Digital BW, The Print

As Steve mentioned in a previous post, this is an inherent weakness 
in the gimp engine and usually only shows up when using 100K inks.  I 
have found that a profile using K plus a little of another ink solves 
this for me (at least so far).  The other solution is to add 1% to 3% 
noise to the deep shadow areas of the print.  

Lou

-- In DigitalBlackandWhiteThePrint@yahoogroups.com, Steve Kale 
<stevekale@b...> wrote:
> Print a page of pure black.  When it is have way through turn the 
printer so
> that it spits the paper out.  Check the dither with a loupe.  I'll 
bet you
> will see the other lines also and you will see how the dither 
breaks down.
> 
> 
> > From: selenium_toner <ekmail123@h...>
> > Reply-To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
> > Date: Wed, 23 Mar 2005 14:30:22 -0000
> > To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
> > Subject: [Digital BW] Re: Banding with IJC/OPM but not Epson 
Driver (help!)
> > 
> > 
> > 
> > --- In DigitalBlackandWhiteThePrint@yahoogroups.com, Steve Kale
> > <stevekale@b...> wrote:
> >> Are the faint lines evenly spaced, about 2-3cm apart, and running
> >> perpendicular to the direction of the print head?
> >> 
> > 
> > They do run perpendicular to the direction of the print head but
> > they are not all equidistant.  One is about half way in the image
> > and two others are about at the 1/4 and 3/4 areas, making them 
about
> > 1.5 inches apart almost equidistant, but another band is very 
close
> > to the 1/4 band. 
> > 
> > They do not align with the rollers on the printer.  I initially
> > thought it was the rollers and cleaned them 3 times until the pad
> > showed no deposits, but when I watched the next print being 
produced
> > I could see that two of the bands were in between, and not close 
to
> > being beneath, the rollers.
> > 
> > I appreciate the help.
> >