Have I killed my printer?

Hello,
I have a Lexmark Z52 printer and have been refilling the cartridges. So far I have not had a problem but this time I got the cartridge too full and ink ran down the back over the contacts. I did not realize this until installed the cartridge and started getting blobs of ink on everything. Now, even with a brand new cartridge, the printer will not print color. Is there a way to un do this damage?