NSData *file=[NSData dataWithContentsOfFile:[[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:@"label.txt"]];
    unsigned char *byteData = (unsigned char *)[file bytes]
    
    [zplPrinter setupPrinter:ZPL_ROTATION_180 withmTrack:ZPL_SENSE_CONTINUOUS withWidth:384 withHeight:480];
    [zplPrinter startPage];
    [zplPrinter setInternationalFont:0];
    
    [zplPrinter printData:byteData withLength:sizeof(byteData)];
    
    [zplPrinter endPage:1];
