I calculated the coverage of this cartridge. For standard 24x36 architectural drawings, I almost exclusively print just black line drawings. Only about 15% of the prints had colour. I printed about 150 D size prints.
Ridiculous that I had to buy this when I only plot in black and white. Took a week to get and no work around to just print black. Ridiculous. No pre warning and two day shipping really being a week was in fine print. Last HP large format for me.