Fujitsu N7100 Operator's Manual page 284

The color of an entire marked section should be even in thickness.
Good Example
 Up to 10 sections can be marked in a page.
ATTENTION
 In the following documents, highlighted character strings cannot be set as a keyword:
 Catalogs, pamphlets, and other color documents
 Documents including sections marked in two or more colors
 Documents containing colors other than for marking (pens other than highlight
pens are used or the document is stained)
 Documents containing a large number of marked sections in a page
 When any of the following conditions apply, the highlighted character strings may not be
able to be set as a keyword:
 The size of a marked section is out of the supported range
 Marking lines are not drawn in an ordinary way (such as when a line is slanted)
 Multiple marked sections are located close to each other
 The color of the highlight pen is too pale or the color has faded
 When applying markings on two or more character strings, the marked sections must
be separated from each other by at least 5 mm (0.2 in.). If marked sections are too
close to each other, multiple sections may be recognized as a single section.
 In the following case, other characters close to marked sections may be set as a
keyword:
 When a marking is drawn over another line (upper or lower)
 In the following cases, characters not highlighted by a marked section may be set as a
keyword:
 Catalogs, pamphlets, and other color documents
 Documents containing colored characters, figures, pictures, tables, lines, or other
elements
 Documents containing marked areas other than those containing character strings
to be set as keywords
 Tainted documents
 Documents containing sections framed by a highlight pen
HINT
 If setting a keyword is not successful, improving image scanning quality may help.
 Keywords for PDF files can be checked from the Adobe Acrobat document properties
menu.
Bad Example 1
(The characters are not
completely covered)
284
5.9 Setting the Scan Options
Bad Example 2
(The color is not even)