By newer tech I meant speed primarily. When I do big prints for people I get a lot of guitar practice in when I'm using the Zs. which is good for my music education but takes a lot longer to make money printing exhibitions. If you are just doing your own work time is probably not an issue.
Yes if you use the Canon you need good profiling equipment or have custom ones made. Forget about generic profiles.
The Canon has one maintenance tank which can be reprogrammed in the maintenance mode allowing you to reuse the tank and refill with cotton absorbent material - as you can do with the Epsons of the last series, don't know about the new Epsons .
My Canon uses very little ink over a long period of time for head maintenance whether the printer is being used or not. This is an aspect of the thermal head design. Both of these printers are plugged in all the time and automatically monitor nozzles whether you are using the machines a lot or not at all. Nozzles are always clean in both until the heads need replacing. With the new Canons you only have one head which I believe costs about $800.00 US every couple of years or so.
The Z heads like John said are dirt cheap at about $70.00 US each ( you have six of them for 12 colors) and actually last a very long time, years for each one in my case. They are not cheaply made units. They function extremely well on all media and are super easy to replace while wasting no ink. The only time the Canons waste ink is during head replacement. You have a resevour fill with quite a lot of ink that is dumped during head replacement. With the new ones however that only happens once every couple of years. As frugal as my Canon is with ink for nozzle maintenance, the Z is even more frugal. I have torn both the Z carts and the Canon carts apart when the printer demands replacement and in both cases there is NO ink left in either of them. In both of these printers the ink carts face downward allowing all of it to drain out of the carts.
Like I said earlier in both cases the software does an excellent job of keeping the system clean and ready to go. In my case I can be out of town for over a month and never worry about these printers taking care of themselves. However if you have a lightening surge it can blow your mainboards on either. So....when I am on vacation I unplug them both only for that reason. In 8 years of using both brands I've never taken longer than a couple of minutes to fire them up again. Not with my Epson Ugh.
A few questions popped up in my head:
Does the Canon have maintenance tanks?
Does it drink ink during a maintenance cycle?
Does the Canon handle idle time better or as well as the HP? By idle time I mean if the printer is not used for say 1-3 weeks.