| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical information reader capable of speedily reading set voltage gain, offset value and shutter speed by one time downloading even though they are lost when power source is turned off after completion of reading and they are required to be reset in the case of re-reading. SOLUTION: In the optical information reader, values expressing a reading feasibility such as the gain, the offset value, the shutter speed are stored in an EEPROM 8 being a nonvolatile memory after the reading, and when the previous reading is success the values stored is set in the EEPROM 8 in the case of the reading. |
