Hello, my Minolta 5400 scanner has developed an apparent mechanical malfunction. It seems that at the beginning of the actual scanning process of each frame, the film carrier moves a bit backwards (I suppose to put the start of the frame to where the sensor is after focusig). Lately, the scanner makes a strange noise while attempting to move the carrier, but the carrier remains more or less in place; the scans are clearly shifted (about a fith to a third of the frame is cut out and replaced by just white space). Sounds like some gear is wearing out and slipping - the forward motion of the film carrier seems to be perfectly fine. Anyone else having the same problem or care to comment on what the problem might be? Thanks in advance!