Our Epson 3170 scanner no longer works fully since we updated our iMac to 10.10.3 Yosemite. Looks like we need to get a new scanner? There are no solutions found on the web. We have Vuescan but that shows "no scanners were found connected to your computer". No driver update show on Apple Store. Any suggestions? We need to be able to scan at good resolution A4 documents but also 35mm slides and negatives and we would like the scanner to be able to do OCR. I am thinking of the Epson Perfection V600 Photo but has any Apple owner any recommendations?