
Hi!
   Could you donate some information about 2050? I try to implement the
driver into GhostScript. Anyway PBM raw format is commented in pbm2l7k.c
source of my old driver.
Here is what I alredy know about 2050:

Lexmark 2050
------------
Except pixel data the packets look similar to Lexmark 5xxx, 7xxx:

Init:
1b 2a 80        - ?? init
1b 2a 07 73 30  - ?? init like Lexmark 7xxx, 5xxx
1b 2a 07 63     - ?? init like Lexmark 7xxx, 5xxx
1b 2a 03 09 20
         ^^ ^^  - paper shift (BE order) - like Lexmark 7xxx, 5xxx
1b 2a 04 0f da 01 01 00 01 07 31 02 40 03 db
      06 1a 00 00 00 00 00 32 33 34 35 00 
... pixel data ...
1b 2a 07 65 - paper eject - like Lexmark 7xxx, 5xxx

=======================================================================
What I need to know:
 - format of the most important 1b 2a 04 .. packet, namely:
   * where is coded horizontal offset - start and end
   * where is coded number of packets
   * where is coded size of escape (if any)
   * format of pixel data
========================================================================

Sincerely
     ............
