I’m wondering if anyone might have a suggestion about a problem I’m having with my ancient 9800. It was working fine… then I fired it up after not using it for a couple of months. It boots up okay (except sometimes I have to remove and put back the left maintenance tank). It then appears to print normally - but there’s no ink coming from any of the channels in the left ink cartridge frame (LLK, LM, LC, LK). There is ink in the lines.
The other odd symptom is that the panel shows the ink level of all those left channels, and also the left maintenance tank, as exactly the same - about one-third full. I took off the left cover and no obvious loose connections. The circuit board on top of the left ink frame appears to be working - for instance the printer sees when I raise and lower the left ink lever.
About a year ago I changed out the left ink frame assembly and the cleaning/capping station stuff and it’s been working fine up till now.
Hoping someone has seen this and can give me clue where to look… TIA!