Re: CUPS

[Dimitri Maziuk <dmaziuk@yola.bmrb.wisc.edu>]

* Alan Shutko (ats@acm.org) spake thusly:
> Serge Rey <serge@rohan.sdsu.edu> writes:
> 
> > with the default hp laserjet ppd file i could only get a max of
> > 600dpi. using the lm2100m ppd i can do 1200dpi.
> 
> The drivers for the LJ2100M come with a PPD specifically for that
> printer, which do 1200 dpi and allow a bunch of other features.  It
> looks like the cupsomatic ones may allow them too, but I really don't
> understand how it works, or how it differs from the vendor PPD.
> Anyone know?

I don't quite understand the question, but here's the relevant
part of gimp-print ppd for LJ4 (not LJ:

*OpenUI *Resolution: PickOne
*OrderDependency: 20 AnySetup *Resolution
*DefaultResolution: 300x300DPI
*Resolution 150x150DPI/150x150 DPI:     "<</HWResolution[150 150]/cupsCompression 0>>setpagedevice"
*Resolution 300x300DPI/300x300 DPI:     "<</HWResolution[300 300]/cupsCompression 1>>setpagedevice"
*Resolution 600x600DPI/600x600 DPI:     "<</HWResolution[600 600]/cupsCompression 2>>setpagedevice"
*CloseUI: *Resolution

HP's PPD:

*JCLOpenUI *JCLResolution/Resolution: PickOne
*OrderDependency: 10 JCLSetup *JCLResolution
*DefaultJCLResolution: 600dpi
*JCLResolution 300dpi/300 dpi: "@PJL SET RESOLUTION = 300<0A>"
*JCLResolution 600dpi/600 dpi: "@PJL SET RESOLUTION = 600<0A>"
*JCLResolution 1200dpi/1200 dpi: "@PJL SET RESOLUTION = 1200<0A>"
*JCLCloseUI: *JCLResolution

plus it has a bunch of halftone sections for every resolution
listed (not in gimp-print ppd).

I've no idea how it works. I can make an educated guess, 
& I'm sure your guess will be as good as mine.

Dima
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