You can get a printout for any days records that’s still on the driver card.
When your card is in the tachograph and the tachograph is on the standard display press the down arrow and scroll to the driver 1 printout menu, enter the date for the printout you want and press OK.
Alternatively offer your boss a copy of the printout (if he wants one), if you don’t do 2 printouts you should keep the printout with you for the next 28 days then hand it in to the transport office.