Canon's imagePrograf series don't gunk up, but they will use a lot of ink cleaning. It's also their most expensive model of inkjet (my Pro 1000 will print 17" w

Canon's imagePrograf series don't gunk up, but they will use a lot of ink cleaning. It's also their most expensive model of inkjet (my Pro 1000 will print 17" wide, but is $1,300).