I assume you meant IPP not IPPS
see the section on "Legacy printer support"
http://en.wikipedia.org/wiki/AirPrint
My IT, however blocked the mDNS
Talk to them. Progress is making changes. Remember, IT didn't approve of PCs.
You need the AirPrint version of IPP. You need a means of communicating over wifi with your printers.
printing to a non-airprinter from an iPad
To print from the iPad, your going to have to install some more software:
-- install a printer app on the ipad. many printer makers have iPad applications for their printers. Look in the app store
-- install enabling software on a computer which you have connected the printer
on your iPad install the Helper app -- /print n share
This should/may get around the mDNS blockage.
Print directly to the widest range of network or WiFi printers available in any app. Alternatively print via your computer to ALL printers including USB & Bluetooth printers. View read and display large PDF, Office & iWork files. Easily transfer & store files from the Cloud or your computer.
https://itunes.apple.com/us/app/print-n-share/id301656026?mt=8
on your server
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
You need a means of communicating over wifi with your printers.
You will need to avoid going through your existing wifi routers. You will note that you will need to be in direct wifi range of the printer or print server. Wifi range in a building is about a 100 feet.
solutions ( your IT may not like this. Be sure your boss approves of these solutions. )
-- install wifi donge on your print servers. This will give you a direct wifi path to your printer servers
-- buy a new printer that supports adhock printing.
-- install the airprint software on some pc with wifi. The software will forward your print job to the real printer.
More info
For a comprehensive list of links,
see Texas Mac Man list:
https://discussions.apple.com/thread/4820371?answerId=21291967022#21291967022
or
http://ipadhowtouseit.com/ipad-printing/