In the process of scanning a large batch of colour and B&W slides. The scanner is a Minolta Dimage Scan Dual IV and the TWAIN provider is Adobe Phoroshop Elements. The first 20 or so were fine, but, for no apparent reason subsequent scans have generated the white line as seen in the pic below. I have tried gentle air cleaning but no improvement. Any helpful tips. please ?
TIA
The pic is Kanchanaburi WGC memorial (Kwai river bridge)