Digital BW, The Print

Michael,

According to Epson, the wide-format printers up/downsample to 360 ppi before
dithering, and the desktop printers up/downsample to 720 ppi.

Bob Frost.

----- Original Message ----- 
From: "J Michael Sullivan" <michael@...>
>
> All things being equal, epson uses a custom stochastic dithering algorithm
that is
> likely based on "something" in the neighborhood of 360dpi as its base from
which to
> derive the dither. Send any more than that to the printer and the data is
certainly
> DOWNSAMPLED by the printer. The test above more or less proves this. Stick
with
> something in the neighborhood of 360 spi and you can't go wrong.