| 摘要 |
In a bar-code reader, a reading unit reads characters from a bar code, based on parameters. A storing unit stores a plurality of signal-waveform information corresponding to a plurality of character patterns. A selecting unit makes an operator select a correct-reading character from among a plurality of the characters, if there is an occurrence of a wrong reading. A comparing unit compares a pattern corresponding to the correct-reading character selected and a pattern acquired from a plurality of signal-waveform information while changing the parameters one by one. Based on a comparison result, a parameter-setting unit sets in the reading unit, the parameters for which the occurrence of the wrong reading is least.
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