It's a 6100 and I have seen some of the prints the machine has done on a racecar trailer that was done 2 or 3 yrs ago and with 210 lam on the prints the stuff still looks good. The only reason ( and maybe I am scared for the wrong reasons ) that I would not do a solvent machine is I know I won't keep it as busy as I should be and keep the heads clean and running without issue. The horror stories of shutting down a machine and not using it for awhile and then fire it up and all hell comes calling is not something I need to be dealing with. I am hoping the HP machine is not the same maintainence as with the solvent inks. Again, maybe I am wrong, thats why I have left the printing to someone else this long. Also i'm about 50/50for indoor and outdoor work.
As you know, the 6100 is an aqueous printer. With a laminate, the prints can last a long time outdoors. You will pay more for vinyl media, but if you don't print on this material often, the savings in the machine may offset the cost.
I've also had a Mimaki JV3, and because that part of my business was very cyclical, I had many problems during down periods. I finally shut it down and purchased an HPL25500 latex ink machine in April. It's been a great machine so far. Prints well on the usual mix of solvent vinyl materials, has no daily maintenance, and can sit for a week and start printing with no clogged nozzles. While the color gamut is not as large as my 12 color aqueous machines, it's more than enough for the banners and vehicle graphics and POP work. It also prints really well on offset gloss paper, which cost about $0.10 per square foot. You might want to look at it.
As far as my aqueous ink HP's went, I had 2 HP5000's for 9 years, and ran at least $1,000,000 of output between the two. My total maintenance on each was to replace the belts on each machine twice (3 year intervals). They ran perfectly for years. The only problem was HP support from time to time, so get one from a good local dealer who can work with you.
