QTR-Quadtone RIP

>I think you are assuming that weaving is a bit more magic than it really is.
>On say the 2200 in one pass the head puts down a dot up to every 1/360 inch
>horizontally and every 1/180 inch vertically.  (The nozzles are all vertically in
>a line).  So to get 1440x720 dpi there must be 4 passes to fill in the full 1440dpi
>horizontal times 4 to fill in the full 720dpi vertical.  Imagine that the paper is
>divided into all these 4x4 grids.  Each pass of the head can fill just one square
>of this 4x4 grid so there will be 16 passes needed in the area to fill it all in.   The
>whole function of weaving is to ensure that a different nozzle is used for
>each of the 16 squares in the 4x4 grid.  There's no way to use more than 16
>nozzles to fill in a 4x4 grid.  The difference between 96 nozzles of the 2200
>vs 180 nozzles of the R2400 is that you are working on 180 different 4x4
>grids at the same time.  But within a single 4x4 its the same basic thing.
>
>Conceptually it pretty simple, in practice its a bit of a nightmare of shuffling data.
>
>  
>
Roy,

I have learned a thing or two along the thread. There's less to be 
alarmed about than I thought at the beginning. At least I know better 
what basically is going on and build on that with the knowledge I 
already had.
Getting back to the subject line I wonder what you think about a target  
in between the 21 and 51 patches and the stepping rate more variable in 
the range so it controls the shadow and wherever needed better. As 
discussed with Tyler Boley. Little I can contribute but the target 
design itself.

Ernst