Does not recognise colour cartridge even if a

Thanks for that komguy....but I am pretty handy with things like that and I had already sussed out this little pressure switch and it appears to be working as far as I can see manually, and when the cartridge is "snapped" in place.. I fiddled obout with it with a precision screwdriver but I only got it to print the first time it gave the error message after numerous times inserting said cartridge. They want about £120 to fix it which is a joke. I believe it may be an electronic sensor not the actual switch which is at fault. I have also done the "usual" like reloading the software. Thanks anyway any other ideas are more than welcome before I buy a second hand model..

Thanks for that komguy....but I am pretty handy with things like that and I had already sussed out this little pressure switch and it appears to be working as far as I can see manually, and when the cartridge is "snapped" in place.. I fiddled obout with it with a precision screwdriver but I only got it to print the first time it gave the error message after numerous times inserting said cartridge. They want about £120 to fix it which is a joke. I believe it may be an electronic sensor not the actual switch which is at fault. I have also done the "usual" like reloading the software. Thanks anyway any other ideas are more than welcome before I buy a second hand model..