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Image Quality

  • An area I highlighted with a fluorescent (or neon) marker does not appear in my scan. What should I do?

    Try using a non-fluorescent marker. This limitation occurs with a scanner that uses a contact image sensor (CIS). CIS technology cannot detect fluorescent marks accurately, especially yellow marks.

    If you need to scan a document with fluorescent marks, we recommend you use a scanner with charge-coupled device (CCD) technology, which can detect fluorescent marks. The following JOYUSING products support CCD technology:

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