A thousand of thanks. Because I had tried many source to find the cartridge, nobody answer me for a long time. I had begged HP helping me to do a free of charge testing. It's bingo, certified only the ink problem. So, I have already solved the problem, just buy a new ink cartridge is OK.
I will never buy 代用墨 because no guarantee and not cheap.
Anyway, you're very help. Only U help me :-( :-( :-(