As my geordie friend has said,
Kissmysquirrel is quite correct, in that it is a minimum of 5 hours on type, but if you are a slow learner it could take up to 20 hours. (However long it takes to grasp the scan and be safe eh!)
Then there is the multi guess Type paper and then a TRI examiner must assess your suitability for type by way of examination in a flight test.
Grainger , Good luck with your type rating
MD