X-Git-Url: http://git.rot13.org/?p=Printer-EVOLIS.git;a=blobdiff_plain;f=README;h=3bf2dbc5806620281bf83d1bb98af7a30c47d62c;hp=4d38e836bd330d38a9e76746f4a35788a36471e3;hb=HEAD;hpb=6dcf1d6b58593c6dc8b18a4e46fa7900b8b077b0

diff --git a/README b/README
index 4d38e83..3bf2dbc 100644
--- a/README
+++ b/README
@@ -7,26 +7,52 @@ DESCRIPTION
     ribbon (K) to provide pixel-exact driver with support for two-side
     printing.
 
-    Existing cups driver available at
+    Existing cups driver is available at
 
     http://www.evolis.com/eng/Drivers-Support/Product-support/Dualys-3
 
-    does work, but I haven't been able to make it print duplex on cards,
-    especially when generating front and back pages separatly.
+    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 sonsists of following 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.
 
-  scripts/inkscape-render.pl card/template.svg 201008159999 Name Surname
-    generate pbm files from Inkscape SVG template in `card/'
+    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 commands
+    Provides driver which generates printer command stream to print
+    two-sided card from pbm files.
 
   scripts/evolis-simulator.pl evolis
-    provides simulator for EVOLIS printer which is useful for development
+    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