My LK and LM channels have been clogged on my 7900 for some time. I ran two piezo flushes through my 7900 this past week. I ran out of flush, so I have more on order (to arrive on Tuesday, July 1.) and will flush again. However, these two channels consistently show problems (not printing) after four nozzle checks. In fact, the LK channel has gotten worse after the flushes and the nozzle checks.
Do I just keep flushing and flushing until (and hoping) that the flushing will open these nozzles?
And if this does work, how do I get the original Epson ink installed back into my printer? I don't really understand the process for what to do after the flushing procedures.