I was at a convention this weekend, and even though I recently replaced my dampers, got my reoccurring black banding problem (after a day and a half of excellent prints). A couple cleanings did not clear it, so I tried a black ink swap. Bad idea. I hadn’t properly primed the matte black side when I replaced the dampers, so the black channel went completely blank. Swapping back though did not revive it, nor did a power clean.
At this point, I’m thinking that my capping station pump probably isn’t generating enough suction to move the air. I’ve watched the power cleaning process, and the ink volume ejected during the “loud flappy” part of the cycle doesn’t seem like it’s enough for the noise. Also, it seems that 4 of the inks are used more in cleanings than the others which leads me to believe that one side of the station isn’t functioning properly. Perhaps K and M are on the same side, which would explain why I’ve had so many problems with those two.
Your thoughts? The capping station isn’t exactly expensive, but I don’t want to invest more if people think it won’t help. (I went and bought a brand new 3880, which was enough of a kick in the wallet. Having 2 might be nice, but is certainly not necessary.)
I’m not doing a good job describing this…sorry.