To ensure that they accept your printout, print a cover page with "LOGBOOK" in big letters on the front and your name and address on the reverse. Staple the whole together and the CAA can not say that you have not provided a logbook.
It isn't the use of computer printed records that the CAA have a problem with.....it is with the use of a computer as the sole means of recording the information (no paper back-up).
Regards,
DFC