| 摘要 |
<p>PURPOSE:To prevent occurrence of the abnormal state due to reduction of the battery residual amount by inhibiting the printing automatically when the battery voltage lowers less than the fixed level, thus ensuring the effective use of the battery. CONSTITUTION:For electronic desk computer 1 which gives the operation to the data supplied and then displaying the operation result, the voltage of driving battery 2 is compared with the reference voltage at comparator 3. Then the control is given to print inhibition circuit 6 of comparator 3 to inhibit the action of the print part, and at the same time only the display is given. And also the symbol which glows at the signal input time for print inhibition to indicate the print inhibition state is provided at the display part of the data.</p> |
