Recently purchased a VJ1204. Pulled ink through the lines with syringes, but the ink seeps back up. I can remove the dampers and pull ink into them, but it does the same thing, goes back. Where else can I pull ink into? I try cleanings and nozzle checks and get absolutely nothing. I have purchased new dampers, cap top, cleaning solvent and wiper assembly. When I got it home, I followed the manual and installed ink cartridges, did a charge. Each color has two lines and where it splits into two lines there are black little caps. Could this be causing an issue.