Code image quality check apparatus and code image reader

摘要

A code image quality check apparatus adapted to check the quality of a code image printed and recorded on a printing medium as an optically readable image of error correcting code data containing information data adapted to be optically read by manual scanning. The error correcting code data is provided with the ability of correcting errors in response to code image read errors. The code image quality check apparatus extracts code image read errors from the error correcting code data restored from the read code image without executing any error correcting operation and reduces the extracted read errors into numerical values, using a predetermined unit, which numerical values are then notified to the user in a predetermined display mode at the output section of the apparatus.