Is "runEPS: Not DSC" a problem?

[Yu Guo]

> Yu Guo wrote:
> > ...
> > I also tried to print the raster data into a file, the output is
> > still not correct (it is not what I want to print).
>
> What is wrong about it?
>
> --
> ______________________________________________________________________
> Michael Sweet, Easy Software Products           mike at easysw dot com
> Internet Printing and Publishing Software        http://www.easysw.com


I think I may ask my question in another way in order to slove the problem.

My printer only accepts normal ASCII text as input. But I would like to print more format than text such as PDF or PS.
So I think I could use the raster filter to convert the PS to raster data and write a driver to convert raster data into the printer's language.

So the basic question would be :
Is it possible to convert raster data in to normal ASCII text?


I wrote some code like this to convert:

......
  ras = cupsRasterOpen(fd, CUPS_RASTER_READ);

  while (cupsRasterReadHeader(ras, &header))
  {
     //prepare buffer
     StartPage(ppd, &header);

     for (y = 0; y < header.cupsHeight; y ++)
     {
       if(cupsRasterReadPixels(ras, Buffer, header.cupsBytesPerLine) < 1)
         break;

       //print a line to printer
       fwrite(Buffer,(int)(header.cupsWidth + 7) / 8, 1 , stdout);

       //print a line to debug file
       fwrite(Buffer,(int)(header.cupsWidth + 7) / 8, 1 , debug_fp);

     }

     //free buffer
     EndPage();
  }
......

But it does not work even for the normal text file.
I tried to print a text file containing only this line: "This is raster test - 25-09-06!"
But what I got from the output is not like the input and not human readable.

There are some information from the code and the printing:
In StartPage: Size of buffer: 48
PAGE: page: 1 ; number of copy:1
cupsHeight: 591
cupsWidth: 384
(cupsWidth+7)/8: 48


Therefore, if the raster data can be converted into normal text, the second question would be:

What can I do to translate the raster data into normal text?

Thank you for the help very much!!!

YuGuo