Digital BW, The Print

I put banding in quotes because it's more like broad vertical areas of
various degrees of black. It's barely noticeable, but it's definitely
there. I'm printing an 8x10 image which has a large area of almost
total black shadow at the top, and these areas are about an inch or
two wide, only visible where there is deep black. Have tried the
cleaning routine, and I'm getting good nozzle checks.

I hope I've described this well enough to make sense. TIA everybody!

Paul