it's printed from a dot-matrix printer, just ignore the dot-matrix display effect, does someone know what is its original font's name. thx for reading

It's probably custom for that dot matrix printer. Do you know the brand?
Here you may find something similar:
http://www.dafont.com/es/bitmap.php

that font come from oki dot matrix printer, model number might be microline 184 turbo..thx for reply