QTR-Quadtone RIP

The front panel adjustments are for paper feed issues.  For the weave algorithm
you can have 4 pass or 8 pass.  In QTR the Resolution selection allows
1440dpi (4 pass) or 1440super (8 pass).  It's the same as the Epson driver
"super microweave".

Roy

On 6/23/07, Mark McCarvill <espresso_forte@hotmail.com> wrote:
> Hey Chris,
>
> The 7600 user guide just says that Print Adj "adjusts the intensity of
> the micro weave pattern; improves quality but lowers printing speed."
> I haven't read anything more technical than that.
>
> I didn't do a thorough test of print quality at 1 thru 9, so I don't
> have results to compare to yours. I was having banding problems myself
> a while ago and just increased Print Adj to 9, which reduced (but
> didn't eliminate) banding. I haven't noticed a drop in printing speed
> but in any case I'd always choose quality over speed (for final prints
> anyway).
>
> The other adjustments which together eliminated banding for me:
>
> - putting suction on Low (doesn't make sense since I'm using average
> to thick paper, but it helped)
> - setting PFA to +.20 (minor but noticeable improvement)
> - setting the shadow ink limit to –20 (most of my banding was in the
> 70-100 levels of the test gradient)
>
> This essentially eliminated banding at 720 dpi. Then to make the
> prints even smoother, I print at 1440.
>
> Instead of testing on actual prints, I'd recommend testing using a
> gradient, to pinpoint where banding occurs. Then after you tune out
> banding in the gradient, all your picture files should print fine.
>
> Hope this helps,
>
> Mark
>
> --- In QuadtoneRIP@yahoogroups.com, "cwb1946" <cb@...> wrote:
> >
> > Thanks Mark.
> > I had looked into this on a previous occasion, with little luck, and
> was going to revisit it
> > this morning more carefully.  I am curious if you have found any
> technical information on
> > what these these settings actually do?  I didn't notice any linear
> progression from 1 to 9, in
> > fact it seemed sort of random. What have your observations been in
> this regard?
> >
> > This banding seems to depend on the file: some print perfectly
> smooth, some very
> > banded; and some values smooth, some banded in the same print!  (It
> doesn't seem to be
> > a paper feed problem. )
> >
> > Chris
> >
> > --- In QuadtoneRIP@yahoogroups.com, "Mark McCarvill"
> <espresso_forte@> wrote:
> > >
> > > Hi Chris,
> > >
> > > You can adjust the intensity of the micro-weave manually via the
> > > printer's control panel. It's under SelecType > Paper Config > Print
> > > Adj. The default is something like 5 but I keep mine at the max, which
> > > is 9.
> > >
> > > Mark
> > >
> > > --- In QuadtoneRIP@yahoogroups.com, "cwb1946" <cb@> wrote:
> > > >
> > > > I am used to using the "Super MicroWeave setting in the Epson 7600
> > > driver to get rid of
> > > > horizontal (print head direction) banding.  When using QTR this
> > > control is not available.  Does
> > > > anyone have an alternate work around to accomplish the same results?
> > > >
> > > > Chris
> > > >
> > >
> >
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>