User manual

7
The following conditions affects the quality of the
character recognition:
• The print quality of the text
High-quality printed text produces, of course, maxi-
mum OCR accuracy. With lower-quality pages, e.g.
fax copies, OCR accuracy may be poorer. You can
calibrate C-Pen to optimize its performance under
difficult conditions; see Calibration, p. 43.
NOTE: C-Pen only recognizes machine-printed
characters such as laser-printed or typewritten text.
C-Pen does not recognize handwritten text.
• Position and movement of C-Pen
It is important how you hold and move C-Pen over the
printed text. Please read the Quick Start folder to learn
how to use C-Pen correctly. It is crucial that you
follow these instructions in order to get the best results.
• The language of the text
See Text Language, p. 43.
• Deformed characters
Anything that is not a printed character, and any
character distorted by a mark or smudge on the paper
could be unrecognizable.
• Overlapped characters
Characters in the text should not overlap.
• Italics and underlined text
Italics are, for some fonts, difficult for C-pen to read.
Underlined text is difficult for C-Pen to read because
the underline changes the shape of descenders of the
letters q, g, y, p, and j.
!