| 摘要 |
An electronic cash register having a plurality of keys arranged on a key board can provide optionally predetermined key functions to the plurality of keys. The cash register comprises an indicator for successively indicating designations of keys at least necessary for setting key positions. When the key designations are indicated on the indicator, optional keys on a key board are actuated, and then, key codes of the actuated keys are set as key codes corresponding to function codes of the indicated key designations, so that keys at least necessary for setting key positions are set. Thereafter, function codes corresponding to key codes of the respective keys are set by using the set keys.
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