title: Printing a page to different printers in a web app
body: <p>I want to write a web app that can process a users presentation which when submitted, gets sent to their local system printers - one part of the order will go to B&amp;W laser printer and another part goes to another printer for another process.</p>
  
  <p>Ideally, this will be able to run on any of the major systems - Linux, OSX or Windows.</p>
  
  <p>It could be a packaged Chrome or Firefox app or extension, but I can't tell if there is sufficient access to the system printers. (I can see all the printers available to my current chrome installation - but are they available to an extension?). I can't see the code in any demos or libraries.</p>
  
  <p>I've seen reference to NPAPI, but I can't tell if that's what I need either - if so would I need to write an app for each of the major platforms or each kind of printer?</p>