Just wanted to re-visit this thread for clarification as I've been getting a PM about once a week on this topic;
First, I merely showed the link for Lava Inks to show the cartridge type. I do NOT use Lava inks. FWIW - these carts are the type I use on my 1204 and I would also suggest these for the 1304.
Here is the type I use for my 1604:
http://mutohbulksystem.com (Shop around I got mine for less than $500)
With the NITE system the big tanks sit on top of the printer holding 1 liter each, there are lines going down to the carts which have adjustable floats in them. I feel this system is too large for a 1204 or 1304 as there is no where to place it on the printer. However, this is the perfect system for a big printer that goes through a lot of ink.
As for inks, I have only been using JetBest inks in both my 1204 and 1604. I have used them long enough to feel confident in recommending them for Mutoh VJ printers like the 1204/1304/1604 and 1614. They have performed perfectly, slightly better reds, slightly more smell to them. Otherwise, I used the same profiles in my Wasatch RIP software as I did with OEM ink carts and noticed no changes. I can NOT say how they perform in the newer VJ printers that use a slightly different head, and as such you may want to talk to JetBest or other users before assuming they will work fine.
OEM Mutoh 220ml = $70 X 4 =
$280 for 880ml
OEM Mutoh 440ml = $130 X 4 =
$490 for 1760ml
JetBest 1000ml = $89 X 4 (plus $15 shipping) =
$371 for 4000ml of ink!!!
*Do the math, even if you only use 1 set of 220ml carts per month, you will pay for your bulk system in just a couple months. If you use more, you save more.
Best wishes!