Well, my efforts to seal my Coolscan V from dust/fibers have evidently failed. There's not much you can do while you're actually using it. Anyway, I tried following some online advice for cleaning an LS-5000, but the instructions failed me once I got to the mirror and clip. I just can't tell from the pictures how the clip is removed and the mirror taken out. First of all, I think the problem is the mirror, but I am going to post a picture of the artifact which now appears in all scans--let me know if you agree that the problem is on the mirror. If anyone has better instructions for getting the mirror out, let me know. Anybody else have luck cleaning their Coolscan? The defect is in the far left of the frame, roughly centered vertically.