Digital BW, The Print

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "ben_zlotkin"
<ben@b...> wrote:
> 
> I know that we should generally print files (On the Epson) with a
resolution at or near 350 
> PPI.
Not exactly true. The native resolution of the 2200 (and all Epson
desktop models) is 720 ppi and the Epson printer driver will
automatically interpolate incoming data to this value before printing.
Hence, having your file at 720 ppi resolution (or a lower value
derived froman integer divisor (e.g., 360 or 240 ppi) is where you
should be aiming.

Many people will go to the trouble of interpolatiing "all the way" to
720 ppi _before_ sending the file to the printer under the assumption
that their software algorithm (PS or Qimage, etc.) can do a better job
than the (presumably inferior) method used by the Epson driver. That's
what I generally do.


>My question is what are the negative effects of using a higher
>resolution? 

None, other than it might be a bit stressful (at least temporarily) on
your hard drive and/or RAM capacity. Of course there's no need to
archive your images at the higher resolutions.

 If I opt not to 
> throw out any data when re-sizing an image and the resolution ends
up around 450 PPI, 
> will this give me a lesser image than if I down-sized to 350?

No, higher is better, but best not to work with such "odd" values (see
above).

Phil
> 
> Thanks - Ben