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  1. Jeroen Bobbeldijk

    Odd compression method for Raster Graphics

    After a lot of mailing, calling and waiting, my question went through multiple offices. It ended up in Japan (I guess at OKI HQ). They decided they do not want to disclose any information about this compression.
  2. Jeroen Bobbeldijk

    Odd compression method for Raster Graphics

    Hi Jim, They don't seem to have anything to help me. I have given up trying to figure out this compression format myself. I'm still waiting for a reply from OKI. @Hugh, It looks like that requires a special driver, so I don't think that's it.
  3. Jeroen Bobbeldijk

    Odd compression method for Raster Graphics

    Jim, The driver that produces this output is: https://www.oki.com/ge/printing/support/drivers-and-utilities/?id=46297301FZ01&tab=drivers-and-utilities&productCategory=mono&sku=44566325&lang=ac2 The device that was used is an OKI B431, but I know that the PCL also works fine on OKI B412 (as I...
  4. Jeroen Bobbeldijk

    Odd compression method for Raster Graphics

    Jim, You have mail :) What we are doing, basically: intercept print jobs with a hardware device, read them, conditionally edit them or just pass them along. We have got this working for multiple protocols (like ESC/POS, XPS and PCL), but this device has some specific PCL which is giving us a...
  5. Jeroen Bobbeldijk

    Odd compression method for Raster Graphics

    Jim, I don't have any other PCL printer, but my guess is that it won't print. A newer OKI printer also prints it just fine though, while that specific device driver does not use 131. I'd happily send you the PCL data if you'd like to try. I could only find 1 PCL viewer that could view the file...
  6. Jeroen Bobbeldijk

    Odd compression method for Raster Graphics

    jlasman, It's definitely PCL5e, I already created a parser that is able to read the full job, and it follows the PCL 5e spec completely. The print job also contains the following information: @PJL COMMENT Product Name : OKI PCL5e Printer Driver @PJL COMMENT Device Name : OKI B431(PCL) @PJL...
  7. Jeroen Bobbeldijk

    Odd compression method for Raster Graphics

    Hi Hugh, Thanks for your reply. I have searched a lot for documentation on the format, but sadly couldn't find it. I also think it's an OKI extension. I'm currently in contact with OKI tech support, but they are telling me they don't use compression method 131. I have done some tests, and it...
  8. Jeroen Bobbeldijk

    Odd compression method for Raster Graphics

    Hi there! I'm currently trying to decode a PCL file that is captured from an OKI printer. The full page seems to be printed as a Raster Graphic. I have all the command decoding complete, the only thing I need to finish is the decoding of the Raster Graphics data. Now comes the odd thing about...

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