Is there a reason you are using the parallel port? As far as I can tell, that printer should be able to use a USB cable, which is much easier
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Do you know if you are using a parallel cable on this printer, as it could be that you actually are using a USB cable and this is why there is a problem. Sorry if you are already aware of this, but it is worth mentioning just in case. I've attached an image of what a parallel cable looks like: