[cups.general] Create color / black and white queues from color printer

[Daniel J. Soto]

Hi,

thank for your reply again.

I've tried your solution and still get the job in color!

Really I begin to be a bit desperate :-(

I my opinion, the changes I do in the ppd file don't take effect in CUPS...
I don't understand the reason but it seems to be so...

It is possible that another driver is been used? Another generic driver
(foomatic?)?

My PDF.ppd, for your recomended options, is.

[...]
*ColorDevice: False
*DefaultColorSpace: Gray
*JobPatchFile 1:"<</ProcessColorModel /DeviceGray>>setpagedevice"
[...]

Note that I restart CUPS after change the ppd file.

¿Another idea?

Thanks in advance!
Daniel.

2011/10/17 Helge Blischke <h.blischke at acm.org>

> Daniel J. Soto wrote:
>
> > Hi,
> >
> > thanks for your reply.
> >
> > I have tried your option but my PDF printer (I'm using this for test)
> > still print in color... It is like CUPS doesn't use the ppd files... it's
> > possible?
> >
> > In the other hand, how I can change the appropiate value with a command
> > line? lpoption?
> >
> > Thanks in advance,
> > Daniel.
> >
> > 2011/10/17 Helge Blischke <h.blischke at acm.org>
> >
> >> Daniel J. Soto wrote:
> >>
> >> > Hello all,
> >> >
> >> > it is possible that another people have been asked the same question
> >> > but I'm googling from last ten days and I have not found anything
> about
> >> > this that I can use...
> >> >
> >> > I'm looking for a way to create two queues from the same color
> printer,
> >> > one for printing in color and one for printing in black and white (or
> >> > grayscale). I've tryed to modify the ppd file manually setting de
> >> > attribute ColorDevice to false but it doesn't work. My objetive is to
> >> > do this internally from my (php) program but I'm trying to do manually
> >> before
> >> > for understanding the process... It's seems CUPS doesn't read the ppd
> >> file
> >> > before printing (ubuntu)...
> >> >
> >> > Perphaps anybody have had the same problem before... or knows how I do
> >> > that or where I can find info about doing that...
> >> >
> >> > I would be much obliged for any hepful information...
> >> >
> >> > Regards,
> >> > Daniel.
> >>
> >> Don't touch the ColorDevice attribute but instead change the
> >> *DefaultColorSpace: xxxx
> >> (xxxx will be CMYK or RGB) to
> >> *DefaultColorSpace: Gray
> >>
> >> Helge
> >> for the grayscale queue.
> >>
> >> _______________________________________________
> >> cups mailing list
> >> cups at easysw.com
> >> http://lists.easysw.com/mailman/listinfo/cups
> >>
>
> Well, then in addition insert the following lines into your PPDs (folowing
> the DefaultColorSpace line:
>
> *JobPatchFile 1 : "<</ProcessColorModel /DeviceXXX>>setpagedevice"
>
> where XXX = Gray for the grayscale queue and XXX = CMYK or RGB
> (whatever is listed in the DefaultColorSpace line).
>
> Helge
>
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> cups at easysw.com
> http://lists.easysw.com/mailman/listinfo/cups
>
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