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Re: Question about HPLIP, PPD, CUPS, PostScript printer and non-PostScript printer



On Mon, 2006-05-15 at 06:53 -0700, Leon Pu wrote:
> Hi all,
> 
> could any body explain the relationship between HPLIP, PPD, CUPS,
> PostScript printer and non-PostScript printer?
HPLIP provides the interface between the program/user who wants to use
the printer.
PPD describes the attributes of the printer to the system.
CUPS in simple terms is the print spooler for all printers in the
system.
a postscript printer has a built-in postscript interpreter so can accept
postscript commands
a non-postscript printer is dumb, does not understand postscript and has
to have the commands translated for it, usually by ghostscript or
something similar.
> 
> Is it possible to let non-PostScript printer print out PostScript file?
Yes, ghostscript is used to do the translation
> 
> Is HPLIP developed to let HP printers work in Linux?
Exactly right, the HPLIP site on sourceforge has a large list of
supported printers. HPLIP also provides an interface for all-in-one
devices to allow the use of the scanners as well and it is planned to
allow the use of the in-built faxes in the future.
> 
> Should all HP printers which supported by HPLIP work in Linux?
Yes, some devices such as Officejets etc use Deskjet interfaces for the
printing
> 
> Is PPD used to let non-PostScript printer print out PostScript file?
PPD is used to describe the attributes of the various printers.
> 
> 
> Best regards,
> Leon
> 
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