| 摘要 |
PROBLEM TO BE SOLVED: To easily set and alter functions while looking at a screen without looking at instruction manual. SOLUTION: In the case of selecting to specify that the charging reservation is 'month and day' or 'everyday', a down symbol mark 54 and an up symbol mark 55 of the same shape and color as those of a down button 25 and an up button 26 are displayed between the display characters of 'month and day' or 'everyday'. In the right upper area of a display screen 22, R symbol mark 56 and m symbol mark 57 of the same shape and color as those of a charging reservation button 23 where a letter of R is written and a mode switch button 24 where a letter of M is written are displayed and flickered on the upper and lower sides. On the sides of the R symbol mark 56 and the M symbol mark 57, messages of the results of pushing the charging reservation button 23 and the mode switch button 24 are displayed.
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