JOBO SNAPSCAN 5000 - V1.15 User Manual page 5

Note
 We strongly suggest using a clean, dry, non-alcohol
cotton swab to clean the glass surface periodically
to produce a clear image during operation.
 Clean dust from Film Scanner back light, to use the
clean brush to wipe the dust.
 Dust or dirt from the negative, slide films and cover
trays may affect the scanned image quality, please
make sure the materials are cleaned before inserting
into the scanner.
 Please find recommend, processional purger from photo store to clean the dust on
films if any to avoid damaging the only one copy of old films.
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