Micko

Hi Guys,
I seem to have the reverse to a problem posted previously on the forum.
Have a Lexmark X1180 printer linked to a IQon Computer running Win 2000.
problem is the black print seems to have ceased to function.
History as follows: replaced print cartridges with refills. Colour works well but black one will not work.
Initially black was smudgy but did work but removed and cleaned up...now will not work at all
Have replaced black with two new (different/Lexmark) cartridges...each time still no go.
Have cleaned the terminals and the print heads with cleaning fluid...still no effect
have used the printer softwear to clean nozzles...no effect even on multiple cleaning runs
have uninstalled printer and driver from system and reinstalled....still no joy
have tried test pages and resetting the ink levels on the softwear each time etc
black ink is coming from the cartridge when "wiped" with paper. also tape removed/face wiped so no gunk etc ie good reinstall of cartridges but
seems like no "connection" with the print heads
Any idea what is going on here and how I might rectify the situation
thanks
Micko