I removed the new cartridge and fit the old cartridge in and the amber light extinguished and I can immediately print (though of poor quailty). Yes I have removed the new cartridges stickers and yes the cartridges are properly fitted.
What causes the amber light to come on and what do I need to help myself. It is Sunday and I have sent a complaint to the web supplier and I await his response.
The two new Tri-colour cartridges look exactly the same as the working old one. Bruce +++