help decyphering usb logs

Hi'

I have two small logs, each of which I've runned throught
the
spike4.pl script, from the Canon CanoScan4200F.

here is a link to the logs: 
http://www.keenan.dk/rkimgz/canoscan4200Flogs.tar.bz2

bBW4b:
this is a scanner startup a small Black & White scan and
at the end
a test of the 4 buttons on the scanner

cgb1x1:
is a scanner startup then 1x1cm 100dpi scan from (0,0) in
first colors
then in B&W and last in gray.

any help in understanding the logs would aid me greatly

best regards
Rene Kjellerup
-- 
-- as life grows older, I gain experience.

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