The first candidate is and Epson. The complexity of the mechanism is high, and it's a heavy printer. Does it waste ink?
Yes, it does. A lot.
What you see in the pics is a 5 mm layer of muddy ink. It covers a reasonably large amount of surface in the bottom of the printer. Moreover there are thick, very dense, fiber pads all around to store lots of ink.
There is even a pump that suck ink from the heads and circulate it to the pads through some tubing... I'm glad I no longer use those inkjet scams. This is upsetting.
I also disassembled an HP. The engineering here is far simpler, weights less, does the same and is less noisy.
In the pictures it can't be seen very well, but in comparison, there is little place occupied with wasted ink in the HP. There aren't neither large pads nor pump.
Personally, this is not much of a surprise. Even without taking anything apart, I knew I was being scammed when I used inkjets.
It seems here that HP waste much less juice than Epson, but anyway I'm sure there is no need for this.
If you want my advise, get a laser one.