| 摘要 |
A bar code reading apparatus comprises a reading unit for optically reading a bar code and generating an output data corresponding to this bar code, a memory, and a data processing unit for storing the output data from the reading unit into the memory and making a bar code data in accordance with the content of the memory. This reading apparatus further has a mode selection flag (PSF) for selectively instructing either one of the first and second modes, and the data processing unit stores the output data from the reading unit as it is into the memory when the first mode is designated by the mode selection flag (PSF), while the data processing unit stores the inverted data of the output data from the reading unit into the memory when the second mode is set by the mode selection flag (PSF).
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