A year ago I put my R2000 in “hibernation” for a long period. I think I did everything to ensure it would stand this period perfectly: complete cleaning as shown in Dana’s video, set of carts with PiezoFlush, good nozzle check, then put in a plastic bag and stored in its box.
Today I planned to put it back in operation (with Piezography again). I though recovering the printer would be as easy as a couple of cleanings with PiezoFlush carts, and a couple more with Piezography carts, but I’m still struggling to get a perfect nozzle check with PiezoFlush.
I ran 10 cleaning and nozzle check repetitions; things improved quickly at the beginning, then stabilized with 3 lines missing in one channel and 7 in another, and four squares missing in the checkered pattern below.
Since the problems were at the same locations, I thought of a clog and so I tried PiezoFlush injected with the syringe for small printers. Here I made the mistake of injecting air, because I pushed all the liquid and then pulled and pushed again, which created bubbles (the instructions correctly tell to fill the syringe with 2ml and push and pull 1ml, but I forgot the right procedure, my bad). At this point the nozzle check was much worse.
So I tried the trick discussed recently of running one cleaning with the filling plug of the carts removed and the test pattern improved (the checkered pattern below is now complete), though I still have several missing lines (much more than the 3 + 7 I had earlier today).
Now I’m not sure what to do. I was thinking about some more cleanings without filling plugs or another pass with the syringe, this time not injecting all PiezoFlush to prevent bubbles of air from going through the head. Any other suggestions? Do you think the problem is just air bubbles and ink pressure?
Has anyone else tried long periods of hybernation with PiezoFlush?