I’m doing the initial flush of converting my 7890 to PiezoPro.
The new Light Black Cartridge freshly filled with PiezoFlush is not clicking in properly. The other 8 cartridges loaded fine. The chip is in place and properly aligned, the air plugs were removed, the existing cart was re-inserted and it clicks in just fine.
So I’m dead in the water with a cart that will not load and is holding 350ml of PiezoFlush and my 7890 hostage.