Welcome to CDFreaks :flower:
Dropped the ball on this one, not checking in often enough:o
Sounds like one of my problem CISS. Did you buy this pre-filled, or empty with ink? If pre-filled,, did you remove the plugs from the reservoir and install the vents? If so, sounds like you either got a CISS from a seller that buys empties and fills them himself(improperly in this case), or a single chamber reservoir unit(like mine) that requires the reservoir to be at exactly the right height relative to the printheads. Could also be poor match between reservoir and cartridge ink dampers. If the hoses appear to be empty, raise the reservoir up slowly(I used empty cd cases to keep it at the right height) until you see ink start to move towards the cartridges. Wait 5-10 minutes, run nozzle clean and see if it helps. Give it a little longer, if necessary. If it does, be prepared to adjust the height till you find the perfect balance between too much(ink splotches) and too little(loss of a color).