Haven't used my R3000 for a month but install a new PK (pro black) cart right before we left town in July... now the PK head is blocked up and 5x nozzle cleanings haven't budged it.
Is it better to just install a new PK cart or is there a trick to getting this unclogged?
I usually do a little office printing with the R3000 to keep ink flowing but this time it sat too long....
Thanks
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