Digital BW, The Print

Hello,

I've just installed a CFS system from MIS on an Epson 1290 printer 
with VM quadtones. I had problems with the vacuum filling method (I 
managed somehow to break to vacuum pump provided by MIS) and in the 
end I used the bottom filling method to fill the cartridges. I 
inserted a syringue at the bottom, breaking the seal, connected the 
tubes to the ink bottles and started pulling the syringue until I 
got some ink in it. It worked fine, and it prints well, but shortly 
afterwards I saw that the tubes are filled with air in long parts of 
it close to the cartridge. The section of the tubes next to the 
bottles have ink in them. I've made only 4-5 prints so far. 
Question: Is the air going to damage the system? I fear that the 
printer is using the ink in the cartridges, but once it starts 
getting air inside everything will be messed up. Anyone had this 
problem before? Should I refill the cartridge, and how could I do 
it? Pulling all the ink and air with a syringue until I have a lot 
of ink in it?

Sorry for this naif question in the middle of so high tech 
discussions here. Like many, I follow them with interest trying to 
understand what's going on. Thanks in advance.