- (void) randomTest
{
    char printerInitializeCommand [] = {0x1b,'@'};
    char formFeed[] = "\x1B\x0C\x00";
    char printableWidthCommand[] = {0x1b,0x1e,'A',0x00};
    char setRasterPageLengthCommand [] = {0x1b,'*','r','P','0',0x00};
    char startPageCommand [] = {0x00};
    char printDensityCommand [] = {0x1b,0x1e,'d','3' };
    char rasterModeStartCommand [] = {0x1b,'*','r','R',0x1b,'*','r','A'};
    char printSpeedCommand [] = {0x1b,'*','r','Q','0',0x00};
    char docCutTypeCommand [] = {0x1b,'*','r','E','9',0x00};
    char rasterImage [] = {
        //          n1  n2 d1    d2..
        0x1b, 'b', 0x2, 0, 0x00, 0x00, // data
        0x1b, 'b', 0x2, 0, 0x1F, 0xF8,
        0x1b, 'b', 0x2, 0, 0x3F, 0xFC,
        0x1b, 'b', 0x2, 0, 0x77, 0xEE,
        0x1b, 'b', 0x2, 0, 0xF8, 0x1F,
        0x1b, 'b', 0x2, 0, 0xF8, 0x1F,
        0x1b, 'b', 0x2, 0, 0xF8, 0x1F,
        0x1b, 'b', 0x2, 0, 0x0F, 0xF0,
        0x1b, 'b', 0x2, 0, 0x1F, 0xF8,
        0x1b, 'b', 0x2, 0, 0x1F, 0xF8,
        0x1b, 'b', 0x2, 0, 0x3E, 0x7C,
        0x1b, 'b', 0x2, 0, 0x38, 0x1C,
        0x1b, 'b', 0x2, 0, 0x79, 0x9E,
        0x1b, 'b', 0x2, 0, 0x73, 0xCE,
        0x1b, 'b', 0x2, 0, 0x73, 0xCE,
        0x1b, 'b', 0x2, 0, 0xF9, 0x9F,
        0x1b, 'b', 0x2, 0, 0xF8, 0x1F,
        0x1b, 'b', 0x2, 0, 0xFE, 0x7F,
        0x1b, 'b', 0x2, 0, 0xFF, 0xFF,
        0x1b, 'b', 0x2, 0, 0xFF, 0xFF,
        0x1b, 'b', 0x2, 0, 0x00, 0x00,
        0x1b, 'b', 0x2, 0, 0x00, 0x00,
        0x1b, 'b', 0x2, 0, 0x00, 0x00,
        0x1b, 'b', 0x2, 0, 0x00, 0x00};
    char endPageCommand [] = {0x1b,'*','r','Y','1',0x00,0x1b,0x0c};
    char endJobCommand [] = {0x04,0x1b,'*','r','B'};


    [self sendBytes:printerInitializeCommand ofLength:sizeof(printerInitializeCommand)];
    [self sendBytes:printableWidthCommand ofLength:sizeof(printableWidthCommand)];
    [self sendBytes:printDensityCommand ofLength:sizeof(printDensityCommand)];
    [self sendBytes:rasterModeStartCommand ofLength:sizeof(rasterModeStartCommand)];
    [self sendBytes:printSpeedCommand ofLength:sizeof(printSpeedCommand)];
    [self sendBytes:setRasterPageLengthCommand ofLength:sizeof(setRasterPageLengthCommand)];
    [self sendBytes:docCutTypeCommand ofLength:sizeof(docCutTypeCommand)];
    [self sendBytes:startPageCommand ofLength:sizeof(startPageCommand)];
    [self sendBytes:rasterImage ofLength:sizeof(rasterImage)];
    [self sendBytes:endPageCommand ofLength:sizeof(endPageCommand)];
    [self sendBytes:endJobCommand ofLength:sizeof(endJobCommand)];
}