If you are owning branded printers like Canon, Brother, Epson, HP, Lexmark, Xerox, etc. then you must be very careful when buying Printer cartridges for your high priced and top quality printers. If you end up having duplicate cartridges all your hard earned investment on your printers will go in drain. Always look out for the genuine sellers. Check whether they have a genuine customer care service, even after sales, and find out whether they have a helpline number to contact them whenever the need arise, and also check whether they are delivering it across to your place and find whether the shipping is free or otherwise. And more importantly check whether they sell branded cartridges like Canon ink cartridges or any other major brands that you might own when it comes to printers.