridge - (9435B002)

    Best value Genuine

    1 pack | 2.8p per page Pack of 1 cartridges
    Page yield:
    1. 2,400 pages

    Pack Contains:

    Black - 2,400 pages

    For most cartridges this is based on 5% coverage on A4 paper. These numbers are based on manufacturer quoted values and are for comparison purposes only.

    £66.60

    FREE next-day delivery

      Best Value Genuine
    Multi-buy discount
    • Buy more, save money
    • 2 £64.10
    • 3+ £63.23

    Best value Genuine

    1 pack | 2.8p per page Pack of 1 cartridges
    Page yield:
    1. 2,400 pages

    Pack Contains:

    Black - 2,400 pages

    For most cartridges this is based on 5% coverage on A4 paper. These numbers are based on manufacturer quoted values and are for comparison purposes only.

      • Black toner cartridge
      • Lowest online price guarantee
      • Lowest online price guarantee

        12 month guarantee and FREE returns

        If within a year of purchase you happen to experience any quality problem, we'll happily provide a replacement, or a full refund.

        Whatever the reason for returning items to cartridgesave.co.uk, you will never pay a penny for postage.

    £66.60

    FREE next-day delivery

    Multi-buy discount
    • Buy more, save money
    • 2 £64.10
    • 3+ £63.23
  2. Cartridge Save Premium
    Compatible Black Canon CRG-737 Toner Cartridge - (9435B002)
    Compatible Black Canon CRG-737 Toner Cartridge - (9435B002)
    Save £32.64 compared to the genuine Canon cartridge!

    Best value Premium

    1 pack | 1.4p per page Pack of 1 cartridges
    Page yield:
    1. 2,400 pages

    Pack Contains:

    Black - 2,400 pages

    For most cartridges this is based on 5% coverage on A4 paper. These numbers are based on manufacturer quoted values and are for comparison purposes only.

    • Black toner cartridge
    • Premium brand recycled toner cartridge

      Made using recycled Canon cartridges, this cartridge is a direct replacement for the Canon version. Manufactured to strict quality standards, our premium cartridges produce high quality prints and are very reliable — in fact, we use them in our offices and recommend them to friends, family and other businesses.

    • Premium brand recycled toner cartridge

      Premium brand recycled toner cartridge

      Made using recycled Canon cartridges, this cartridge is a direct replacement for the Canon version. Manufactured to strict quality standards, our premium cartridges produce high quality prints and are very reliable — in fact, we use them in our offices and recommend them to friends, family and other businesses.

    • 3-year warranty
      3-year warranty on our own-brand cartridges
      We are proud of our own-brand cartridges, so we’ve made trying them a no-brainer. If within three years of purchase you have any problem whatsoever, we’ll happily offer either a replacement or a refund.
      Returning items is easy—it takes just a few minutes. But our return rate is very low, so you’ll be unlikely to need it.
      We are confident that no other own-brand cartridges are better than ours. They produce vibrant prints with accurate colour densities and dark blacks—and their page yields are as good as the genuines, if not better. Give them a try, and see why our customers love them.
      Our own-brand cartridges are incredibly reliable for three reasons:
      1. We are the UK’s biggest seller of own-brand cartridges, and we have invested a lot in optimising them.
      2. We are dedicated to quality. Every own-brand cartridge is performance-tested before it leaves the factory.
      3. We constantly monitor customer feedback, and quickly resolve any issues.
    • Printer protection guarantee
      Our cartridges won't damage your printer—guaranteed
      Some people worry that own-brand cartridges might damage their printers. We know from experience that ours don’t.
      To reassure you, we guarantee that we’ll repair or replace your printer—for free—in the unlikely event that it gets damaged by an own-brand cartridge. This is regardless of how old your printer is. We can afford to offer this because problems are almost unheard of.
      Some people whose printers are less than a year old worry that an own-brand cartridge might invalidate the manufacturer’s warranty. This isn’t true. By law, the manufacturers aren’t allowed to invalidate your warranty if you use own-brand cartridges. If something does go wrong, and our own-brand cartridges are to blame, we’ll take over the manufacturer’s warranty, offer you phone support and repair or replace your printer if needed.

      In summary, there’s zero risk in using our own-brand cartridges.

    Best value Premium

    1.4p per page

    For most cartridges this is based on 5% coverage on A4 paper. These numbers are based on manufacturer quoted values and are for comparison purposes only.

    1. 2,400 pages
    Compatible Black Canon CRG-737 Toner Cartridge - (9435B002)

    Best value Premium

    1 pack | 1.4p per page Pack of 1 cartridges
    Page yield:
    1. 2,400 pages

    Pack Contains:

    Black - 2,400 pages

    For most cartridges this is based on 5% coverage on A4 paper. These numbers are based on manufacturer quoted values and are for comparison purposes only.

    £33.96

    FREE next-day delivery

      Best Value Premium
    Multi-buy discount
    • Buy more, save money
    • 2 £30.65
    • 3+ £29.20

    Best value Premium

    1 pack | 1.4p per page Pack of 1 cartridges
    Page yield:
    1. 2,400 pages

    Pack Contains:

    Black - 2,400 pages

    For most cartridges this is based on 5% coverage on A4 paper. These numbers are based on manufacturer quoted values and are for comparison purposes only.

      • Black toner cartridge
      • Premium brand recycled toner cartridge

        Made using recycled Canon cartridges, this cartridge is a direct replacement for the Canon version. Manufactured to strict quality standards, our premium cartridges produce high quality prints and are very reliable — in fact, we use them in our offices and recommend them to friends, family and other businesses.

      • Premium brand recycled toner cartridge

        Premium brand recycled toner cartridge

        Made using recycled Canon cartridges, this cartridge is a direct replacement for the Canon version. Manufactured to strict quality standards, our premium cartridges produce high quality prints and are very reliable — in fact, we use them in our offices and recommend them to friends, family and other businesses.

      • 3-year warranty
        3-year warranty on our own-brand cartridges
        We are proud of our own-brand cartridges, so we’ve made trying them a no-brainer. If within three years of purchase you have any problem whatsoever, we’ll happily offer either a replacement or a refund.
        Returning items is easy—it takes just a few minutes. But our return rate is very low, so you’ll be unlikely to need it.
        We are confident that no other own-brand cartridges are better than ours. They produce vibrant prints with accurate colour densities and dark blacks—and their page yields are as good as the genuines, if not better. Give them a try, and see why our customers love them.
        Our own-brand cartridges are incredibly reliable for three reasons:
        1. We are the UK’s biggest seller of own-brand cartridges, and we have invested a lot in optimising them.
        2. We are dedicated to quality. Every own-brand cartridge is performance-tested before it leaves the factory.
        3. We constantly monitor customer feedback, and quickly resolve any issues.
      • Printer protection guarantee
        Our cartridges won't damage your printer—guaranteed
        Some people worry that own-brand cartridges might damage their printers. We know from experience that ours don’t.
        To reassure you, we guarantee that we’ll repair or replace your printer—for free—in the unlikely event that it gets damaged by an own-brand cartridge. This is regardless of how old your printer is. We can afford to offer this because problems are almost unheard of.
        Some people whose printers are less than a year old worry that an own-brand cartridge might invalidate the manufacturer’s warranty. This isn’t true. By law, the manufacturers aren’t allowed to invalidate your warranty if you use own-brand cartridges. If something does go wrong, and our own-brand cartridges are to blame, we’ll take over the manufacturer’s warranty, offer you phone support and repair or replace your printer if needed.

        In summary, there’s zero risk in using our own-brand cartridges.
    £33.96

    FREE next-day delivery

    Multi-buy discount
    • Buy more, save money
    • 2 £30.65
    • 3+ £29.20

Customer Questions & Answers

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Most popular Canon printers

Canon i-SENSYS MF231 Printer Review

Expert review of the Canon i-SENSYS MF231 printer

Our Verdict:

The Canon i-SENSYS MF-231 is compact, reliable, and fast; perfect for home offices of every size. This particular model, which is a mono laser printer, boasts superior printing, efficient copying, and professional scanning quality, as well as USB connectivity. A great all-rounder, this machine has an easily interpreted interface that will please even technophobic users.

Design

Measuring approximately 390 x 371 x 312mm, and weighing a little over 10.1kg, the Canon i-SENSYS MF-231 boasts an LCD display, monochrome printing, media handling that includes plain and coloured paper, labels, index cards, and envelopes, and a duty cycle of 15,000 pages per month, as well as a memory of 128mb. The printer is designed to handle a variety of tasks, and has a print volume of between 500 and 2,000 pages. It is compatible with Linux, MAC OS X Version 10.6 and up, and up to Windows version 10.

Advantages

With its ‘intuitive’ user interface, toner saver mode, and simple design, the Canon i-SENSYS MF-231 is a great home printer capable of tackling a variety of projects. This 3-in-1 machine prints with a maximum resolution of 600 x 600 dpi and a quality of 1200 x 1200 dpi, handling an impressive 23 pages per minute. Its copying capabilities include a task time of 9 seconds or less for the first page and a 600 x 600 dpi, as well as the ability to produce 999 copies at any one time. In addition to printing and copying the machine’s scan function can create documents at a dpi of 9600 x 9600 once enhanced, and can read original text and images in just 3-4 seconds depending on whether the project is monochrome or colour. A variety of formats including PDF, JPEG, TIFF and searchable PDF can be created, and users have the ability to create scans in the cloud – a handy feature to have for those concerned with document storage and security.

Disadvantages

The Canon i-SENSYS MF-231 works in monochrome only, while its inability to connect to wireless Internet, or be used in conjunction with email, may deter users from choosing this model.