IPad 3 Printing

Please follow the link. HP Printers How to Print from iPhone iPad or iPod Touch HP Customer Support

To help you connect your ipad to the computer, please follow the step-by-step instructions given below:
- Turn both the computer and iPad ON before connecting.
- Plug the iPad's docking port into the appropriate end of the dock connector-to-USB cable.
- Plug the USB end of the iPad's dock connector-to-USB cable into an open USB port on your desktop. If iTunes doesn't open automatically, open the program to sync files and apps between the devices.
- Do not disconnect while the iPad is syncing or the sync won't complete.
- Remove either end of the cable to disconnect your iPad from the PC.
- After the first connection, you may choose to connect the two via Wi-Fi so you don't need to use the cable.
- Using iTunes, you can sync your audio, video, photos, apps and documents. This lets you transfer important files and apps you use for your business between your iPad and computer.

GuruAid.com

Can you install Dropbox app on both tablets to transfer pictures? Or feel free to try this iPad file transfer program on your computer. Transfer Files among iOS Devices iTunes and PCs with Ease

If your wireless printer is an HP, HP has an app called "HP ePrint" on the iTunes App store. I have used it with good success.

you might you have more printing control if you use the printcentral app
also what printer do you have?

I had the same problem. When I went to the connected computer, used administrative privileges, went to the control panel, and repaired the Apple apps and iTunes. Restarted the iPad and it printed!

Your options seem to be kind of slim. There are many printing apps available, but from what I have read many of them do no perform properly.
Apple's official answer seems to be syncing your documents to your PC or laptop and then printing from the computer.
Try doing a quick search in the App Store and maybe you will have better luck and find one that will work with your printer.

If you have a Mac you can do it this way


Make sure you have the Pages app installed on your iPad.
Connect the iPad to your computer using the appropriate USB cable.
Open iTunes, then locate your iPad in the source list and select the Apps tab. Scroll down to access the File Sharing Pane.
The File Sharing Pane is a centralized location where you can manage the transfer of documents to and from your iPad. To print, transfer the desired document from the iPad to the Mac's hard drive. Then simply open and print using a device connected to that Mac or a device on the Mac's network.


Alternatively, e-mail yourself any documents you want to print, then open them on a Mac with printer access and print from there.


Printing using apps

Shop around. Each printing app works a little differently. When PCMag.com originally reported on iPad printing apps in April 2010, it found few that worked particularly well -- and several that didn't work at all. No doubt this trend has continued as developers continue to bring out new apps.
PrintCentral is an app that can be used with iPad, iPhone and iTouch. Its developers tout it as a one-stop-shop for mobile printing needs. MacWorld has awarded it 4 out of 5 mice and EuroSmartz.com has named it its iPad App of the Week. It can print directly to most wireless printers.
Whether you opt for PrintCentral or another printing app, make sure to review any instructions carefully to get the best performance.

you can only print from an ipad using the airprint app if you have one of these printers read more about it here http://www.apple.com/ipad/features/airprint.html

• HP Envy e-All-in-One series (D410a)
• HP Photosmart Plus e-AiO (B210a)
• HP Photosmart Premium e-AiO (C310a)
• HP Photosmart Premium Fax e-AiO (C410a)
• HP Photosmart e-AiO (D110)
• HP Photosmart eStation (C510)
• HP LaserJet Pro M1536dnf Multifunction Printer
• HP LaserJet Pro CM1415fn Color Multifunction Printer
• HP LaserJet Pro CM1415fnw Color Multifunction Printer
• • HP LaserJet Pro CP1525n Color Printer
  • HP LaserJet Pro CP1525nw Color Printer
  • HP Officejet 6500A e-AiO
  • HP Officejet 6500A Plus e-AiO
  • HP Officejet 7500A Wide Format e-AiO
  • HP Officejet Pro 8500A e-AiO
  • HP Officejet Pro 8500A Premium e-AiO
  • HP Officejet Pro 8500A Plus e-AiO

You need to download an App for it from the itunes Store. The best ones for printing are PrintCentral http://itunes.apple.com/au/app/printcentral-for-ipad/id366020849?mt=8
and Print n Share http://itunes.apple.com/au/app/print-n-share-for-advanced/id301656026?mt=8

But keep in mind that printing is still not great for iPad even with these Apps (please read the reviews before you buy), and the next version of iPads apparently will have printing capabilities.