ss202sl :
Correct me, but aren't HP print heads part of the ink cartridges themselves? Then if he has just replaced them, why would he need to clean them?
How long after removing the tape seal was the cartridge left open to the air?
At any time after removing the tape seal was the printhead allowed to sit up against something absorbant?
How long was this cartridge laying on the shelf?
Was the foil pouch intact or was there a small hole in it?
Was this in fact a "new" cartridge, or perhaps "new" only to the user?
Is this a refilled cartridge?
Just a few of the reasons to clean a printhead that was just installed.