Mobile Print for brother is demo application of brother Print SDK for printers of Brother Industries, Ltd. Print web pages and files to Brother printers from iPad/iPhone with Moble Print for Brother. A connection method is wireless LAN. If you want to print more convenient, "Pocket Print" (surcharge) please consider. https://itunes.apple.com/us/app/pocket-print/id593711073?mt=8 [Keyfeatures] - Print files from iPad/iPhone Supported file formats: PDF(The encryption PDF is un-corresponding)(*1), JPEG - Print the file is being saved to the online service(*2) Supported online service:Dropbox Supported file formats: PDF(The encryption PDF is un-corresponding), JPEG - Print web page(*2) Web authentication is not supported. (SSL, Digest, Basic) - Print preview - Printer Setup (*1) In addition to PDF in application, a PDF file can also be received and printed from other applications using an Open In function. (*2)At the time of Adhoc connection, when it is a model without 3G or LTE, Web connection cannot be performed. (In the case of Wi-Fi model, printer and Internet connection simultaneously is not possible.) Printers Supported <Brother Industries, Ltd> ・PJ-673 ・RJ-4040 ・RJ-3050 ・RJ-3150 Support OS ・iOS 6.0~8.1 Support Device ・iPhone 4, iPhone 4S, iPhone 5 , iPhone 5s ・iPad 2, iPad 3, New iPad, iPad mini, iPad mini retina, iPad Air [Note] *** There is a problem ad hoc connection is disconnected frequently in iOS8. *** PJ-673 http://support.brother.com/g/b/producttop.aspx?c=eu_ot&lang=en&prod=pj673euk RJ-4040 http://support.brother.com/g/b/producttop.aspx?c=us&lang=en&prod=rj4040eus Try to ON the [Auto-Join] in [Settings]-[Wi-Fi]. In the case of Adhoc connection, recommend the use of [OFF] the AirDrop and Bluetooth. There is a problem from which printer connection is cut at the time of [Open-In] . (iOS 7.1.2)