NAME
   Printer::EVOLIS - pixel-exact driver for EVOLIS Dualys two-side card
   printer in perl

DESCRIPTION
   This is experimental support for EVOLIS Dualys 3 printer with black
   ribbon (K) to provide pixel-exact driver with support for two-side
   printing.

   Existing cups driver is available at

   http://www.evolis.com/eng/Drivers-Support/Product-support/Dualys-3

   but I haven't been able to make it print on both sides of cards, partly
   because using dumplex option in cups seems to segfault GhostScript
   and/or `rastertoevolis' cups filter depending on combination of duplex
   options.

   I also needed pixel perfect transfer to printer, and cups bitmap format
   is always in color, leaving final pixel modifications down to cups
   filter which always produced differences between file sent to printer
   and perfect black and white rendition of it.

SCRIPTS
   Current toolset consists of following scripts:

 scripts/inkscape-render.pl card/template.svg 201008159999 login Name Surname
   Generate pdf files from Inkscape SVG template in `card/' using
   `print-front' and `print-back' object IDs. Layers doesn't work since we
   can't toggle visilbity easily. To print more than one object gruop them
   and change ID of group.

   After pdf files are created, GhostScript is used to rasterize them into
   pbm (monochrome) bitmaps.

 scripts/evolis-driver.pl front.pbm back.pbm > evolis.commands
   Provides driver which generates printer command stream to print
   two-sided card from pbm files.

 scripts/evolis-simulator.pl evolis
   Simulator for EVOLIS printer commands which is useful for development.
   It creates one pbm file per page printed.

 scripts/evolis-command.pl
   Command-line interface to send commands to printer and receive
   responses. Supports readline for editing and history. Requires local
   parallel port connection, probably to USB parallel device.

EXAMPLE
   Following is simple walk-through from svg image in Inkscape to evolis
   command stream which can be executed in top-level directory of this
   distribution:

     ./scripts/inkscape-render.pl card/ffzg-2010.svg 201008159999 Ime Prezime
     ./scripts/evolis-driver.pl out/201008159999.front.pbm out/201008159999.back.pbm > evolis
     ./scripts/evolis-simulator.pl evolis
     qiv evolis*.pbm

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