HP Print Head works for the refiller
Open the printer (in my case 7140), lift up the carriage, pull out the old print head and slip in the new. It's that simple. I just wish HP would stop penalizing ink refillers (2% of the cost of new ink cartridges) by starving our print heads every time estimated ink levels drop below estimated empty, despite ink monitoring being turned off. The trick for you value conscious re-fillers is to have a stable of 3 cartridges for refilling. HP software remembers serial numbers of last 2 cartridges and starves print heads for those who refill. Just have 3 and turn ink monitoring back on.
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