Sorry to hear about your 7800s! For 24" large format printing, consider the Canon imagePROGRAF PRO-2100—great color accuracy and supports third-party...
I find it so odd that there isn’t a 24” sub printer on the market with more than 4 colours. Seems that going super wide format and spending 5/6k+ is...
They've stopped supplying this now which is a real shame. The boxes of 100 don't work out that cheap anymore along with delivery costs. A real shame...