How do you think that an additional LcLm-Head could help with color consistency? I have no idea.
I think that has been well documented in this forum, and I don't remember having those
color consistency problems with the L25500. If you call HP techs they will tell you the same thing. With the L300 series you don't really want to be using lc/lm inks at 10pass and lower. I have seen way to much ink starvation going on with having only one lc/lm printhead that I now rarely use lc/lm inks if I run 10pass or lower.
The speaker mention higher densities when talking about "vivid" print modes, e. g. from 3:20. More detailed dealer information (we are dealers) talks about up to an ink limit of 185% at 10 passes frontlit printing (currently 120%). And for my opinion, the higher speed for outdoor prints rely directly to a higher ink density on 4 Pass Mode.
We haven't a demonstration unit until now, will be june as far as I expect. I will check that as soon as possible.
It will interesting to find that out. But if they know that (we have been complaining about that since the L300s were released) why haven't they change that in the firmware on the L300 series. If the problem is ink starvation with having one lc/lm printhead, just don't allow CMYKcm at higher ink densities at 10 pass or under.
Really it almost like if they are going to use two optimizer printheads then they will have to have higher ink densities. I have done a lot of testing with different optimizer settings and I can't imagine why they would need to optimizer printheads. On most SAV vinyl for example at 150% ink density the optimum optimizer setting is between 8 and 12. All increasing it does is affect the ink density (lowers it as far as getting more vivid colors) and the higher you go the more grainer it looks. Probably from less dot gain. Most banner media has pretty much the same response.
Has anyone seen situation where they needed a real high amount of optimizer. But again using two optimizer printheads may have more to do with ink starvation at 8 pass and lower.