I am trying to resurrect a clogged Epson 4880.
First I installed a set of cartridges filled with PiezoFlush (cartridges were primed and air vents opened).
Then I disassembled the head and cleaned it with PiezoFlush (soaking + reverse flush). The red liquid did its magic and I was able to get a full stream on all channels.
Before reinstalling the head, I filled the ink lines and dampers with PiezoFlush. I then put the head back.
So, I had PiezoFlush all the way from cartridge to head.
I used QTR calibration mode to flush the channels.
It started printing (I though I had won the war!) but then the ink faded until it disappeared. Another print returned a blank page, no ink on the paper.
I did a power cleaning. I expected to see a lot of ink in the maintenance tank but just a few ended up there. Still no ink when printing with QTR.
What else can I do?
Can it be the pump that is dead?
Or is it the printer that is really dead?