Even printing via USB for old printer models available!

I have long sought a way with my quite something betagteren printer (HP PSC 1100) to be able to easily and conveniently print via smartphone. This has not yet wireless network capability. With the original HP App printing with the HP PSC 1100 unfortunately does not work on USB.
With this app, printing via USB, however, works fine, if a little slow compared to a PC. However, the little bothers when you're in a hurry just not right but just wants to quickly print something without taking the printer through the house and power up the laptop and carry the printer. With USB OTG to corresponding smartphones this app is making a good job. I've tested so far with the LG G2 and the Sony Xperia Z2, both they work fine over a USB OTG adapter.
With shared as network share printers I had so far also still no problems just running, so how it should run.

The app also offers various setting options, such as paper size (A4, A3, Letter, ...) as well as several interfaces with Wi-Fi printers, scanners, Bluetooth printers, Windows printer sharing (as mentioned) USB printers, Google Cloud Print and "Business Printer" (this I can now we have not say much because I have not tested this feature).
A setup wizard helps a while even when adding the printer.
When printing, you can also select the number of Kopen, limit the print area and print odd / even pages and reverse the order (convenient if the printer all deposits up as ours, then the cover page is the front and the "end" rear).
With this app you can almost like on the PC used to print in Word and co.

There is even support for popular cloud services here, so Facebook, Box, Dropbox, SugarSync, OneDrive, Evernote. In addition will be asked before the first printing, whether a font collection, and a rendering library should be loaded so that the output is right at the end. With Android missing here apparently by default, some fonts or characters, they are loaded here later. There are even various libraries in addition to the functionality to expand and support more printers.

Commendable also is the adaptability with a selectable light or dark style, as well as an adaptable menu, deactivatable dialogues and selectable language (apart from the Android settings).

The only (cosmetic) criticism would be for me: The app has no material design and therefore acts a bit "old" compared to the rest of the system, and my other apps, but this is really to get over, because of the really high functionality and the compatibility with really old printers, which are apparently not even supported by the manufacturer.