| 摘要 |
PURPOSE:To provide an internally explosion proof printer whose equipment and running costs can be reduced. CONSTITUTION:In the title printer of a petrol pump, in which a printer 32 to print oil feeding data on a bill 36 is housed in a chamber of internally explosion proof, an air sending means 15 to sent fresh gas into the chamber 33 in response to an oil feeding demand signal and stop the sending of the gas in response to a printing finish signal of the printer 32, and a printer driving means 34 to drive the printer 32 in response to an oil feeding finish signal are provided. |
