I.R.I.S. Readiris 14 for Mac User Guide - Manual (Page 62)

Readiris TM 14 – User Guide
57
or
o
Click Don't learn to save the result as unsure.
Use this command for damaged characters which could be confused with
other characters if learned. E.g. the number 1 and the letter I, which have an
identical form in many fonts.
o
Click Delete to delete characters from the output.
Use this button to prevent document noise from appearing in the output file.
o
Click Undo to correct mistakes.
Readiris keeps track of the last 32 operations.
o
Click Abort to abort interactive learning.
All learning results will be deleted. Next time you click Save, interactive
learning will start again.
U
SING FONT DICTIONARIES
(This feature is not available for Asian languages)
When scanning many documents of the same type, font quality and
printing quality, you may not want to repeat the learning process