PPD files vs printer drivers also LPD vs LPRng vs CUPS
punosevac at math.arizona.edu
Sat Nov 10 16:02:19 PST 2007
Predrag Punosevac wrote:
> I am trying to understand little bit better Unix printing. I am
> terribly confused about
> the real meaning of PPD files and printer drivers.
> According to this
> PPD files are post script description files that act as a drivers for
> post script printers. This seems clear to me but I have never had a post
> script printer in my life.
> According to same page CUPS-PPD are used by CUPS to do post-script
> printing on non-postscript printers by directing files through
> CUPS-filter. Could somebody explain this things better to me. Every
> time I used CUPS the PPD files where enough to enable me printing.
> Did I really use some other drivers beside these PPD files or did CUPS
> communicate with my printers with some generic driver and just
> uses PPD files to do filtering.
> In LPD it seems to me that this is more clear as when I run ./SETUP
> apsfilter I am really question to select the driver from the
> Ghostscript collection. I have never used LPD without the apsfilter.
> What is the simplest way to send ps file to the printer that doesn't
> speak ps? If I could do that everything else is peace of cake. I read
> very carefully printing form the handbook but I want to learn more.
> Could anybody explain me if there are some strong reasons for choosing
> LPD over CUPS or LPRng system (seems just GUI added on the top of LPD)
> It would logical to me that LPD is safer (CUPS port has some security
> warnings) and maybe more reliable. In any case it is included in the
> base system and I prefer to use something included in the base system
> Thanks to ALL
> freebsd-questions at freebsd.org mailing list
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like a good starting point for my questions.
Any Adobe or CUPS developers around that can give me more information.
What should I read?
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