The tacho printout will have the drivers name on it anyway.
C'mon stevierst, pay attention at the back
Analogue tachograph means you have to enter your details (or anyone else's for that matter, as that's what you had to do to 'cheat' the system)
Digital tachograph means it takes info from your digital driving card.
For those who are interested, generally after 2006 (and yes I know there's specific dates but I'm not going into that, keeping it simples) any commercial vehicle would need to have a digital tachograph fitted.