Help
Can I scan from my wifi printer to my I pad?
iPad, iOS 6.1.2, Hp wifi printer
I don't believe you can do that using AirPrint ... but perhaps another app would do it.
For example, with my Epson printer (which is AirPrint capable), I can use Epson iPrint on my iPad to drive a scan on the printer, and then send the resulting PDF or JPG file in an email which I can receive on the iPad.