Digital BW, The Print

I'm finally getting good prints using UT-3D on an SP2200 with Musie Silver Rag and Paul 
Roark's profiles. And to the un-aided eye, the prints look very good. But upon examination 
with a lupe, I'm seeing micro-banding (mostly in the mid-tones). Once again, I can only 
detect this banding when examining the prints with a lupe.

Is this normal inkjet behavior, or is it possible to acheive zero banding, even when 
scrutinizing under a lupe?

Thanks.

-Guy