This problem can be particularly annoying because it can be the result of a
hardware problem in the printer, or a software driver problem.
Since you replaced the black cartridge, have you tried to use any of the
printers diagnostics (in the driver options,) or perhaps any diagnostics
built in the printer?
Does your printer have heads on the cartridges, or are they just ink tanks?
Make and model info would really help!

I once had a customer (years ago) complain about the same problem. Seems
they were trying to print white text on colored paper. The long and short of
it was thay they hadn't figured out the difference between printing a
graphic rendition of a page, and a non graphics rendition. With no white
ink, it's only possible using a graphic rendition that provides a colored
background.

"mrs bird" mrs wrote in message
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re installed, new cartridge, but cant print black. colors work....? what
can I do