I'm wondering what my next step is for a stubborn VLM clog on my R3000.
Everything was printing perfectly until I foolishly ran the LC cart dry and introduced air into the line. I ran an initial charge to get the ink flowing again and it worked for the LC, but as soon as the initial charge was done, the VLM started to act up. There is some ink getting through, but the nozzle check only shows about 20% coverage.
The attempted solution
I started out with head cleanings and nozzle checks, but there was no change. The nozzle check pattern stayed exactly the same. I watched the video and went through the full maintenance regimen. I cleaned the capping station and its edges, the wiper blade and the bottom of the print head after a several hour "soak" over a bounty paper towel with cleaning solution with head cleanings and nozzle checks. There is no improvement, but the nozzle check pattern has changed slightly. Still only about 20% coverage, but the coverage has moved slightly higher in the pattern.
The next step?
Is the next step to flush out the line with cleaning solution? Can I fill a cartridge and print only VLM with QTR until the cleaning solution has run through? Or, do I have to fill all the lines with cleaning solution with an initial fill and clean it that way?
Might it be the damper? Can I switch out that one damper? If so, is there a set of instructions or video for that?
Thanks in advance for your help.