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Old 08-26-2015, 06:09 AM   #1
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How cups creates rasters for multiple languages ?

I need to use cups to print multiple language (UTF-8) encoded data. How does cups know which language character is given for print ? In the case of dot-matrix printers how cups creates correct raster data for given language character ? Is there an internal mapping used for each character ?
Old 08-29-2015, 08:18 PM   #2
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My knowledge of CUPS is limited, so I apologize upfront if I can't answer your questions accurately or completely. You may get the answers you need by way of the CUPS Mailing List.

Anyway, I believe that CUPS uses $LANG environment variable by default to determine applicable character sets, but the 'DefaultLanguage' option can still be set explicitly in cupsd.conf if desired.

man cupsd.conf
I know little about the CUPS workflow used with printing text files to dot matrix printers. CUPS uses mime.convs to determine how particular files should be processed before any printer-specific processing is applied. So, you may want to research that a little further first.

There is some good information about CUPS filters and how a '*cupsFilter' entries in given PPD files define how to convert various data types to printer-specific data explained here:

Hope some of this information is useful to you.


cups, driver, printer

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