Digital BW, The Print

--- In DigitalBlackandWhiteThePrint@y..., "Tim Mimpriss" 
<tim.mimpriss@t...> wrote:
> Martin Wesley wrote:
> <<
> My experience with Piezo on a 1200 was that I was always getting 
sub-
> micro banding in the 25 - 50% tones in very smooth sections of the
> prints. These sometimes got bad enough to be micro banding.
> 
> With MIS VM on a 1280 I have fine corduroy banding in the 50%-80%
> tones that can only be seen with magnification.
> >>
> Are you using a Cone Piezography driver on both printers?

Tim,

I am using the Piezo inks and driver with the 1200 and the MIS VM 
with the Epson driver in the 1280.

> 
> I have used Piezography inks with both the Cone Piezography driver 
and
> Epson's driver. With the Cone driver driver it is virtually 
impossible to
> avoid some form of artifact somewhere in the grayscale, usually 
only visible
> in smooth toned areas. It takes several forms including banding and
> patterning. The problem is that the Cone driver requires perfecty 
printhead
> alignment in all axes. Most of us cannot achieve that. I find the 
Epson
> driver more forgiving and therefore prefer it.

That has been my experience also but I have seen other people's Piezo 
prints that were flawless so it is possible. Maybe you just have to 
have one of the better printers or we got some of the bad ones.

Martin