Lexmark Unison Original Toner Cartridge - Black

Loved that it shipped quickly and it, being, not an after market, worked!!!!!!

I ordered this for the office and as posted, it claimed to be compatible with the Lexmark CX625ade model. But the cartridge that arrived did not work (we tried it and it just made weird noises then our printer just beeped and gave an error) and we sent it back the same day. Still waiting on my refund, I have sent it back 2 weeks ago, and if course the post office had printing issues when I sent it back. We are in sout korea,so shipping does take a min, hence the disappointment when we found out the item doesn't work.

estimatedThis is the second time I buy the cartridge, the first time it worked well for me, although the cartridge was finished in a month ... now in my second purchase the cartridge was finished in a day since I installed it yesterday and the Today the printer tells me that there is no black ink ... Could you help me with this problem? I have made a third purchase to see what happens