works as intended
Thank you LDLC for the fast delivery.
HP advise using their own brand to prolong the life of the printer, so I'm sticking to that as I think it's still good value for money.
The CF403X promises 2300 pages against 1400 for the CF403A and I think the total price per page is indeed cheaper.
I'm not sure if it's a good idea to buy a new one, but I'm sure it's a good idea to buy a new one.