Digital BW, The Print

Black only but with for example two heads. Has that been tried ?
If the total inklimit is set to be not higher than 100% for both
heads you get at least the weaving of two heads. That must give
less banding etc.

When the Epson 10000 was introduced the BO printing was not good
enough. Epson later on added 8 pass BO printing and the quality
became much better. But the 10000 has 180 nozzles per colour.
That can only be simulated with more heads on other printers.

A RIP like QTR is needed then.

Ernst