Android POS application with Printing Receipts

I need an android application developed for POS purposes. The application needs to use an internally developed web based POS application. This can be as simple as a simple web browser app. However the app developer needs to add the following additional features: 1) ability to set and save the web pos url in the app. 2) Enable printing of the generated receipt (currently in web pos using html) 3) Ability to scan and setup Epson & compatible receipt / pos printers. Lan / wifi / usb and via bluetooth connections. 4) Should have complete control on print settings. (print logo, cut receipt, size, etc) 5) Ability to print automatically to different printers based on a set condition / character / data embedded in the print document. The developer must also be able to advise our internal developers on the setup / design of the print document, in relation to integrating with the printing from within the app. Full documentation and code must be provided.