After trying quite a few printing Apps for my iPad, I ended up with print n share PRO iPad Printing which prints to direct to all of my non airprint printers. My WiFi printers worked fine out of the box but my Bluetooth printer needed a free helper app on my mac.
Print n share pro also has a superb mobile printing solution by creating an Ad Hoc network on an iPhone so you can print direct to a WiFi printer in a van. Print n Share Pro for iPad on the iTunes App Store
Print n share pro also has a superb mobile printing solution by creating an Ad Hoc network on an iPhone so you can print direct to a WiFi printer in a van. Print n Share Pro for iPad on the iTunes App Store