Re: [Gimp-print-devel] More stuff

[Ron v. O. <R.A...@Wb...>]

Robert L Krawitz wrote:
> 
> There are some bug fixes for the ESC 440 (so it should finally do
> softweave correctly), and another bug fix for 360 dpi mode that may
> improve performance on the ESC 900.  I've also incorporated
> Jean-Marc's new ink constants for the ESP 870.
> 

I've tested this on my ESC900.  
The 360dpi mode is a bit faster and the floating point exception is
removed.

Is this a 2-pass mode or 1-pass?  I believe the windows driver is
1-pass.

Is this a bi-directional printing mode?  I suspect it is uni-directional
and i think it could/should be bi-directional.

However some errors occur in the other quality settings.

#!/bin/sh
for q in 0 1 2 3 4 5 6 7 8 9 
do
   echo Quality $q:
   time gs -q -dNOPAUSE -dBATCH -dSAFER \
      -sDEVICE=stp -dMODEL=13 -sPAPERSIZE=a4 \
      -dQuality=$q -sOutputFile=tiger$q.prn tiger.ps 
done

Quality   Time(s)  FileSize     Printing time (time cat tiger0..9.prn >
/dev/lp0)
  0        33.2     1986522       18.5  OK but top margin is approx
0.9cm smaller than for other settings.
  1       112.1     7118815       68.0  OK
  2       110.6     7118808       error in output (empty pages and
garbage)
  3       116.1         955 !!
  4      signal 11
  5       191.5     9977020      121.0  OK
  6       190.2         605 !!
  7       198.7        2042 !!
  8       356.4        2127 !!
  9       390.9        1549 !!
  
I have succesfully tested 3.1.3 with quality setting 0,1,2,3,5,6 and 8
so the last changes seem to have broken some settings.

Best regards,

Ron van Ostayen
R.A...@Wb...
Laboratory of Tribology
Department of Mechanical Engineering
University of Technology Delft