| 摘要 |
<P>PROBLEM TO BE SOLVED: To previously prevent occurrence of the situation in which electric power of an optical information reading apparatus runs out while update of a program embedded in the optical information reading apparatus is executed, and the update is forcibly terminated in the middle thereof. <P>SOLUTION: When placement of a bar code handy terminal 100 with a battery pack 28 on a cradle 34 is detected (S11), whether or not the voltage of the battery pack 28 is larger than, for example, 3.8 V is determined (S12). When the voltage value of the battery pack 28 is more than 3.8 V, it is determined that the battery pack 28 is a stable power supply, and the update of a program is started (S13). When the voltage value of power feeding to the bar code handy terminal 100 is lower than 3.8 V, it is determined that the battery pack 28 is an unstable power supply, and a display for calling an attention is displayed on an LCD 10. <P>COPYRIGHT: (C)2013,JPO&INPIT |
