Canon imagePROGRAF PRO-4000 Ink Leak Hunt

Curiosity can surely lead to some wasted time and a bit of a mess. Ever since I got the Canon imagePROGRAF PRO-4000 to teardown, the intermittent ink leak that caused it to be scrapped has puzzled me. I finally got a couple of hours to tear into the troubled ink tank unit to see what I could find.