force grayscale

[casueps]

> casueps wrote:
> >>>>>The driver for my printer does not allow choosing between color or
> >>>>>grayscale, so I can only choose if the program options allow it. I want to make a filter in cups so that every user that prints through it with any program can print in grayscale.
> >>>>>I found the ghostscript command that reads a color PS file and outputs a grayscale PS file but I don't know how to insert it into the printer  options. Can you help me?
> >>>>>
> >>>>>
> >>>>
> >>>>Tell us what printer you are using. If it is a native PostScript printer, there may be a chance
> >>>>to force the printer do act as a grayscale device.
> >>>>
> >>>
> >>>
> >>>It's a Canon CLC3220. I think it's a native PostScript printer.
> >>
> >>Olease post (an URL to) the PPD you use, as there are at least two different controllers for
> >>this printer that support PostScript.
> >>
> >
> >
> > I will post the links to two PPDs, one is the specific driver for the printer and the other one is for Generic PS, we can print with both of them but neither of them allow grayscale.
> >
> > http://rapidshare.de/files/35561345/ppds.zip.html
> >
> >
>
> When using the C3200.ppd, you should select the option
> 	ColorMode=BW
> The other (generic) PPD does not provide any choices for color mode
> selection, but you could insert a
> 	<</ColorMode 0>>setpagedevice
> into the PostScript stream or insert it into the PPD as a job patch file.
>
> I suggest to use the C3200.ppd it works (i.e. if it is the correct PPD for
> your printer's controller.
>
> Helge
>


Thanks.
The ColorMode=BW didn't work so I finally forgot about those PPDs and searched for another that worked better. I found that I could use the same PPD that is stored in c:\windows\system32\spool\drivers ... when I install that printer on Windows (I thought that wouldn't work on Linux so I hadn't tried that PPD)