QTR-Quadtone RIP

The different dpi's should use about the same amount of ink for the
same print density.
Yes, you probably need different ink limits for the different dpi's
but once you get it
so the same density print comes out the ink usage should be very close.

The main cost to 2880dpi is just the extra time to print.

Roy

On Tue, Mar 30, 2010 at 9:41 AM, dj_joy_uk <yahoo@...> wrote:
> --- In QuadtoneRIP@yahoogroups.com, Michael King <drmrking@...> wrote:
>>
>> I am using 2880 and only 2880. Why use anything else :)
>
> I never really use it as it's usually a waste of ink, the differences are imperceptible on most papers.
>
> When I was profiling Epson Exhibition Fibre/Traditional Photo Paper on my 7880 I tried an ink limit test on both 1440 and 2880.
>
> Naturally the 2880 saturated well before the 1440, the ink limit on 1440dpi was 85% and on 2880dpi it was 70%.
>
> When I subsequently printed out the calibration strip again with the respective ink limits set, the DMAX at 100% on both 1440dpi and 2880dpi was absolutely identical.
>
> So if there is a benefit in printing 2880dpi, it's not DMAX. There may feasibly be some difference in smoothness, but I've not compared, I may do some testing out of curiosity.
>
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