Digital BW, The Print

John,

it's not so much about "how  good" OPM is at resampling: it just doesn't  at all! 
It  sends to the printer whatever gray tiff you open as is. 

So, you are correct, the closer to 720 the file is, the better. You may not see a 
big difference past, say 400-500 dpi, but will certainly see pixelation if you 
send a 360 dpi image. The same image printed through the Epson driver will 
print smoothly. In that sense, there is an extra step that one needs to take if 
their files are below 400 dpi (at 100% final print size).

As for the 16 vs 8 bit....  it definitely likes the 16bits better (it was originally built 
that way) , but an 8bit 720 dpi file will be just fine.

Just to clarify: this is not about scanning resolutions and extracting info from 
the original etc - it's just about matching device dots to pixels.

Antonis





> Following the threads I gather that OPM is nowhere near as good
> at re-sampling images as is the Epson driver.  Therefore, for
> best results, you need to re-sample the image to an output
> resolution of 720dpi in Photoshop before sending it to OPM.  Also,
> having a 16-bit grayscale seems to help.
> 
> Speculatively, John