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This fitted easily and seems to work without problems. IT was recognised by my OKI531DN printer as a proper cartridge. It does not seem to leak around the edges as some cartridges do. No recycycling bag with collection was offered, so it misses the 5th star. 1 August 2016 
I've been ordering toner from you guys for a long time, and I have never been let down by the service or quality of the toners. I have used them in a variety of different printers and have never had a single instance where your product did not out perform the OEM toner! And it always arrives in two three days! You have a customer for life. Keep up the great work! 2 April 2013 I found them to be very service oriented and concerned about my purchase and whether my products I ordered were going to work OK...Samsung printer toner, all went great and would use them again. 9 January 2013 It arrived super-quickly and seems fine so far. It was significantly cheaper than the official Samsung product so will remain to be seen whether it lasts as long, but very good service and happy so far. 10 January 2017 Read the reviews but was still the 'Doubting Thomas'. However, I need not have worried. The product was dispatched and arrived swiftly. It was well packaged. After reading the instructions, carefully, it fitted a treat and worked well - as good as if it were the original. Brilliant! Bonus is, it's a lot cheaper than the original manufacturer's. Will definitely be buying these replacements again. One word of warning (as stated on the slip enclosed with the cartridge) don't update your printer software as this may prevent the printer recognising the 'non-authentic' replacement! 11 December 2016 Prompt delivery. Working fine. Excellent value. Thank you. 1 February 2016 Very pleased, yet again. Good product, good prices, fast delivery. What more could I want? 7 october 2016 We have been buying toner/inks from this company for about 3 years. Never had a problem with the items purchased, they always arrive on time and in good order. Highly recommended. 5 may 2016