After this fell apart this past weekend I removed the 4 cartridges that were not flowing ink and vac refilled - and YES, upon refitting the carts into the printer all vent plugs removed, been this way since day 1 with these carts. Things seem to be working well since then. Today I just refiled 3 other carts due to relatively low ink levels - nozzle check looks good; will print this afternoon and see results.
I think what confounds me is the fact that when I ran into troubles w/poor (or no) ink flow the more I 'cleaned' the heads the worse things got - any idea why that may have occurred? It would not seem at all likely to me that this is 'air' entrapped in the carts or tube feeding the heads, recall, the printer had been fully operational for several days and numerous prints made, 13x19 prints at that.
This printer is 2 months old and not seen that much use, it is as of the installtion of Cone inks So I have not done any 'maintenance' (capping stations, wiper blade or underside of print heads). In reviewing Espon user manual the only recommended 'maintenance' item (in addition to print head cleaning cycle and possible 'alignment') is to clean the rollers, but that will not affect ink flow issues. Can you provide a reference (exploded view dwg or pics) that show how to address the capping station, wiper blade, etc. as you've mentioned? I'm all for keeping the machine in proper condition so that I can print reliably.