Long term printer cartridge storage?

It's not the compatible cartridge companies that are a problem, or at least the ones I have used in the past, it's the printer manufacturers who don't want you to use anything but their own ink cartridges as that's how they make their profits. When you buy a new inkjet printer, it will usually come with 'free' ink cartridges to get you started. What they don't tell you is that they are only partially filled and won't last very long. Some people have shown that it can be cheaper to buy a new printer, as they are often sold very cheaply, than to keep buying own brand cartridges.

Oh, they won't mention their chip readers, as it might put some customers off. Nevertheless, I believe that all, or at least most, printer manufacturers use these now.
Try the compatible cartridges when you get them, or when the installed ones run out. You may be lucky and find that they are accepted. I would always use good compatible cartridges if I couldn't get genuine Epson ones cheaply on Amazon. I just bought a colour cartridge for my printer (Photo EX) for about £8. They're normally more like £25!

That's good to know, as I said the new Canon was a gift, all now set up (wireless) and not yet needing new cartridges but I will report back when my new non branded cart's are fitted, with their glowing reports the way I see it if these new cartridges aren't acceptable to the Canon then none will be, if you get my drift,

Thanks again, Tony.