Update, after more than 10 days from my previous post.
I finally received the Pizeo-Flush cleaning solution from InkjetMall in Vermont.
Had to drain all my refillable cartridges first.
I only purchased a 700ml bottle, at $65 a pop.
I chose to use 50 ml of the solution on each cartridge.
Since my problem was VLM, I only operated on the Left side bank of cartridges of the printer, that the Service Manual call "Full".
First thing I did was to run a Nozzle Check before doing anything -- VLM was completely clogged, rest was perfect.
So, at the suggestion of sportmaster, I first ran an "Ink Charge" cycle expecting cleaning solution to move through the lines.
But there was no change! The Maintenance Tank weighed the same before and after?
So, I took the refillable cartridges out and ordered an "Ink Eject" command.
That made a difference.
FYI, a Maintenance Box/T6190 weighs 239g, new.
After this first Ink Eject cycle, it weighed 292g. So, 53 g or solution was expended out of this procedure, or 53 divided by 6 ink cartridges, in other words, 8.83g per cartridge, which translates to almost 9 ml of solution? Which does not seem like much? Maybe that is part of my problem? Tthe "Pump Cap assembly" does not draw enough ink?
(Another $250 expense...or more? if I so chose to go down that path -- have mercy!)
At this point, I ordered my first Ink Charge cycle, to fill the lines with Piezo Flush.
The result? See attached JPEG (Nozzle Check 3).
LLK, VLM and LC were completely absent, OR, GR and Y were showing.
Of of the nice feature about Pizeo Flush is that it is "colored", in a vivid purple, purposely so that, it helps diagnose Nozzle checks.
At this point, I decided to run a second Ink Charge cycle, something I never attempted in the past on this printer.
The result? See attached JPEG (Nozzle Check 4).
As you can see, all the lines are "printing" except that stubborn VLM.
At this point, before running more cycles, I need to consult the "oracle" (as in the Matrix movie).
I'll send an email to John Cone at InkjetMall to see what he has to say.
It seems I'm right back when I was before ordering Piezo Flush.
Oh! Forgot to mention! I ran into a Fatal Error 1A39 right after doing the second Ink charge cycle.
I was in hot water. I read elsewhere on the Forum about someone's experience and it wasn't encouraging...
I had to shut the printer down a few times, and futs around with the gray ribbon cables.
I was a little desperate but it did work after futsing with the cables. Gracious machine :-)
Now, I reason that I ought to let the printer sit overnight with the lines being filled with the Piezo Flush cleaning solution.
If that does not help, I'll attempt a few extra Ink Eject / Ink Charge cycles.
I suspect the head is not dead and there's air somewhere in the system, perhaps the Ink Assembly?
I don't suppose I can see a huge air bubble in the line? But I find it suspicious that an Ink Eject cycle only drew 53 ml or ink?
That 1A39 error may mean that the printer is doomed anyway? I'm not about to open the printer up and check fuses and what not...
Thank you for reading my post.