BluePrint is designed to manage printing to Zebra printers via Bluetooth**

Before starting the app pair with a Bluetooth printer. Then start the app and tap the Connect button. Tap the printer you paired with previously and once connected BluePrint is ready to print!
Now leave BluePrint running in the background (using the home key) and print from an app that is integrated with BluePrint (developers see below).
If BluePrint is running and was never connected it will send a notification. Tap the notification and then in BluePrint: Connect then Print. (Your last print file is in the buffer.)
If BluePrint is running and was connected at one point and the connection is lost BluePrint will automatically try to reconnect and print in the background.

** Any Bluetooth-capable printer that supports Bluetooth SPP can be used.

For developers:
Simply write a text file with suitable Printer Control Language for your printer to "/Android/data/biz.mpowered.blueprint/blueprint.txt"