So in case if you feel this question fits there, feel free to migrate. I am not sure if this question fits in Ask Different as my target device is an Apple Device but even then there is more than that this question would cover. Now from here I was wondering, if I can use such a 3G Wi-Fi router which suppose has a USB Port to connect my printer and provide me the option to print from my iPad?

I am planning to purchase a 3G Wi-Fi router so that I can connect my iPad outside a Wi-Fi network. I no longer have to save and send something to print it, I can just print directly from my Apple device Unfortunately, the appeal of this feature that means it really bugs me when I cant get AirPrint to work on my iPhone, iPad, or other compatible devices. But even to use it, I need a Wi-Fi enabled printer. AirPrint is one of the coolest Apple features, in my opinion. I am also aware that for certain selected printers (let say mine is one of those privilege) you can use iOS Apps from OEM such that you can print from your iPad. Tested with Brother, Epson, HP, and Canon Printers. Ideal for parties, school projects, scrapbooking, and more. It works directly from your mobile device, so you don’t even need a computer. I understand, in order to print from my iPad to a printer I need an AirPrint-compatible printer. Main functions of this HP DeskJet 3755 (3700 series) compact printer: copy, scan, wireless printing, AirPrint, Instant Ink ready so you'll never run out of ink The power of your printer in the palm of your hand: The HP Smart app allows you to easily set up your printer, scan from your smartphone, order toner, and print from the cloudsuch as. The Smart Printer lets you print your documents and photos in seconds.

I am planning to buy a 3G Wi-Fi Router.

I also have an HP printer that doesn't not have Wi-Fi capabilities.

I have a Wi-Fi iPad without 3G support.

Hp printers for ipad air