Re: banding?

Damiano Bianca wrote:
> I do not know if the name is this (or if it is other). Job in Win XP,
> epson 2100, original inks. Printing in A3+ I find an anomalous
> shading in horizontal after 4/5 cm from the first line of the sheet. I
> have tried with large, small immages, one level, tif, emptying the
> memory….
> I print the file as is and no-color managment. I have installed the
> last driver epson, I printed with another 2100 and the problem is the
> same. Banding is at 4,5 cm from the edge of the film.
> I tried in A4 and the problem is slightly less evident.
> What can I do?
>

Tempting to suggest there may be an ink flow problem -- if the ink can't
get to the head fast enough, you may see a reduction in droplet size
(translates as reduced density) once the ink pooled in the head has been
depleted. This will be more noticeable on larger images, because the
printer will deposit more ink per pass and thus go through the ready
supply faster.

I'd expect to see this on printers in which the ink is held in a fiber
material in the tank; less so on those where the ink is loose or in a
bladder.

This could also occur due to head overheating with printers that use
heat to produce the ink droplets (I wouldn't expect to see that effect
with piezo printers); offhand I know Canon uses heat, but don't know for
certain on Epson.

-- 
After you use everything you know and can find out to make what you're 
certain is the right decision, and it's too late to change things or 
back out -- you'll find out something that would have reversed the whole 
thing for you, if you'd only known in time.
Donald Qualls, aka The Silent Observer   http://silent1.home.netcom.com
Opinions expressed are my own -- take them for what they're worth
and don't expect them to be perfect.
_______________________________________________
Post to the list as PLAIN TEXT only - no HTML
carbon mailing list
carbon@spitbite.org
FAQ at http://spitbite.org/carbon/list.html