[cups.development] ppd file question

[Michael R Sweet]

Jayacharan Rampog wrote:
> hi,
> 
> I am developing driver for Thermal printer,which will work with raster filter,it's priontg properly but not with my dpi's.because,in my ppd I mentioned the default resolution 180x180dpi,but when i'm trying to ACCESS/READ through Pageheader it's reading 100x100dpi.
> 
> how i know this is,in my filter i have added the line follwing:
> 
> printf("%d\t%d\n",header->HWResolution[0],header->HWResolution[1]);
> 
> o/p: 100   100
> 
> in ppd file resolution like below:
> 
> DefaultResolution: 180x180dpi
> *Resolution 180x180dpi: "<</HWResolution[180 180]/cupsBitsPerColor 1/cupsBitsPerPixel 1/cupsRowCount 8/cupsRowFeed 0/cupsRowStep 0/cupsColorSpace 3>>setpagedevice"
> 
> 
> what may be the problem why i'm not getting exact dpi which i mentioned my ppd file?

Look at the error_log output to see if Ghostscript is interpreting
your code correctly.

Also, try printing image files from the command-line to see if the
imagetoraster filter handles things better...

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Michael R Sweet                        Senior Printing System Engineer