printer: black ink doesn't work
The printer fails to print when using black ink. I tried
- cleaning the ink connection (metal dots between ink cartridge and printer) with
- use a new black ink cartridge (I know it gives ink when cleaning it)
- force the printer to print black by specifying greyscale printing
When printing, I noted the printer goes zip, zip, zip (i.e., the ink cartridge
moves back and forth) and it sounds like it is printing, but nothing comes out.
The color cartridge works just fine although it is cheaper to use black ink.
What else should I be trying? How can I be sure that it is a hardware
malfunction and not anything else?
Fyi, I'm using a HP Deskjet D2430. In the past, the black ink worked just
fine. Any help would be appreciated.