Sony SVT11213CXB - Manual (Page 251)

Make sure your app is working properly.
The app may not support your document format. In such a case, your document will not be
printed properly.
Contact the app publisher or the manufacturer of your printer.
Make sure the correct printer port for your printer is selected.
For more information on the printer port settings, refer to the manual that came with the
printer, or contact the manufacturer.