problem with appendBitmap (print from local storage)

[joansolabasetis]

Hi,
I'm printing a ticket from my printer (sm-s230i) and everything works fine with the exception that I can't print an image from the local storage of my device.
I use appendBitmap. My code is as follow:

const commandsArray = [];
  commandsArray.push({ appendCodePage: StarPRNT.CodePageType.CP858 });
  commandsArray.push({ appendEncoding: StarPRNT.Encoding.Windows1252 });
  commandsArray.push({ appendInternational: StarPRNT.InternationalType.Spain });
  commandsArray.push({ appendAlignment: StarPRNT.AlignmentPosition.Center });

  commandsArray.push({ appendLogo: 1 }); //printed
  commandsArray.push({ append: '\n\n' }); //printed
  commandsArray.push({ appendFontStyle: 'A' }); //printed
  commandsArray.push({ appendEmphasis: 'Firma Cliente\n\n' }); //printed
  uri= 'file:///storage/emulated/0/Pictures/imageBitmap.bmp'
  commandsArray.push({ appendBitmap: uri, width:30, height:30 }); //not printed

I've passed the uri without 'file://', and data image directly, among other solutions but nothing seems to be working.

Is there any possibility that this functionality is not compatible with this printer? Is there any error in my code?

Thank you