Good link from jamesmillner. Receipt machines usually have built-in fonts that are not available for use on desktop computers. I have a MyFonts album of typefaces similar to printed receipts which has a few not mentioned in the Stack Exchange discussion.
The two closest matches to your sample I can find are Hypermarket and Rysse.
this stack exchange answer is a good intro to the receipt font question.
The precise font might not be available at all (think of the opportunities for fraud).