ScanDPI is an Xposed module which allows youto scan documents with an arbitrary resolution using HPs All-in-OnePrinter Remote application, which by default is limited to 300 DPI.With this app you can release the true power of your scanner.

Note that this application requires Xposed framework (which inturn requires root access) to be installed. More information aboutXposed can be found here: http://repo.xposed.info/module/de.robv.android.xposed.installer

If you are interested in the source code of this application.Please check out the github repository:
http://github.com/deckaddict/ScanDPI.git