Re: [Gimp-print-devel] STC800 problems (was Print plugin 3.0.6 bug report)

[Stefan K. B. <sf...@co...>]

Robert L Krawitz wrote:
>> [snip]
>> I did, but found 24/1 to be the best looking so far (very small
>> horizontal stripes) and it looks just right in size compared to the
>> output in microweave 720. All the other variations has been too
>> large vertically. Talking strictly proportionally, it would seem
>> that 24/0 would be a great setting...
> 
>  Wow.  What happens in high and highest quality mode, and with 1440?
>  Is it much faster than microweave?  How is the quality?  It might be
>  that the 800 can actually do microweave well.

Well, I haven't tested 1440 yet. I have enough trouble with the other modes...

Faster than microweave? Huh? Every higher mode is slower and slower to print -
testing 720 DPI highest quality made me go out for dinner. :) Can't really
judge the quality yet due to the banding problems, see below.

I've found this out so far, going with the 24/1 setting for now - you probably
agree that that was the best one of the ones tested:

Original (new) picture: http://home.swipnet.se/consultron/tulip.jpg

The three following at http://home.swipnet.se/consultron/tulip1.jpg:

360 microweave: Banding. Severe banding. Interestingly enough, the bands are
pink, the same as the tulip in the center of the picture. You'll spot this one
easy.

720 microweave: The best looking one. Almost untracable banding.

720 softweave:  Banding, pink. On the lower part of the picture, the banding
is less proportional than on the top one. This one was printed at the lowest
possible position (in the GUI) on A4, and was cropped with the last part of the
picture output on the next page.

720 DPI high quality: Wouldn't print! I got a small band of ink, then the
printer started feeding paper. Tried setting the picture in different locations
on the paper, but that didn't matter.

The next one at http://home.swipnet.se/consultron/tulip2.jpg:

720 DPI higest quality: Symmetrical banding. There's a single black band on
the lower half of the picture - don't know if that's a smear or a real problem.
Haven't got time to reprint it right now - it took loooong time.

Is it possible that this banding might be a problem in the algorithms, or should
I continue to try different nozzle/separation configurations?