QTR-Quadtone RIP

epson r800
win xpsp1


I´m getting a huge amount of banding printing  a file (size a4, 240ppi) 
on epson premium semigloss paper and i can´t seem to find an answer to 
this, altough i spent 5 sheets already

I guess i have everything set correctly (1440 dpi), i don´t know if 
it's a profile problem, because i'm using one for enhmatte

anyone help please?

I presume you can print without using QTR and have no banding.

I don't have an R800, but my guess is that you're not likely to have much
success using an EEM curve on Ep prem Semi Gloss. Unfortuanetely the
R800/1800 printers are not well supported by QTR (from a curve availability
viewpoint). You could try making your own curves if you have a scanner or
densitometer, or try asking on this list if there are other participants who
have made an curve for the R800 (or R1800) and a glossy paper.

If all else fails, try changing the shadow adjustment in qtr to alter the
ink flow and see what that does to your problem. Finally, reduce your image
size to half a page and use each sheet twice while you're experimenting.

Good luck

Tom Moore

> -----Original Message-----
> From: QuadtoneRIP@yahoogroups.com [mailto:QuadtoneRIP@yahoogroups.com] On
> Behalf Of jfree2hear
> Sent: Sunday, October 09, 2005 1:25 PM
> To: QuadtoneRIP@yahoogroups.com
> Subject: [QuadtoneRIP] tremendous banding...
> 
> epson r800
> win xpsp1
> 
> 
> I´m getting a huge amount of banding printing  a file (size a4, 240ppi)
> on epson premium semigloss paper and i can´t seem to find an answer to
> this, altough i spent 5 sheets already
> 
> I guess i have everything set correctly (1440 dpi), i don´t know if
> it's a profile problem, because i'm using one for enhmatte
> 
> anyone help please?

Well, i made a few adjustments
1) converted the tiff file to grayscale (no improvement), was adobe 
1998
2) printed with archival matte paper, with EEM profile (show banding 
again, but less than semigloss)
3) printed with matte paper and 2880dpi (banding disappeared) so i 
guess this was it!

Could you tell me the real difference betwenn black boost (when 
you´re building the curves) and shadow adjustment?

and thanks for your kind help

joao

--- In QuadtoneRIP@yahoogroups.com, "Tom Moore" <r.t.moore@r...> 
wrote:
>
> I presume you can print without using QTR and have no banding.
> 
> I don't have an R800, but my guess is that you're not likely to 
have much
> success using an EEM curve on Ep prem Semi Gloss. Unfortuanetely the
> R800/1800 printers are not well supported by QTR (from a curve 
availability
> viewpoint). You could try making your own curves if you have a 
scanner or
> densitometer, or try asking on this list if there are other 
participants who
> have made an curve for the R800 (or R1800) and a glossy paper.
> 
> If all else fails, try changing the shadow adjustment in qtr to 
alter the
> ink flow and see what that does to your problem. Finally, reduce 
your image
> size to half a page and use each sheet twice while you're 
experimenting.
> 
> Good luck
> 
> Tom Moore
> 
> > -----Original Message-----
> > From: QuadtoneRIP@yahoogroups.com 
[mailto:QuadtoneRIP@yahoogroups.com] On
> > Behalf Of jfree2hear
> > Sent: Sunday, October 09, 2005 1:25 PM
> > To: QuadtoneRIP@yahoogroups.com
> > Subject: [QuadtoneRIP] tremendous banding...
> > 
> > epson r800
> > win xpsp1
> > 
> > 
> > I´m getting a huge amount of banding printing  a file (size a4, 
240ppi)
> > on epson premium semigloss paper and i can´t seem to find an 
answer to
> > this, altough i spent 5 sheets already
> > 
> > I guess i have everything set correctly (1440 dpi), i don´t know 
if

> > it's a profile problem, because i'm using one for enhmatte
> > 
> > anyone help please?
>

> From: jfree2hear
>
> epson r800
> win xpsp1
>
>
> I\ufffdm getting a huge amount of banding printing  a file (size a4, 240ppi)
> on epson premium semigloss paper and i can\ufffdt seem to find an answer to
> this, altough i spent 5 sheets already
>
> I guess i have everything set correctly (1440 dpi), i don\ufffdt know if
> it's a profile problem, because i'm using one for enhmatte
>
> anyone help please?

You might also try running the printer calibration process through the Epson
driver. I believe it separately tweaks the head alignment for 1440 and 2880
modes. Maybe it's a tad off for 1440.

--

Ciao,               Paul D. DeRocco
Paul                mailto:pderocco@...