I had a quick look at your log, and there is clearly a 0x16 byte header on each transfer. The last two bytes of the header are little-endian length of the remaining bytes. Bytes 0xa and 0xb of the header seem to count upwards.
unfortunately, even after removing the header, it still looks like noise. given that the specs list horizontal and vertical dimensions, it is more likely this is a 2-d camera than a 1-d scanner. i would ask the gphoto or webcam guys if this looks familiar to them. allan