IPad Advanced printing issue

Question

Hi, all, I work for a K-12 school and we are running into a crazy problem. 
Problem: iPad isn't printing to a listed iPad compatible printer.
Scenario: On a vlan.  Using a Mac server as a print server.  iPad & Print server are on the same vlan (v1).  Printer is on a different vlan (v2).
Testing: From my computer, on the v1, I can print through the print server, to the printer on v2.
             Originally, I was able to print from the iPad, on v1, through the print server, to the printer on v2.  After a couple of successful print jobs, I'm no longer able to print using the iPad.
Observations:  On successful printing, once you submit the print job from the iPad, the iPad creates a "Print Que" (which can be found if you hit the home button twice, the slide to the screen to the left of the home page).  Right now, when I submit a print job, I see no "Print Que".  It's almost like the iPad doesn't submit the print job.
General:  Yes, I have restarted the iPad, the print server, and the printer.  I've removed the printer, readded the printer, and even tried different print drivers.
Question:  What would cause the iPad to not create the Print Que?  Does anyone have any other suggestions?  Thanks for your help with this!
Kevin

Answer 1

Testing: From my computer, on the v1, I can print through the print server, to the printer on v2.
             Originally, I was able to print from the iPad, on v1, through the print server, to the printer on v2. 
After a couple of successful print jobs, I'm no longer able to print using the iPad.  I do not know why this worked nor why it failed.
I found that if we set up the iPAD, Print Server, and Printer on the same vlan, then everything prints just fine.  I assumed that the iPad would only communicate with the Print Server when it had a print job....Does the iPad communicate with the Printer directly?
What print server are we talking about?  I didn't think that the default Apple Print Server included the ability to communicate with the ipad about remote prints. 
In general, the ipad talks directly to an airprinter via your wifi network.  The protocol isn't route-able so the printer has to be on the same local area network.  { What I do not know is what is the "same" lan. Is it same router or similar address like 192.168.1.x?  } 
If you want to have the printer on a different lan you could:
-- buy extra software to make airprint protocol route-able. 
-- install a printer server that understands airprint protocol to display a remote printer as a local printer.
Software for your computer's printer:
Enterprise level support for Mac and Windows
   Presto
    monthly subscription fee
    http://www.collobos.com/index.html
     Makes any printer AirPrint® compatible so you can print from an iPad® or iPhone®. 
     Reportedly works for any router.
     http://www.netgear.com/landing/genie/default.aspx
Mac software
Printopia
   http://www.ecamm.com/mac/printopia/
handyPrint  -- donationware
   http://www.netputing.com/handyprint/
Should you have some office printer that are connected to a computer there are print enablling applicaionts you can run on the iPad to print to such printers.
For Windows, try:
   O'Print
      http://oprintware.com/
   PrintCentral
     PrintCentral is the supreme printing app for the iPad, iPhone or iPod Touch
     A real DEBE -- does everything but eat.
     http://mobile.eurosmartz.com/products/printcentral.html
Mac and Windows
"WePrint enables printing to shared printers for iOS/Android devices from our range of printing Apps."
http://mobile.eurosmartz.com/downloads.html