Reading printer data
<p>I've been presented with a task where I'm unfamiliar with concepts. </p>

<p>Task - read printer data stream from a POS system. </p>

<p>Terms mentioned
ESC/P </p>

<p>I have to read values coming from a POS system. My first question is how can you determine the start and end of a print job?</p>

<p>I guess I'm looking for control characters of a printer maybe?</p>

<p>Also, is there a way to simulate this without interrupting the POS?</p>

<p>Anyone know good examples or references they are familiar with themselves?</p>
