Casio DT-X8 Series Software Manual page 80

The maximum numbers of digits listed in the above table apply to cases where the entire
symbology consists of numeric characters only. The maximum number is reduced to two third
(2/3) of each maximum no. of digits for alpha-numeric characters; and reduced to one third (1/3)
for Kanji characters and binary numbers. These are merely reference, and the actual range of
readable symbologies varies according to the conditions (resolution, PCS, etc.) of individual
symbol and the surrounding environment.
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