Epson Perfection V500 - Manual (Page 223)

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Striped Rings Appear in Your Scanned Image
A ring-shaped pattern of stripes (called a Newton ring) sometimes appears on
scanned images of transparent materials if the film is curled.
Place the film with the base side facing up and preview using thumbnail preview.
Then flip the previewed image by clicking the mirroring icon in the Preview
window. See Previewing and Adjusting the Scan Area for instructions.
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A Line Appears in the Previewed Image
The document table or transparency unit window may be dusty or scratched. Clean
the document table and transparency unit window as described in
Cleaning the
Scanner . If you still have the problem, contact Epson. See Epson Technical Support
for details.
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