Comment 2 for bug 693393

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Till Kamppeter (till-kamppeter) wrote : Re: Trying to print manual duplex booklets leads to four regular printouts

I have the HP Color LaserJet CM3530 MFP and have tested it also with the PostScript PPD file which comes with HPLIP 3.10.9. I do not get extra copies if I choose manual duplex and/or booklet printing. These two options get completely ignored for me. I never tested manual duplex before on this printer, as it has a built-in duplex unit.

So my question to the HPLIP developers at HP: How are these options implemented? Are they really implemented in the printer's firmware (this would be what I expect if these options are in the PPD file for Linux/CUPS)? Or are they implemented in some part of the Windows or Mac driver? In that latter case the options should be removed from the PPD file as they do not work under Linux or an additional CUPS filter has to be introduced. For example the filter could be named "hppagemgr" and included by adding a line like

*cupsFilter: "application/vnd.cups-postscript 0 hppagemgr"

to the PPD file. The filter does nothing more than rearranging the incoming PostScript to generate a PostScript according to the PPD's/job's settings for manual duplex and booklet printing.