To numerically evaluate a two-dimensional code on a printing medium by reading the two-dimensional code printed on the printing medium as an image and analyzing the read two-dimensional code image.
A touch type code reader 1 or the non-contact code reader 31 of a gun type performs the two ways of error bit processings relating to the read of the two-dimensional code. For example, an error bit number is checked first. Then, error bit information obtained by the checked result of error bit number checking is transferred to a host computer together with read two-dimensional code data. That is, at the time of read completion as a normal read success, the error bit number is checked and the error bit information as the checked result is transferred to the host computer together with the two-dimensional code data. In the transferred host computer, the printing quality of the two-dimensional code is numerically evaluated based on the error bit information.
FUKUSHIMA TAKAFUMI
GOTO TAKASHI
SEKI YASUHIRO
