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Hi Les Ah ok,
yes they do take the No.10 and No.11 cartridges here:
We keep the chip data as up to date as possible and offer a 3 year guarantee so if you do have problems with them we can arrange a return.
Unfortunately HP are a bit of a nightmare with blocking the compatibles these days so it depends on the printer updates that they’ve recently installed. I don't know exactly how to switch printer updates off in your machine but if there's a printer screen / menu, there's normally a settings section where you can switch it off.
If you need any more help, let me know!